Summary of yields obtained in field-plot experiments conducted from 1920 to 1940

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Material Information

Title:
Summary of yields obtained in field-plot experiments conducted from 1920 to 1940 inclusive, at Tallulah, LA., for the control of cotton insects
Physical Description:
38 p. : ; 26 cm.
Language:
English
Creator:
Gaines, R. C
United States -- Bureau of Entomology and Plant Quarantine
Publisher:
U.S. Dept. of Agriculture, Bureau of Entomology and Plant Quarantine
Place of Publication:
Washington, D.C
Publication Date:

Subjects

Subjects / Keywords:
Cotton -- Diseases and pests -- Control -- Louisiana -- Tallulah   ( lcsh )
Cotton -- Field experiments -- Louisiana -- Tallulah   ( lcsh )
Crop yields -- Tables   ( lcsh )
Genre:
federal government publication   ( marcgt )
non-fiction   ( marcgt )

Notes

Statement of Responsibility:
compiled by R.C. Gaines.
General Note:
Caption title.
General Note:
Typescript.
General Note:
"December 1943 ; E-606."

Record Information

Source Institution:
University of Florida
Rights Management:
All applicable rights reserved by the source institution and holding location.
Resource Identifier:
aleph - 030285680
oclc - 779492108
System ID:
AA00025084:00001

Full Text
L!CRARY
STATE PLANT BOARD

December 1943 -.;

1-"'TTD STATES DEPA'T! .'::T Cr AGRICI-T'.7,E
AGRICUL: .AL ES'RCH AD'I'STRATION
BTiAUJ OF Z rC OLCGY AP) PLANT "."A:'IiE


SIT"M-ARY COF YI 3LDS OE7A1'7D IN, r FIELD-PLOT E'FE-3I?7TS
CO"D"UCTED FROM 1920 TO 1942, VrCLTSITV, AT TALL-LA.-H,
LA., FOR THE CONTROL OF CCTTO'T T:TSECTS

Compiled by R. C. Gaines, Division of Cotton Insect Investigations


Plots in'most experiments were approximately 1 acre in size from 1920
to 1938, inclusive, unless otherwise stated,' here l.:-r'e dusters v:ere tested,
the area of the plots was greater. Plots were one-fourth of an acre or more in
size from 1.39 to 1942, inclusive, unless otherwise stated.

Insecticides were applied with hand guns, in most experiments during:
the early morning hours from daybreak until about 7'.a.mn. The ta.'.'les which fol-
low show when applications were applied at other ti)-.e.s of d-,y. The rate of -
application usually ranged from 5 to 7 pounds:.per acre.
L
Yield was the numnbcr of pounds of seed cotton produced per acre.

Insect abundance is reflected by the nui.ier of ef?.ctive applications
and the amount of increased yield. If only 1 or 2 applications wvre required,
the boll weevil infestation was ",ery low"; 3 or 4, "low"; 5, 6, or 7, ":.di:;
8, 9, or 10, "high"; and 11, 12, or 13, "very. high".

Those intorcstcd in certain treatments or experiments may obtain the
detailed records of insecticide pou.'da'-es and of boll weevil and other insect
infestations by writing to the Division of Cotton I'cct Investigations, T _roau
of Entomology and Plant 'i.uarantino, V.ashinjton, D. C.

SAn index 'of the materials included in this report is given on r.ai-: s
35, 36, 37, -jid 39.

















DEC 2 9 1943




-2 -


and interval I Yield per acre in each plot. :Avcr?.g: : Pcr
between appins. : :'umber of effectiv c.pphns. in p-.rcnthcsis : yield :Poundss cent


Ch,:.ck (1920)
C. a. (4-day)


C. a.


(1920)
('-day)


E&rly infesta.tion
851 768 601 7. .10
1280(6) 1062(8) 852(8) 1065 -25 41 :
Intorxuediatc infestation
1067 969 681 815 638 834
1322(5) 1320(5) 10753(5) 987(5) 907(6) 1122 288 35
Late infestation


Check (1920) 665 1418 10,142
C. a. (4-day) 828(3) 1616(5) 1222 180 17
Appins. started with "30-40%- inf.
Check (1920) 1040 857 949
C. a. (7-day) 1060(2) 951(3) 1006 57 6
-' Applnrs. started with 1O-35,0-inf-.
Chock (1920) 476 785 1083 709 763
C. a. (7-day) 820(4)" 1014(3) 1411(4) 1312(4) 1139 376 649
Applns. started with 5-30%, inf. Long staple
Check (1920) 725 803 943 1074 1194 948
C. a. (4---day) 8 (6) 1005(6) 1264(6) 1277(4) 1221(4) 112.2 174. 18
--App' i3s ". s'ta- U -wf-- h5-:b~ -7-r stf- r p- .
,Chck (1920) 831 913 590 702 785 Continued
C. a. (4 -day) 1090(7) 1208(7) 1127(4!) 1299(5) 1018(4) below
Applns. started with 5-50,'6 inf. Short staple cont,
Check (1920) 1050 709 863 603 783
C. a. (:-day) 14194(6) 1059(5) 1231(3) 895(6) 1158 375 48
'Time of day test '|


Check (1920)
C. a. midnight
(7-day)
C. a. evening
(7-day)


Ch,.ck (1920)
C. a. morning
(7-day)
C. a. noon (7-day)


Time of day test


1146

1443(3)
1533(3)


1146


1443 297
1533 387


Time of day test


Chck l(1920)
C. a. midnight
(7-day)
C. a. ovoning
(7-day)
C. a. noon (7-day)

Check (1920)


C. a. morning
(7-day)

Chock (1920)
C. a. midnight
(.:-day)
C. a. evening
(4-day)


1343


1343

1 54,.


1544(3)


1555(3)
1287(3)__


824

900(3)

695

982(6)

821(6)


Time of day test



Time of day test


201


1555 212
12S7 -56


900 73 9

695


982


287


8 2 1 126 18


1026'


1092(2)

1247(2)


1026

1092

1247


66

221


Trcat-ecnt, year, %





- 3-


Mreatmt, year a r s Increase
and interval s Yield per acre in each plot. :Averages : Per
between applns. s Number of effective applns. in parenthesis s yield :Pounds:t cent


Time of day test


Chock (1920) 780
C. a. noon (4-day) 1072(6)
Co a. morning
a. 1380(6)
_(4-dqay]_____ 150_6
Yhock (1 921) 819
M. m. mop (4'-day)* 789(5)


mop .,-day )
(.-day) *


Qhock
M. m.


(1921)
mop (6-day)*
/ -


876T(6)
1139(6)


922
1036(7)


1i571 (8)
1574..(8T) -


859
907(5)


7,80
1072

1380


819
789
.- -.. -. T..... 76-
1385


891
.972
1f r~~-


292

600


-30 -4

309 29


81


Go& ae VI-day)* 1168k7) lU48kb) ^ms .^.c^
ustod -with dew on
Plants (4-day) 1420(4) 1.120(6) 1420
Dusted after spray-
ing with water
(.4-day) 1480(4) 1;78(6) 1479 59 4
- "CohtrEl tests
Chock (1921) 880 729 1277 922 10i4 Continued below
C. a. (--day) 1307(13) 1346(12) 1936(10) 1475(10) 1312(10)
S- ... Control tests, cont.
Qhock (1921) 986 973
C. a. (4-day) 1063(11) ............ 1407 434 45
. a ear ly (4 -day 80 9 (4 ) 10 12 (3 ) ...... . 91 1
Q. a. at 10% inf.
S(4-day) 898(4) 1187(3) 1043 132 14
"hock (1921) 1307 (.) 1307
C. a. early (4-day) 1388(4) 1388 81 6
C. a. at 10%/ inf.
(4,-day) 1495(4) 1495 188 14
Chock (1921) 714 714-
C. a. early (4-day) 693(3) 693 -21 -3
c # _a* 2 oarly and
2 at 10% inf.
(4-day) 1233(4) 1233
C. a. early (4-day) 1348(4) 13.18 115 9
a. ...... at 1 o inf10..
(4-day) 1364(4) 1432() 1 4. .. 1393
C. a. 2 early and
2 at 10% inf. ,
(4-day) 1462(,1). 1386(4) 1..,2,, 31. 2
"C. a. spray (4-day) 2573(6) 1675(6) 174,3(6) 1166(6) 823(6) 1596
C. a. dust (4-day) 24,93(6) 1777(6) 1769(6) 1259(6) 804(6) 1620 24 2
OiTOi1921) .1298 ....... .. .- .. 1298
C. a. dust (4-day) 1445(6) 14145 147 11
C. a. sp-ay (4-day) 1438(6) /1438 140 11
Check (iql-) 1288 ...'1288
C. a. spray (.:-day) 2033(6) 2033 745 58


unccck 1922d)
C. a. (4-day)
Bob White (A-day)
Bob Whitc (8-day)


bUz
882(6)
783(6)
737(3)


1137(6)
1057(6)
937(6)


1010
920
837


* Variable, minimum given.


- - __,# -- k .







- atmrcnt, year, : : Increase
and interval .' Yield per acre in each plot :Average: : Per
bctw-icen applns. : Tumbcr of effective applns. in parenthesis : yield :Pounds: cent
Check (1922) 554 829 692
a. (4-day) 948(6) 942(6) 945 253 37
Bob TMite (8-day) 745(3) 834(3) 790 98 14
Cbeck (1922) 741 818 780
C. a. (4-day) 879(6) -1160(6) 1020 240 31
Bob White (4-day) 850(6) 115K(6) 1004 224 29
C,. a.. early (4-day) 596(5) 959(4) i062(6) 872
C. a. at 10% inf....
(4-day) 793(5) 1126(4) 947(6) 955 83 11
Check (1922) 721 795 758
a. early (4-day) 787(4) 911(6) 849 91 12
heck (1922) 988 ..988
Sa. early (4-day) 1091(6) 1091 103 10
Sa. at 10%o inf.
(4-day) 1082(6) 1082 94 10
;liock (1922) . .. 7110 740 . .. .
, a. early (4-day) 1054(6) 1054 314 42
do a. 3 early and 3
at 10% inf. .
(4-day) 1205(6) 1205 465 63
C. a; at 10% inf.
(4-day) 1249(6) 1249 -509 69
C. a. 3 early and 3 .
at 10% inf.
(4-day) 830(6) 1441(6) 1136
aC. a. at 10/o inf.
(4-day) 906(6) 1420(6) 1163 27 2
Check (1922) 424 4.87 456
?,. m. 2 mop and 5
"spray (7-day) 626(7) 649(7) 638 182 40
C. a. dust (4-day) 588(7) 746(7) 667 211 46
M. m. 2 mop and 5
spray (7-day) 623(7) 623
C. a. dust (4-day) 700(7) 700 77 12
Chcck (1922) 686 1233 960
M. m. spray (7-day) 941(6). 1430(6) 1186 226 24
C. a. dust (4-day) 1096(6) 1480(6) 1288 328 34
Control Tests
Oheck (1922) 486 535 562 533 523
Sa. dust (4-day) 1204(10) 1060(9) 898(9) 1031(10),1867(12)
:' Control tests, cont.
,hock (1922) 862 360 925 ... 598
1. a. dust (4-day) 966(7) 1066(l.1) 1206(9) 1100 502 84
'hock (1923) 1449. 1232 1329 806 1039
71a, method 1487(1) 1330(1) 1336(1) 731(1) 1033(l) Continued
a. (4-day) 1562(7) 1548(5) 1592(6) 924(4) 1327(4)
"huKck '4-101... 13938 1015, 90 85 1093
'la. method 1236(1) 1324(1) 1227(1) 965(1) 646(1l) 1131 38 3
a. (4-day) 1535(6) 1763(5) 1261(6) 1055(4) 1054(4) 1362 269 25
'7sock (1923) 88...5iii885 .. ..
La, method 1123 (l) 1123 238 272
*





- 5 -


Treatment, year, : \ Increase
and interval a Yield per acre in each plot. :Average: I ':.-
between applns. s Number of effective applns. in parenthesis : yield :Pounds: c:-.
Check (1923) 1075 916 544 1208 645
M. m. mop (7-day) 1053(7) 948(7) 544(8) 1306(7) 690(8) Continued
C. a. (4-day) 1239(5) 1019(6) 572(5) 1451(4) 831(6)
Check Ti92 3)- -' 1137 1117 949
D. m. mop (7-day) 1243(7) 1462(7) 1035 86
C. a. (4-day) 1268(6) 1518(4) ,1128 179 1.
M. m. mop (7-day) 700(7) 914(8) 807
C. a. (4-day) 9-80(4) 1013(5) ..997 190
Check (1i923) 1041 1041
M. m. mop (7-day) 996(7) _____996 -45 -
Che]ck (Average for all 3 plot tests in 866
M m. throughout 1921, 1922, and 1923)
season 987 121
C. a. dust 107.7 211- 24
Check (1942) 1404 1534 1326 1647 1478
C. a. (5-4-day) 1352(6) 1300(6) 1586(6) 1377(6) 1404 -74 -5
M. m. applied with
mopper (7-day) 1508(7) 1248(7) 1430(7) 1512(7) -1... .425 -53 -4
Check (1923) 938 831 1452 916 .Q1034
Weevilnip. Hop
(10-day) 934(5) 828(5) 1470(6) 950(7) 1045 11 1
C. a. (4-day) 1262(5) 1064(4) 1624(6) 1019(6) 1242 208 20
Check (1923) 1452 857 937 1250 12 ..
B oll-iWe-Go. Spray .
(10 or 15-day) 1526(6) 838(6) 1044(4) 1324(5) 1183 59 5
C. a. (4-day) 1624(6) 997(4) 1275(3) 1548(5) 3s62. 237 21
Check (1923) 943 1200 1115 1086
Hill's Mixture, .
mop (10-day) 937(6) 1221(7) 1044(8) 1067 --1-9 -2
C. a. (4-day) 1147(5) 1330(6) 1338(7) 1272 186 17
....... .Control tests "
Check (1923) 1544 1467 839 1069 1214
C. a. (4-day) 1722(5) 1648(6) 973(5) 1424(8) 1620(8)
G Control test, cont. "
Check (1923) 668 1134
C. a. ('-day) 825(9) 1369 235 21
Grasselli c. a.
(4-day) 1502(4) 946(5) 1224
Riches-Piver "
e. a. (,:-day) 1504(4)- 938(5) -. 1221. -
Check (1923) 395 951 673'
Special Grasselli
c. a. (Furnace
product (4-day) 589(5) 1419(6)' 1004- 331 49
Regular Grasselli
.o a. (4-day) 608(5) 1427(6) 1018 345 51
Special Grasselli
0* a. (Furnace
product (1-day) 14417(6) 1':7
Regular Grasselli
c. a. (4-day) 1635(6) 1635







Treatment, ycar, :
and interval
bct',:ccn applns.


6 -

Sis Increase
Yield per acre in coach plot. :Lveragce: Per
Number of effective l.pplns. in ..arcnthcsis : yield .Poundst ccnt


Chock (1924) 1074 854 1965 1298
Fla. method 1182(1) 892(1) 1547(1) 1207 -91 -7
1 pre-sq, m. m. +
c. a. at 10% inf. 1080(4) 94,3(1) 1964(1) 1329 .31 2
Chock (1924) 940 1329 2 1135
7ooCvilnip, mop,
(10-14 days) 917(10) 1310(10) 1114 -21 -2
C. ao (C-day) 922(4) 1321(4) 1122 -13 -1
Check (1924) 571 571
WoOevo, 1 mop and ..-
6 spray (10-day) 468(7) 468 -10Z -I1
C. a. (4-day) 547(3) '547 -24 -
Check (1924) 1374 1374
Woevilrid, mop ....
(10-day) 1327(9) K., 1327 -47 -3
C. a. (4-day) 1430(2) .1430 56 4
Check 4(1924) 1206 ... 1206
Boll-We-Go, spray ..
(15-day) 1253(6) 1253 47 4
C. a. (4-day) ..1253(3) ...1253 47
Check (1924) 1206 1206 "
Cravrford and Luke,
1 mop and 6 spray
(10-20 day)..,- 1214(7) 1214- 8 1
C. a. (4-day)' 1253(3) 1253 .. -C47
C. a. (4-day) 1920(4) -1920: .
Barium ar senate
(4-day) 1919(4) _________________________1919. -1 0
Chock (1924) 1489 '
Solvent 75 applied
to soil (6-day) 1459(2) 1459 -30 -2
C. a. (4-day) 1449(2) 1449 -40 -3
Chock (1924) 980 980
Berry b. w. ext., ....
spray 845(1) 845 -135 -14
C. a. (4-day) 1098(3) 1098 118 12
.Check (1924) 706 706
H '. Tucker's
remedy, sprinkler
pot, (35-day) 794(2) 794 .. 88 12
C. a. (4-day) 757(2)i .. .... 757 .51 7
Chock (1924) 2059 2059
r.rmor' s Joy, spray
(7-day) 1705(8) 1705' -?.3.4 -17
Ca. 1497(1), 1497 -562 -27
Chock (1924) --- 1871 1871
P. 'R. Saundors'
remedy, spray
(10-day) 1642(4) 1642 --229 -12
C. a. (4-day) 1805(3) 1805 -'66 -,1





- 7 -


*T3eatmont, year, i
and interval S
betwoon appins.. S


CHock (1924) :
Haavy applns., 12
Ibs. of c. a.
(i.4day) "


Yi.eld. per acre. in aach plot.
number of effective applns. in arcnthesis
1751


1798(2)


: Increase
sAverage
: yield tPounds! cent


1751


1798


Light applns., 5
Ibse of c. a
(14-day) 1466(2) 1,'.- 66 -285 -16
Chock (192,) "361 1961
C." a. early 2053(1) 053 9 2 5
C. a. 1 'early and .. ... .
.:.at 10% dinf.
S(4-day) 2165(6) 2165 204 10
Cheok Tl(92. '--37 837
M. m.'mop early 680(1) 680 -157 -18
M. m., 1 mcp early
and c. a.,' 6 at '....
lo% ('f-day) 1095(7) 1095 258 31
Chec.k (1924) 1064 1064,
M. m. mop, early
(7-day) 114(2) 8
3. a., early
(7.-day) .1033(2) 1033 -31 -3
3h'ck (1924)" 1185 1T92 '1223 1300
,'hipman's (Mrs.
Smith) remedy,
applied to soil 1029 1392 1450 1290 -10 -7
,hoek (1924) 11I00 -- 7-5 1223
r. H. Morgan's ... ..
remedy, applied to
planting sood 1215 1505 1360 137 11
'heck t1925) 957 1698- 1328
olvent 75, applied
to soil (14-day) 935(2) 1721(2) 1328 0 0
S.a. (.-day) 1128(3) 1856(4-) 1.:192 164 12
hock- (192 5 ) 2032- 217 -- 1963 ...... 756_
a. + 10-15% of
Laboll's sticker
(4-day) 2050(5) 2310('4) 1902(,) 2087 31 2
a. (,i-day) 2123(5) 2561(4I) 2360(.1) 2318 292 14
lock (1925) 2251---- -1715 7183
a., special
2 Grasselli (TFurnace
7 product) (4-day) 2602(5) -2172(5) 2387 401 20
a. (4-day) 2577(5) 1902(5) 2240 257 .-13
iock (1925) 120"6 2379 1793
Sodium fluosili-
eato (4-day) 121,1(6) 2338(3) 1776 -17 -1
a. (4-day) 1428(6) 2200(3) 1614 21 1
ock (1925) 2638- 263s8
.icium fluosilicato
compound (4-day) 2324-('.) 22.2 -31, -12
a. (4-day) 2978(4) 297 1 310 13


. .. .. ii






8
., .. 8 -m

Treatment, yeara, : : Increase
and interval : Yield per aqrc in each plot :Average: i Per
between applns. : Number of effective bpplns. in parenthesis : yield :Pounds: con
Check (1925) 1447 1447
C. a. early 1521(1) 1521 74 5
C. a. 1 early and 12 .
c. a. at 10% inf.
(4-day) 1517(6) 1517 ,70 5
Check (1925) 1792 1792
M. n. mop, early 1707(1) ..1707 9 <-85 -5
Check (1925) 1538 1548 1534 1627 1562
C. a. carly 1396(1) 1417(1) 1494(1) 1822(1) 1532 -30 -2
Check (1925) 1800 1702 1751
U. m. early; mop 1702(1) 1594(1) ... 1648 -103 -6
M. m...early, ,mop
(7-day) 1955(2) 1778(2) 1867 116 7
Check (1925) 1503 1333 1418 ,
M. n. early, mop
(7-day) 1515(2) 1248(2) 1382 -36 -3
C. a. early (7-day) 1523(2) 1434(2) 1479 61 4
Check (1925):. 851 1339 1095.
C. a. 2 early
(7-day) "966(2) 1478(2) 1222 ,127 12
Check (1925)- 2292 .. .2292 '
Howard duster,
day (4-day) 3121(5) -121 '' 829 36
Howard duster, -
night (4-day) 2951(5) 2951. 659 29
Check (1925) 1777 1777'"
Niagara duster,
day ('-day) 1977(4) 1977 200 11
Niagara duster 2 2 6 2
night (4-day) 2141(4)___214 364' 2C
Check (1925)' 2409 2140 2275
Howard duster,
day (4-day) 2691(5) 2440(4) 2566. ..291 1
Niagara duster,
day (4-day) 2381(5) 2265(4) 232'3 48
Chock (1925) 2260 1975 2118
Howard duster,
night (4-day) 2403(5) 2150(4) 2277 ... 59 8
Niagara duster, '"
night (4-day) 2319(5) 2060(4) 2190 '72
Check (1925) 193 19'63
Howard duster,
7 rows per trip,
night (,r-day) 2718(5) 2718 755 31
Hovward duster,
14 rows par trip,
night 2158(5) 2158 195 D
Ch.ck: (1925-T--' 1,i16 .905- 1661-
B. Q. spray
(21-day) 1593(4) 1956(4) 1775 114





-9 -


Treatment, year, :
and interval
betvwoen applns. I


... : : Increase
Yield ydr acre in each plot. :Avcrage: : Per
Number cf effective applns. in parenthesis : yield :Pounds: con


Check (1925) 1757 1757
Slazum, 1 mop and -
7 spray (10-day) 1797(8) 1797- 40 2
C. a. (4-day) : 177'8(2) 1778 21 1
Check (1926) 1322. 10035 --.. 1163
Cr-awford' s"and
Luke' s remedy,
2 mop and 4-
spray (15-day) 1372 (6) 949(6) j.161 -2 0
C. a. (4--day) 1624(3)' 1185(5) 1405 242 21
Cheock (1926). 183 I 285 1
Slazum, 1 mop and .
8 spray (10 day) 1662(9) 1277(9) 1470 '"'.85 14
C. a. (-day) 1715(3) 1407(3) 1561 276 21
hec k (1926. .-.... 1428 1528 1478
Wcathersby cotton
spray (10-day) 1359(3) 1023(4) 1191 -287 -19
C. a. (4-dqy) 1587(5) 1950(7) 1769 291 20
Check (19e6)- 656 ---- 656--.
Hill's mrixtur.e.,
mrp '(10-day) 718(7) 718 62 9
C. a. (4-day) 908(6) 908 252 38
Check (19-6) 1119 --- 1119.-
Weovilnip, 6 mop '
and 3 spray .
(10-day) 1171(9) 1171 52 5
C. a. (4-day) 1337(4) 1337 218 19
Check (1926) 857 1273 .... '1065
Boll-We-Go, spray -,
(20-day) 922(l) 1367(4) 1145 80 8
C. a. (4-day) 1093(4) 1548(4) 1321 256 24
Check (1926) 1088 1341 1215
Boll-'"c-Ex, spray
.(12-day) 1085(6) 1295(6) 1190 -25 -2
C. a. (4-day) 1950(7) 1875(8) 1913 698 57
Check (1926)' 1528 1154 1341
Farmer's Joy, .... :
spray, (-!-day) 1208(7) 1539(5) .1374 33 2
C. a. (4-day) 1752(7) 1691(5) 1722 381 28
Control tests
Check (1926) 633 1224 962 1227 1390 1087
C. a. (4-day) 2194(11) 2056(11) 19.l(10) 1600(10) 2100(11) 1829 742 68
Check (1926) 10895 10)[9 1e089.3
Sodium fl-uosi li-
cate (4-day) 1072(7) 1123(7) 1078 -11 -1
C. a. (4-day) 126,4 (7) 1.4'1,1 7) 13: 255 23
Check (1926) 677 677
Dr. C, Boyd's rem-
edy, applied to
seed 653 653 -2 -







-Treatni_ nt-,-"y- -
Tre atmnt, 'year,
and interval
botveen applns,


* Yield per acre in each plot. .
I Number of .effective.applns. in.parehthesis t


S: Increase
Average: s Per
yield :Pounds: ceni


Pheek (l927)
0. a. J4-day)


Control tests, (Waverley, La.)
489 764 765 823 1190
842(5) 1378(7) 1308(8) 1255(6) 1593(6)


S Control tests, cont.
Oqhock (1927) 971 800 1066 -
C. a. (4-day) 1372(5) 1235(5) 1282(3)
Control tests TTalluah, La.)
Check (1927) 1689 1311 856 1541
O. a, (4-day) 2077(7) 1358(6) 2105(6) 2163(7)
Control tests, cont.
Chock (1927) 1507 1144 767 848
P .- (A-,lI^ 1Ri9C~ qr q7(R9C i nnoC; hO iRi cfttr


859
1283


424


1629
2022(6)


1255
1 IgQ


Lu t-


I



*


f I


Chook (1927) 1354 894 ITS24
Chomioal Warfare "
special c. au
(4-day) 1530(5) 960(3) 1245.. 121 11
C. a, (4-day) 1674(5) 1109(3) .1392 268 24
Check (1927) 1232 1331 1282
Chemical Warfaro
sodium fluosili-
cate (4-day) 1200(4) 1379(4) 1290 8 1
C. a. (4-day) 1415(4) 14,62(4) 1439 157 12
Check (1927) 1305 1305
Chemical 7Warfare
Sbarium fluos.li- 1 1 2
cate (4-day) 1529(5" 1529 224 17
-C. a. (4-day)' "1643(5) 1643 338 26
Cheek (1928) 1814 1967 1891
Ropulso, spray
(4l-day) 1737(6) 1728(7) 1733 -158 -8
C, a. (4-day) 22413(6) 2385(7) 2314 423 22
Check (1928) 134,16 ,1346
Moritol, dus .. '
(4'day) 1868(8) 1868 522 39
"C."a.(4gday) 2888(8) 8 2888 1542 115
Check (1928) 1313 1369 11 04 141 982
Chemical Warfaro
barium fluosili-
catc (4-day) 1239(3) 1387(6) 1140(5) 304(8) 1018 36 4
C. a. (4-day) 1366(3) 1518(6) 1274(5) 783(8) 1235 253 26
Check (1928) 1292 1428 887 198 9.51
Chemical Warfare
special c. a.
(4-Iday) 1717(-) 1625(4) 1206(6) 522(8) 1268 317 33
C. a. (4,rday) 154.15(.) 1648(4) 1.211(6) 812(8) 13.04 353 37"
Chcck (1928) 1407 849 100 785 '
Chomicctl Warfare
sodium fluosilit-
cato (4-day) 1590(6) 987(5) 271(8) 949 164 21
C. a. (4-day) 1623(6) 1330(5) 494(8) 1149 364 46





- 11 -


Trea tmcnt, y
and interval
between appi


ear : Increase
s Yield per acre in each plot. sAverages s Per
ns. : Numibor of effective applns. in parenthesis : yield :Pounds: ceni


Check (1928) 784
M. m. mop, 3 early
(5-day) 871(3)
1. m. inop,-1 early
and c. a. dust at
10% inf. (4-day) 1281(7)


Chock (1928)
H. m. mop, 1 early
and c. a. dust at
10% inf. C4-day)
C. a. at 10% inf.
(4-day)


1078


802


1055


880

927


855(3) 1054(3)


1077(7) 174=7(7)


869


47 5


13S8 488 55
1021


S124


1431(7) 1245(6) 1505(6)


1364(6) 1279(6)


1394

1382


1502(6)


370

358


Chq 6Tc (1928)
C. a. (4-day)


1589
2033(4)


868
932((


Control tests
681
0) 961(7)


693
958(8)


601
1145(11)


Control tests, cent.
Check (1928) 1229 936 *1393 '..1319 400 971
C. b:**-(4-day) 1629(5) 1229(11) 1839(5)' *1905(6) 1082(10) 1371 400 41
Control tests
Chock (1929) 1753 1694 *1454 .'1436 1680
C. a. (4-day) 1685(5) 1765(6) i426(7i) 1419(7) 1948(7)
Control tests, cont.
Ch ck (1929) 1519 1562 1276 1021 1488
!CI' h;a '(4-day) 1621(8) 1761(7) 1972(9) 1360(8) 1662 174 12
ChQck (1929) 1163 2425 1811 1533 1733
M.'. mop, I early
: qnd c. a. at 10%
inf. (4-day) 1368(5) 2407(6) 1715(7) 1641(7) 1783 50 3
O. a. at 10% inf.
(4-day) 1305(5) 2541(5) 1982(6) 1713(6) 1885 152 9
Cho k (1929) 1252 "2277 120 0GO 1428 1539
M. m. mop, early
(5-day)- 1276(3) 2249(3) 1266(3) -1423(3) 1554 15 1
M. m. mop, 1 early
and c. a. at 1O :'
inf. (4-day) 1355(5) 2321(5) 1375(6): 139g(6) 1612 73 5
Chock (1929) 1584 1267 1559 1145 1900
C.homical warfaree
special c. a.
(4-day) 1604(3) 1424(6) 1680(5) 1146(6) 1881(4) Continued below
--C. a. (4-day) 1632(3) 1444(6) 1687(5) 1196(6) 1887(4) ____ ___
Check (1929) 1500 1241 1-t457
Chemical ";arfarc
special c. a.
(4-day) 1554(5) 1301(4) 1513 56 4
-C. a. (4-day) 1597(5) 1268(,4) 1530 73 5
Chock (1929) 2118 1700 14,152 1898 1792
Sodium fluosili-
cato (4-day) 2121(3) 1728(5) 1358(6) 1995(5) I,01 9
C. a. (4-day) 2206(3) 2147(5) 1569(6) 2079(5) 20C'0 208 12







Treatment, year,
: nd interval
between aopplns.


-..12 -


S- Increas
S Yield per acre in each plot. :Average: : Pe
: lumber of effective applns. in parenthesis : yield :Pounds: ce


Check (192.9)
Weev-L-Woe (4-day)
C. a. (4-day)
Check (1929)
Calgreen (4-day)
C. a. (4-day)


'Check (1930)
C. a. (4-day)


Check (1931)
P. g. 25%-c. a. 75%
(4-day)
C. a. (4-day) ,


Check 1'i-51)
Sodium fluosili-
cato (4-day)
C. a. (4-day)


1591
1904(4)
1894(4)


. 1591
1904,
1894


1357 1574 1315
1420(5) 1828(8) 1458(4)
1304(5) 2032(8) 1543(4)
Control tests
1159 2040 660 663
1133(4) 2443(4) 777(4) 592(4)____
2114 1689 2032


2539(6)
2786(6)


2015


2080(6)
2311(6)


2507(7) 2496(7)
S2637 (7.) 2640(7): .
2475 1701


2496(5)
2758(5)


1917(6)
2138(6)


1415
S1569
1626


154
211


.1131 -
1236 105
1946


-.. 25146
2688


569
743


. 2064 ..


2164
2402


100
338


SControl tests
Check (1931) 1646 2273 2226 2157 1643
C.. a. (4l-day) 2208(9) 2673(9) 2737(9) 3011(11) 1973(7) .
Control tests, cont.
Check (1931) 1754 1940 1652 1553 2026 1885
C. a. ('-day) 2181(9) 2264(6) 2715(9) 2443(9)-. 2635(8.) .2484 599
Chock (1931) 1727 165,1 1521 1634
Calgrecn (4-day) 2465(7) 2646(7) 228.9(7)' 2466 832
C. a. (."4-day) 2239(7) 2923(7) 2338(7) 2500 866 C
Chock (1931) E;-85 1783 "182177 ,.81b5
Lucas -Kiltone '
c. i. (4,-day) 2054(7) 212i(7) 2773(5) 2316. 501 2
C. a,. (4-day) 2118(7) 2179(7) 2673(5) 2323 508
Check (1932) 1105 819 962
Grassolli green ., .
c. a. (4-day) 1554(8) 2041(8) 1798 8'36 .E
Grassolli white
c. a. (4-day) 1592(8) 1952(8) -1772 ..... 810,"
Check (1932) 1177 993 1235
Niagara pink
co a. (4-day) 1650(7) 1702(9) 1676 441
Niagara white
c. a. (4-day) 1615(7) 1688(9) 1652 417
Chock (1932) 804 1243 102-4
General green
c. a. (4,-day) 1496(8) 1947(10) 1722 698 6
General white ,.
c. a. (4-day) 1544(8) 1895(10) 1720 696'
Chock (1932) 1521 1521
Commercial black
c. a. (4-day) 1775(8) 1775 254 '
Commercial white
c. a. (.:.-day) 1787(8) 1787 266 1


. 2
3








-13-
Treatment, year, : : Incrcaso
and interval s Yield per acre in each plot. :Average: : Fer
between applns. I Number of effective applns. in parenthesis yield :Pounds: cent
Check (1932) 1696 1696
Lucas-Kiltono black
c. a. (4-day) 1867(7) 1867 171 10
Lucas-Kiltone green
c. a. (4-day) 1837(7) 1837 141 S
CReck (1932) 1598 1598
LUcas-Kiltono green
Sc.o a. (4-day) 25.80(8) 2580 982 61
Lucas-Kiltone white
c. a. (4-day) 2500(8) 2500 902 56
Check (1932) (S.ummary of yields following applns, 1251 '
Colored c. a. of colored and urcolQorcd calcium
(4-day) arscnates, .1932). 1846 595 48
White c. a. (4-day) ." 1823 572 46
Chock (1932) 507 1079 793 ,
C. a. after migra-
tion (4-day) 2126(13) 1896(9) 2011 1218 154
Check (1933) 1012 1012
Cultivator duster
(9-day) 1270(4) 1270 258 25
Cultivator duster
(9-day) 1181(4) 1181 169 17
Cultivator duster
(9-day) 1047(4) 1047 35 3
C. a. (,--day) 1312(4) ________________________ 1312 .300 30
SChock (1933) 1280 101f8 846 846 998
P. g. 25%-c. a. 75%
dry mix (4-day) 1876(9) 1554(9) 1208(8) 1321(8) 1490 492. 49
P. g. 25%-c. a. 75%
wet mix (4-day) 1767(9) 1479(9) 1516(8) 1429(8) 15-18 550 55
C. a. (4-day) 1685(9) 1550(9) 14.133(8) 1263(8) 14-90 4-92 149
Chock (1933) 936 5,54 795
Copper arsonitc 20%
c. a. 80% (4-day) 1992(5) 827(8) 1410 615 77
Copper arscnitc 25%
e. a. 75% (4,-day) 1581(5) 904(8) 12-.3 -I.- 56
P. g. 25%-c. a. 75%
(4-day) 1288(5) 891(8) 1090 295 37
3. a. (4-day) 1468(5) 8,11(8) "1155 3,0 15
Mock (1933) 811 811
. a. and lime lIl
(4-day) 1197(6) 1197 386 48
Sa. and lime 1:2
(4-day) 1031(6) 1031 220 27
_. a. (4-day) 1307(6) 1U07 496 61





14 -

Trctrmcnt, year, : : s Increase
and interval : Yield per acro in each plot. :Average: : P6
bctvccn applns. s Number of effective applns. in parenthesis : yield :Pounds: cec
Check (1934) 1132 1407 887 1142
C. a. and lime 1:1
(4-day) 1711(10) 1979(9) 944(5) 1545 403 3!
C. a. and lime 1:2
(4-day) 1548(10) 1813(9) 926(5) 1429 287 2
C. a. (-1-day) 1548(10) 2006(9) 957(5) 1504 362 3
Chock (1935) 1253 1212 1327 1264
C. a. and lime 1:1
(4-day) 1167(6) 1084(6) 1569(6) 1273 9
C. a. (4-day) 1181(6) 1700(6) 1581(6),s 1487 223 18
Check (1936) 2304 1692 2123 2381 2125
C. a. and lime 1:1
(4-day) 2793(5) 1660(3) 2294(4) 2746(5) 2373 '248 12
C. a. and- sulfur ... ...
Isl (4-day) 2820(5) 1650(3) 231.9(4) 2624(5) 2353 228 13.
C. a. (4-day) 2599(5) 1658(3) 2245(4) 2587(5) 2272 147
Chock (1936)* 2381 2496 2207 2434 2380
C. a. "and lime 1 1. ..........
(4-day) 2680(8) 2404(8) 2723(8) 2368(8) 2544 164 7
C. a. and sulfur
I:1 (4-day) 2473(8) 2494(8) 2707(8) 2732(8) 2602 222 9
C. a. (4-day) 2629(8) 2539(8) 2826(8) 2566(8) 2640 260 111
Min. sig. dif. _____ __152
Check (1937) 2783 2088 1954 2275
C. ao and limo 1:1
(4-day) 2558(5) 2395(6) 1984(6) 2312 37 2
C. a. and sulfur
1%1 (4-day) 2712(5) 2225(6) 1938(6) 2292 17 1
C. a. (4-day) 212954(5) 2157(6) 2319(6) 2477 202 9
Chock (1937)* 2657 2042 1931 2338 2353
C. a. (4-day) 2016(7) 2573(7.) 2089(7) 2346(7) 2169(7)
C. a. and lime 1I1
(4-day) 2576(7) 1764(7) 2462(7) 2243(7) 2297(7) Continued
C. a. and sulfur
1:1 (4-day) 2297(7) 2820(7) 2201(7) 2346(7) 2179(7) below
C. a. and sulfur
1-2 (4-day) 2402(7) 2606(7) 2704(7) 2096(7) 2214(7)
C. a. and sulfur
1:4 (4-day) 2398(7) 2265(7) 2469(7) 2259(7) 2188(7)
Chcck (1937)* 2229 2258
C. a. (4-da,) 2327(7) 2253 -5 0
C. i. -ind lime 1i1
(4-day) 2133(7) 2254 -4 0
C. -L. and sulfur
1:l (,1'-day) 2466(7) 2385- 127 6
C. a. -,nd sulfur
1:2 (4-day) 2421(7) 2407- 149 7
C. a. and sulfur
1:4 (,-day) 1866(7) 2241 -17 -1
1/40 acre plots, Latin square.





- 15 -


Treatmont, year,
and interval.
bectCven apples.


Yield per acre in each plot.
Nurbcr of effective applns. in parenthesis


: : increase
:Avera r,-- : Per
: yield :Pounds: cor--


Chock (1936) 2529 2303 2492 2441
P. g. 10%-c. a.
90% (4-day) 2697(6) 2380(6) 2277(4) 2451 10
C. a. and sulfur
1:2 (4-day) 2853(8) ?658(6) 2569(4) 2693 252 10
C. a. (4-day) 2626(6) 2796(6) 2513(4) 2645 204 8
Check (1936) 2818 2552 1317 1575 2066
C. a. and sulfur
1:2 (4-day) 2786(4) 2716(4) 1477(4) 1744(4.) 2181 115 6
C. a. (4-day) 2714(4) 2448(4) 1342(4) 1882(4) 2097 31 2
Check (1.936) 2204 1527 2840 1250 1591 1882
C. a. and sulfur
1:4 (4-day) 2296(5) 1643(4) 3006(4) 1451(4) 1864(4) 2052 170 9
0. a. (4-day) ____ 2520(5) 1843(4) 28441(4) 1196(4) 1805(4) 2042 160 9
Chock (1937) 1857 1842 2391 2030
C. a. and sulfur
1:2 (4-day) 1953(5) 2180(5) 2277(5) 2137 107 5
C. a. and sulfur
1:4 (4-day) 1846(5) 2189(5) 2245(5) 2093 63 3
C. a. (4-day) 1881(5) 1921(5) 2407(5) 2070 40 2
Check (1937) 2563 2403 2483
C. a. and sulfur
1S2 (4-day) 2267(3) 2398(3) 2333 -150 -6
C. a. (4-day) 2605(3) 2316(3) ...2461 22 -1
Chock (1938) 1339 2269 2015 1874
C. a.'and sulfur
l I, --6 Ibs. -
(4-day) 1803(8) 2308(6) 2048(5) 2053 179 10
C. a. 2-3 Ibs.
(4-day) 1685(8) 2295(6) 2098(5) 2026 152 8
C. a. 4-6 Ibs.
(4,-day) 1731(8) 2517(6) 2lF.,(5) 2141. 270 1.-
Chock: (193.) 2269 19,'3 16,01
C. a. and sulfur
1:1, 4-6 Ibs.
(4,-day) 2324,(6) 2057(7) 1718(7) 2033 89 5
C. a.'and sulfur
1:1, 12 lbs.
(4-day) 2353(6) 2226(7) 1926(7) 2168 224 12
C. a. and sulfur
1.2, 12 lbs.
(4-day) 2-.-21(6) 2216(7) 1799k7) 21.15 201 1i
C. a., X'-6 lbs.
(4-day) 25,143C) 2005(7) 1521(7)9 1.215 5 21 11
Chock (1938) 1761 1734 2167 12,0
C. a.. + 1 appln.
sulfur ('-day) 1713(F,) 212 (P) 2274 (7) 20379 135 7
C. a. + 3 applns.
sulfur (4,;-day) 1829(V) 2127 () 21'(7) 2039 135 7
C. a. (4-day) 1955(c) 2053(') 225 2 2 0 C 1C5 10









Treatment, year,
and interval
betvieccn applns.


: Incrcoas
Yield per acre in each plot. :Avcrages t P;
Number of e'ffectivc applns. in parenthesis : yield :Pounds: Q


Checl: (193G)*
C. a. + 1 appln.
sulfur (I-day)
C. a. + 2 applns.
sulfur (:-day)
C. a. + 3 applns.
sulfur (1-day)
C. a. and sulfur
1:1 (4-day)
C. a. (-dy)
Chock (1938)*
C. a. + I appln.
sulfur (4-day)
C. a. + 2 applns.
sulfur (4-day)
,C. a. + 3 applns.
sulfur (4-day)
C, a. 'and sulfur
1:1 (4-day)
C. a. (4-day)


2110


2015 19i7


2095


1604(6) 1734,(6) 1507(6) .1993(6)

1708(6) 1914(6) *2255(6) 2146(6)


1814(6) 20412(6)


1152(6)
1676(6)


1811


..-2342 (6)

2618(6)

2513(6)

.2606(6)
2034(6)


1903(6)
1309(6)


1927(6) 1752(6)


2236(6)
204-1(6)


2022(6)
2038(6)


1806

2177(6)

1876(6)

1882(6)

1687(6)
2296(6)


Continued

bo low


1967


1893 -74


2086

1988

1934
1915


119

21

-33 -
-52


Check (1939) 2580 2650 2670 2290 1920
C. a. (4-day) 2740(8) 3000(8) 25190(8) 2520(8) 2480(8)
C. a. + 3 applns .... Continued
sulfur (4-day) 2750(8) 3170(8) 2710(8)" 2540(8) 2310(8) l
C. a. + 1 appln. below
sulfur (4-day) 2860(8) 3000(8) 2850(8). .29650(8) 1810(8).
Chock (1939) 2110 1920 2020 1220 2153
C. a. (4-day) 2040(8) 2140(8) 2040(8) 1560(8) 2337 184
C. a. + 3 applns.
sulfur (4-day) 2060(8) 2270(8) 2110(8). 1490(8) 2379 226 1
C. a. + 1 appln. .
sulfur (4-day) 2490(8) 2040(8) 1890(8) 1500(8) 2377 224 1
Min. sig. dif. ,. ...... 170
Check (1939) 2090 2220, 2160 1980 2030 2096
C. a. (4-day) 2350(6) 2040(6) 2240(6) 2070(6) 2220(6) 2184 88
C. a. and sulfur
1 (4-day) 2360(6) 2160(6) 2120(6) 2390(6) 2000(6,) 2206 110
Sulfur (7-day) 2070(4) 2030(4) 1900(3) 1900(3) 1790(3) 1938 -158
C. a, and sulfur
12 (4-day) 1990(6) 2400(6) 1870(6) 2020(6) 2000(6) 2056 -40
Check (1939) 2250 2150 2100 1980 2120 .
C. a. and sulfur
1:2 (4-day) 2380(4) 2130(4) 2060(4) 1870(4) 2110 .-10
C. R. and micron-
izcd sulfur 1:2
(.4'-d-,y) 2250(4) 194,10(4) 2020(4) 1880(,4) 2023 -97

* 1/40 acre plots, Latin square. "






17

STroatmcnt, year, S : Increase
apd interval : Yield per acre in each plot, :Averae': 7 : 7er
Sbptwecn applns. : Numbcr of effective applns. in parenthesis : yield sPounds: cent
Chock (1939) 1980 1930 2050 2010 1993
C. a., 4-6 lbs.
(4-day) 1960(4) 2000(4) 2190(4,) 2170(4) 20E0 G87
C. a., 2-3 lbs.
(4-day) 2060(4) 2000(4) 2110(4) 1970(4) 2035 42 2
C. a. and sulfur 1:1,
4-6 Ibs. (4-day) 1860(4) 1990(4) 2060(4) 1980(4) 1973 -20 -I
Chock (1933) 792 7T2
Sodium fluoaluminate
(6 lbs.)I (4-day) 781(7) 781 -11 -i
Sodium fluosilicato
(9 lbs.) (4-day) 727(7) 727 -65 -8
Sodium fluosilicato
5-lbs.) (4-day) 657(7) 657 -135 -17
Barium fluosiliqatp
(5 lbs.) (4-day) 823(7) 823 31 4
0. a. (5 lbs.)
S(4-day) 1077(7) 1077 285 36
Chock (1942) 1620 1635 1380 1695 1770 1620
C., a. (5-day) 1365(4) 1365(4) 1320(4) 1545(4) 1620(4) 1443 -177 -11
Sodium fluosilicate
Sand sulfur 1:1
(5-day) 1575(4). 1065(4) 1260(4) 1635(4) 1440(4) 1395 -225 -14
Sodium fluosilicato
and sulfur 1:3
(5-day) 1920(4) 1215(4) 1485(4) 1815(4) 1725(4) 1632 12 1
Sodium fluosilicate
and sulfur 1:7
S(5-day) 1605(4) 1170(4) 1845(4) 1695(4) 1695(4) 1602 -18 "1
( 1934) .... < '
P, g. 25%-limo 756%
(4-day) 1668(10) 1255(11) 1871(71 1598
P. g. 33-1/3%-lime
66-2/3% (4-day) 158C(I0) 1164(11) 2125(7) 1626
P. g. 50%-lirro 50%
(4-day) 1624(10) 13Pn6(11) 16.04(7) 1538
C. a. (4-day) i1751(10) 12-(11) 1645(7) 1555
Chock (1934) G 983 110 96
US' 983 1100 0
Lime (4-day) 670(7) 88-(7) 1130(5) 896 -10 -1
Chock (1934) 1547 1517 '
Thiodiphonylamino
.I(Phcnothiazinc)
10%, sulfur 90%
(4-day) 1607(5) 1607 60 *i
C. a. (4-day) 1757(5) 1757 210 1:





- 18 -


Treatment, year, s
abd intcerve l- a.
between, aDulns. .


s Increase
Yield per acre in each plot. sAverags ..... Per
Number of effective aeolns, in parenthesis t yield sPoundsg cent


, Chock (193.) 1085 1218 923 1075.
Derris and diluent, "
ea rot. (4-day) 1220(7)
Derris and diluent, Ol -64 -6
1% rot. (4-day) 929(8) 11 64
Derris and diluent, .
2% rot. (4-day) 885(7) J
C. a. (4-day) 1567(8) 1474(7) 1653(7) 1565 "490 46
Gheok (1934) 1582 1338 1217 1379
Copper arsenite 20%
c. a. 80% (4-day) 1718(10) 1752(10) 1593(8) 1688 309 22
C. a. (4-day) 1618(10) 1652(10) 1544(8) 1605 226 16
Check (1934) 1365 1190 1037 1197
C. a. early morning
(4-day) 1444(6) 995(6) 1373(6) 1271 74 6
C. a. midday
(4-day) 1269(6) 1291(6) 1117(6) '1226 29' 2
C. a. late after-
noon (4-day)-. 1444(6) 996(6) 1107(6) .. 1182 -15' -1
Check (1935) .. 1718 765 849 1111 ... ..
C. a. ,early morning
(4-day) 2009(7) 715(6) 905(7) 1210G 99 9
C. a. midday
(4-day) 2122(7) 778(6) 949(7) 12'8'3 172 15
C. a. late after-
noon (4-day) 1874(7) 768(6) 929(7) 1190 79 7
Check (1937) 1693 2186 1968 2074 1662 .
C. a. early morning
(4-day) 2209(6) 2150(6) 2166(6) 2526(6) 1701(6)
C. a. early morning
(6-day) 2287(4) 2761(4) 2213(4) 1955(4) 1854(4) Continued
C. a. early morning below
('8-day) 2511(3) 2054(3) 2108(3) 2037(3) 1499(3) "
C. a. midday '
(4-day) 1571(6) 1943(6) 2591(6) 1978(6) 1876(6) (1/20 a6re plots)
C. a. late after-
noon (4-day) 1842(6) 2476(6) 1954(6) 1894(6) 2302(6),


Check (If'37)
C. a. early morni
(4-day)
C. a. early morni:
(C-day)
C. a. early morni
(-.-d1y)
C. a. midday
(' -d.ay)
C. a. late a:fter-
noon (4-day)


ng

rng

ng


2183

156,! (6)

139 6 (d.)

1C55(3)

1361(6)

1,:.4 (G)


(1/20 acre plots)


1961

2053

2078

1977

1887

1994


92

117

16

-74

33




- 19 -


Treatment, year, :
and interval
b6tweoen applns. :


Clock (1938)
C. a. early morning
(4-day)
C. a. midday
(4-day)
C. a. late after-
noon (4-day)


Chock (1938)
q. a. early morning
S(4-day)
0. a. early morning
(6-day)
4*.. early morning
(8-day)
C, a. midday
* (4-day)
C. a. late after-
noon (4-day)


a Incrcc
Yield per acre in each plot. :Averagc: : Per
Number of effective applns. in parenthesis : yield :Pounds: ccrnt

16"0 1827 2380 1962

1876(6) 2048(6) 2422(6) 2115 153 8

1709(6) 1828(6):.- 2417(6) 2011 4,9 3

1893(6) 2023(6) 2502/6) 2139 177


1749

1514(7)

1723(5)

2348(4)

1547(7)

1593(7)


2187

1788(7)

1770(5)

1652(4)

2310'(7)

1990(7)


1881

2451(7)

1620(5)

2107(4)

2096(7)

2176(7)


2342

1988(7)

2266(5).

1946(4)

1976(7)

2011(7)


2070

1990(7)

2063(5)

19C.6(4)

2275(7)

2578(7)


Continued
below

(1/20 acre plots)


Chock (1938)
C...a. early morning
(4-day)
C. a. early morning
(6-day)
C. a. early morning
(8-day)
C. a. 'midday
S(4-day)
C. a. late after-
Sno br(-day)


2093

2090(7)

2729(5)

2317(4)

2324(7)

1954(7)


2054

1970

2029

(1/20,acre plots) 2053

2088

2050


-84 -4

-25 -1

-1 0

34 2

3 -4 0


CGockc (1939)
C. ao early morning
(4-day)
C #a. 'midday
. (4-day)
C. a. late after-
noon (4-day)
Nin.* sig. dif.


1840

2080(7)

2460(7)

2110(7)


2390

2930(7)

2610(7)

2570(7)


1340

1650(7)

1600(7)

1710(7)


1680

2570(7)

2380(7)

2280(7)


1813

2308

2263

2168


495

450

355
330


qhcck (1940) 1210 1110 1170 12 1230
C. a. early morning
(K-day) 1880(7) 1640(7) 17C0(7) 1960(7) 1790(7)
C. a. midday
(4-day) 1760(7) 1850(7) 2150(7) 20.0(7) 1CGO60(7) Continued
C. a. late after- bc lovw
noon (4-day) 1730(7) 1860(7) 1690(7) 1930(7) 1570(7)
Chock (19,140) 1320 1222
C. a. early morning
(4-day) 1960(7) 1.'37 G15 50
C. a. midday
(4-day) 1870(7) 1i30 703 53
C. a. late after- LIBRARY
noon (4-day) 1940(7) TAT PLANT BOARD 17.7 55 .6
Min. n sAg. dif.1W7 1-,3"_t___P_
ai.dif. 137


- < /


< /


9




-20 -


Treatme.nt, year.,..- -
and twionervap p s
*rbctwecen applns"; :


Chcck (lE-l) 1080
C. a. early morning
(4-day) 136o0(e)
C. a. midday
(.1-day) 1350(8)
C. a.. late after-
noon (4-day) 1320(8)
C. a. early morning.
(6-day) 1380(6)
C. a. early morning
(S-day) 1110(2.)


....- - .. Incroa,
.Yiel per. acre in each plot. : Averages -
NuWmber orfcff.eoti.vQ applns. in parenthesis : yield sPounds: c


960


1200


1320


1350(68) P1830(8) 1680(8)

1590(8), 1710(8) 1740(8)

1320(8).: 1770(8) 1&60(,S)

1560(6) 1590(6) 1800(6)


1230(4) 1OO(4)


1140

1560

1598

1568

1583

1410


1500(4)


420

458

428


443

270
*1 nr


-"i. .g,. ,i SGU .OV
Check 1408
C. a. early morning Summary for 19.34, :1935, 1938, 1939,
(4-day) 1940, and 1941. Average of yearly 1717 309
C. a. midday averages. The yields ,'iA 1/2.0 acre. "
(4-day) plois were not included in the averages. 1719 311 2
C. a. late after- .
noon (.4-day). ____2 :.8 '3172 (' "
Check (1934) 1572 1173 854 1082 "1170 .
C. a. (4-day) 1556(5) 1369(6) 960(5) 1139(6)',- 1256 86
C. a. (6-day) 1360(4) 1352(4) 963(4) 1065(4) 1185 1' ,
C. 6. (8-day) 1212(3) 1245(3) 1000(3) 1109(3') 1142 '-28
Check (1935) 1948 732 1526 1402
C. a, (4-day) 1833(6) 847(7) 1530(5) 1403 .. 1
C. a. (6-day) 1761(5) 727(5) 1543(4) 1344 -8
Co a. (8-day) 1850(3) 664(4) 1613(3) 1376 ,-26 C
Check (1936) 2706 2552 2075 2519 2749. 2520 ....
C. a. (4-day) 2644(4) 2536(4) 2362(4) 2320(4) 2918(4) 2556 36
C* ."a. (6-;daby) . 2496(3) 2364(3) 2189(3) 2555(3) 2835(3) 2488'.'" `-32
C. a. (8-day) 2790(2) 2412(2) 2307(2) 2230(2) 2918(2) 253"' 7 i. "
Chock (1937) 3154 3129 2218 2834 '. ,"
C. a. (4-day) 3068(5) 2517(5) 2569(4) 2718 ... -
C. a. (6-day) 2023(3)3' 2805-(3) 2434(3) 2687 .-147
C. a. (8-day) 2777(3) 2905(3) 2273(2). .. ''652 -'*i82 -
Check ,(1938) 2027 2210' 2127 2121 -j '
C. a. '(i-day) 2233(6) 2323(6) 2322(6) 2293. 172
C.a. (6-day)" 2245(4) 2172(4) 2400(4) .2272' 151.
C. a. (8-day) 2308(3) 2013(3) 2381(3) 22341 ..113
Check (1939) 1050 13,0 870 990 2340 1322 .
C. n.. (.1-day) 1-'150(r) 1720(C) 1370(8) 1050(8) 2900(8) 1698 376 2
C. a. (G-day) 10,30(6) 1290(6) 1170(G) 1460(6) 2610(6) 1558 236 1(
C. a. (F'-day) 1330(5) 1770(5) 1570(5) 730(5) 2550(4) 1590 .. 268 2
Chock (194,10) (630 .- 460 60. 640 920
C. a. (,4-day) 1430(7) 1360(7) 1510(7) 1120(7) 1360(7) Continued
C. a. (,:-day) 1430(5) 1210(5) 1320(5) 930(5) ,. 1_30(5) be kow
C. a, (C-day) 990(4,) 1180(4) 750(4,) 1020(4) 1260(4)
Chock (19540) 750 680
C. a. (4-,ay) 1450(7) 1372 692 102
C. a. (6-day) 1110(5) 1222 542 80
C. a. (G-day) 1130(4) 1055 375
MTin. sig. rlif. '209 __





$ Yield per- acre in each
S Number of effective applns. in'


Ss Increase
plot. sAverage: : Per
:arenthesis : yield :Poundst cent


Check Summary
a. (4-day) 1939, 19
a. (6-day) averages
C. a. (8-day) were not
Ghock (1935) 1323
C. a. special f -
S(.1-day) 15)
c., a. special 4
(autoclavod)
(4-day) -1271(5)Z
C.. a. (4-day) 1276(5)
Chock (1935)- '1884


for 1954, I-35, 1936, 1937, 1938,
40, and 1941. Average of yo:arly
. The yields in 1/20 acre plots
included in the averages.


1497


1565(-5}


1711(5)
1694(5)


972


1327


* 1561(8)


1596(8)
1896(8)


1978


1649
1G57
1792
1749


1382

1502


1526
1622


1611


(

C


C
C
C

C


C
C
P

C
t




C
C
D

C%


].'* a. special #2
f, ( ,-day ) .....
. a. special #4
(autoclaved)
(4-day)
. a. (4-day)


;heok (1935)
. a. special #5
, (4-day)
. a. special #6
(autoclaved)
(4-day)
. a. (4-day)


heck (1935)
'. g. 25%-c. a.
(4-day)
. a. (4-day)


2048(6) 1116(6)


1736(6) 1144(6)
1892(6) 1160(6)
2136 1332


1996(7)


1965(7)
1992(7)


1217"


2272(7) 1292(6) 1242(7)


2368(7)
2564(7)


1479


75%


,hock (1935)
. g. 10%-c. a. 90,,
(4-day)
. a. (4-day)


2


1476<6)
1288(6)


746


(7)
(7)


1720


1615
166a


1562

1602


1719
1691


1313(7)
1221(7)


542


52(4) 678(6) 606(6)
87 (i) 996(6) 780(6)
55 223 6 1021

76(6) 2,11.-(7) 1121(7)
861(6) 2!756(7) 11,o(7)
10 1486 577


1461(8)
1872(0)


138-4(6)
1071(6)


795(6)
617(6)


thock (1935) 1729 2196 10P5
Dorris and sulfur,
-e rot. (,-day) 161-1(6) 22e9(7) 10,c2
3. a. (4-day) 14410(6) 2333(7) 1-162
hock (1935) 1290 1-3" &
Phonothiazine
(Thiodiphonyla-
mine) 10% and
sulfur 90%
(4--day) 1360(6) 1552(5) 1.10,
a. (4-day) 1265(6) 1,146(5) 1012


(7)
(7)


109


, 70 1_


40


157
129


922


1013 91 10
1088 166 18
150-,


1504-
1,9


0 01
i 5 12


11~.1


1213 22 2
1367 1':
1,!70


1',55
17'1.


-15
7,.


1225


14'.3!,
1515


21..
2r i-,


20o
143
100


120


144
240


13

6


9


10
17


;hcck (1935)
>erris and sulfur,
1% rot. ('-day)
,. a. (C-day)


I


J . ... ..


- 21 -


Treatment, year,
and interval
between appins .


s


1c









Troatrr s.rt, y.oar,
and iitc.rval
; bct'.Een. aorlns.


-22-
; : Increase
SYield pcr Dcre in each plot. :Averagos : Per
: Nunmer of eff.ctiv- ,Lpplns. in p.--.re:ith6sis : yield :Pounrds: cent


Check (1937)
Magnetic cryolite
sulfur dust
(4-day)
C. a. (4-day)
Check (1937)
Alorco cryolite
(4-day)
P. g. l10-c. a. 9
(4-day)
C. a. (4-day)


1844


1861(5)
_J88(5)
2933

2731(5)

3050(5)
2979(5)


1822


2011


1P-92


* 3
23. 7


1822(5) 22c:,-(-4.)
2057(5) 247 (1 )
2490 2308

2178(4) 2179(4)

2483(4) 1831(4)
2650(4) 2366(4)


2363

2455
2665


Check (1937)*
C. a. (.8% w. s.)
04-day)
C. a. (5% w. s.)
(4-day)
C. a. (t1% w. s.)
(4-day)
Alorco cryolite
(4-day)
Magnetic cryolite


1256

2004(6)

1721(6)

2513(6)

2403(6)


1727

2087(6)

2385(6)

1339(6)

2889(6)


2370

2861(6)

1688(6)

163D(6)

2194(6)


2824

2681(6)

2224(6)

2436(6)

1506(6)


1875

1682(6)

2537(6)

2880(6)

1924(6)


Continued

below


sulfur dust
(4-day) ____ 2104(6) 1890(6) 2552(6)
Chock (1937)* 2700
C. a. (.8% ,. s.)
(4-day) 1958(6)
C. a. (5% w. s.)
(4-day) 2685(6)
C. a. (10i W. s.)
(4-day) 1596(0)
Alorco cryolito
(4-day) 2466,6)
Magnetic cryolite
sulfur dust
(4-day) 15524(6)


1671(6) 2661(6)
2125

2212

2207

2067

2244


2072


Chock (1'38)
Coarse alorco cry-
olite (..-day)
C. a. (C-day)


Chock (1938)
Syncrolite (4-day)
C. a. (4-day)

* 1/16 acre plots,


21--6 2238

218b(6) 22-1(5)
2243(6) 23 ..1(5)
17t9 1797
20,C3(5) 1C'4-c', (G)
2104(5) 1E50(I()

randomized blocks.


21 ,3

2223
231.2
17 3
1i.. 6
1077?


-7


101
245


-214

-122
88


87

82

-58

119


-53


30 1
119 5


153
1







- 23 -


Treatment, year, s
and interval
between applns. :


S: Increase
Yield per acre in each plot. sAvorage:" : Fer
Number of effective applns. in parenthesis s yield :Pounds. c :


Check (1939)
C. a. (.1-day)
Syncrolite (,--day)
-Sy-thetic cryolite
(4-day)
Synthetic cryolite
+ 11 Icthanc
(1-day)
Min. sig. dif.


Chock (1939)
C. a. (4,-day)
Alorco cryolite
1(4-day)
Alorco cryolite
JL562 (--day)


Check (1940)*
C. a. (5-day)
Niagara c. a. 794
(5-day)
Cryolite and sulfur
. 85%15 (5-day)
uin. sig. dif.


Check (1940)*
C. a. (5-day)
Magnetic cryolite
(5-day)
Alorco cryolite
(5-day)
Micronizcd natural
cryolito (5-day)


)

)

)


1680
1810(7)
1690(7)

1570(3)


1820(7)


1820
2130(5

1860(5

2010(5
1280
1960(8

2145(8

1470(8


1383
1422( :

1202(4

11.-4(4;

1206(4,


1450
1650(7)-
1340(7)

1160(3)


1240
1650(7)
1910(7)

940(3)


1900
2250(6)
1890(6)

1890(6)


1540(7) 1480(7) 1930(6)


2230(5)

2070(5)

1870(5)


1335 1205
i) 1990(8) 1890(8)

) 2060(8) 1610(8)

) 1485(8) 1390(8)

12gO 992
) 1278(4) 1307(4)

) i100(I) 1053(4)

1) 1111(4) 1236(4)

) 1336(4) 11504..)


1150
1695(8)

1380(8)

1205(8)


1133
1145(4)


1160(4)
1160(.`)
1029(,:)


1930
2390(6)
2150(6)

2110(6)


1640
1950
1796

1534


2250(6) 1804

1865
2180

1965

1940
1243


1799

1388


1081
1139(,,)

1212(-)

1066(,)

114,1 (.)


1170
1250

1152

S1.1. -

1174.


310
156

-106


164
220


315 17

100 5

75 4

641 5

556 45

145 12
215


,.-

-2 '1


Check (1938)**
Ce 8. (.5% w. s.)
(5-day)
C. a. (4.5% w. s.)
(5-day)
C. a. (10.5% w. s.)
(5-day)
Chock (1930)**
C. a. (.5% w. s.)
(5-day)
C. a. (1.5% w. s.)
(5-day)
C. a. (10.5% vw. s.)
(5-day)
Min. sig. dif.


1851

1807(7)

18 b(7)


2069

19-96(7)

2057(7)


1757(7) 2092(7)
l901

2592(7)

2369(7)

22-49(7)


2011

2-1,19(7)

2171(7)


1766

234 (7)

22.1(7)


2027

2207(7)

23:5(7)


Continued

b 1i c"


2137(7) 232C(7) 2263(7)


1

22,3

21.1

2137


* 1/18 acre plots,

** 1/30 acre plots,


randomrnizcd blocks.

randomized blocks.


295

253

19t,
I"0


II I II





24 i

Treatment, year, : : Increasc
and interval Yirld per acre in each plot. :Average: : Per
botwcon applns. : Number of cffcctive p.pplns. in parenthesis i yield sPounds: cent


Ched: k1931.)**
Co a. (.y'5 v,. So ) :
(5-1d0y)
C. :.. (-1.6k- vw. s.)

C. a. (10.3% .7. s.)
(5-da. r)


2 53 0


25,7.(:)

2 ,::2( 6)

2412(r)


24,130


2l-1(6)

2'52(6)

2922(6)


25.:C6


2412(6) 2552(6)

263, (6) 2646 (6)

271,(, ) 227,. (6)


Chock (1940)* 1'
C. a. (.4 wv. s.)
(5-day) 1
C. a, (11.4% v. s.)
(5-day)
iliagara special
c. a. (16.5,; w. s.)
(5-day) 1


014

045(5)

994(5)


141(5)


Check (1940)* 811
C. a. (.4% w. s.)
(5-day) 1123(5)
Co a. (11.4% w. s.)
S(5-day) 1017(5)
Niagara special
c. a. (16.5% w. s.)
(5-day) 1234(5)
Min. sig. dif.
Check (1941) 1616
C. a. (9.1% w. s.)
(5-day) 1754(7)
Niagara special
c. a. (8.7% w. s.)
(5-day) 1851(7)
Niagara special
c. a. and sulfur
15% + % rot.
(5-day) 1950(7)
Min. sij. dif.


1220

1296(5)

1394(5)


130C(5)
887

1359(5)

1242(5)


1241

1500(5)

1415(5)


1337

1597(5)

1362(5)


847

1119(5)

1176(5')


1474(5) 1211(5) 1185(5)


1068

1293(5)

1559(5)


1232(5) 1536(5)


1476

1674(7)


1770

1582(7)


1390

1746(7)


1621(7) 1787(7) 1653(7)


2051(7)


1946(7)


2010(7)


Continued
below


Chock (1939)
C. a. at 25C
(':-day)
C. a. [t 50',"
(.-r-dar)
C. a. at 10o
-~ ^-dy)
Chock (1939)
C. a. at 25%
(4-day)
C. a. at 50%
(4-day)
C. a. at 10%
(4-day)


inf.

inf.

inf.


inf.

inf.

inf.


1090

20 C:, 0( )

2110(4)

21O0 ( )


1460

1930(7)

1700(4)

1C60(0)


1850

211.O()

2240(.1)

2110(,C)


2010

2010(7)

2030(4)

2320(2 )


1640

2100(7)

2. :10()

17 3 (0)


1590

17:C 0(7)

1,20(.4)

2210(.)


1740

2013

2010

2052


Continued
below


273

270

312


randomized blocks.
randomized blocks.


2112

2510(6)

2eOE(6)

226G(6)


2422

25 7
2CP-4
25190
2519


159

256

91


1053

1292

1272


1300


239

219


247
105


23

21


23


1563

1689


1728



1989


12,6


165


426
183


* 1/10 acre
** 1/30 acre


plots,
plots,


16

16


_ _







- 25 -


Trcatmcnt, ycr.r,
and interval
bct:'eon applns.


; Yield per acre in each plot.
: INumbcr of effcctivc applns. in parenthesis


;: ; Increase
:Average; : Per
: yield :Pou1 s: c -r't


Check (1,-O0)
C. a. at 8% inf.
(4'-day)
C. a. at 25% inf.
(:--day)
C. a. at 70c'; inf.
(4-day)
Min. sig. dif.
Chock (15-:1)
C. a. at 30-40%
inf. (5-day)
C. a. + in rot. at
30-4(,0 inf.
(5-day)
C. a. at 50-60c,
inf. (5-day)
C. aa + 3. rot. at
50-60% inf.
(5-day)
Min. sig. dif.


S90

12F0(6)

1100(5)

1070(4)

1530

1110(6)


1590(6)

1620(5)


G50

1170(C)

i.10(5)

1050(4)

1770

147 0(6)


1740(6)

1440(5)


1770(5) 1500(5)


680

1010(8)

1070(5)

930(4)

750

960(6)


1260(6)

990(5)


530

1180(0)

1290(5)

900(4)

610

990(6)


1320(6)

930(5)


810

1110(6)


1320(6)

1020(5)


638

ii0

1218

980

1134

llr.


1446

1200


1080(5) 1200(5) 1080(5) 1326


522

5 0

350
170


54 5


312

66


192
135


Check (1942)
C. a. at 15% inf.
(5-day)
C. a. at 23% inf.
(5-day)
C. a. at migration


Chock (1939)
C. a. before migra-
tion (4-day)
C. a. before and
after migration
(4-day)
C. a. after migra-
tion. (4-day)


Chock (1940)
C. a. before and
aftor migration
(4-day)
C. a. before mig.ra-
tion (.:-day)
C. a. after mirra-
- tion (I-day)
Min. sig. dif.


2510

2410(3)


2310(6)

2520(3)


960


1560(G)

1350(3)

1460,(3)


2090

2370(3)


2250(6)

2290(3)
1051


15:0(C)

1060(3)

11 (3)


2360

2080(3)


2240

2190(1)


2230

2230(1)


2292

2256 -36


2310(6) 2290(4) 2200(4) 2272 -20 -1

2400(3) 2570(3) 1970(3) 2350 56 3
13Y, O I115 10 ~ 115. A


15co(r)



I ':o ( )


iaco(s)
13CG(35)

S- I.CO(S)I


1510(,:,)

1270(3)

15':0k 3)


157 1
12 "';.:

l ,. :"G


110

??2
1 .?


1372

1925(5)

1575(2)
1866(1)


1285

1897(5)

1736(2)
1593(1)


1677

1789(5)

1425(2)
1253(1)


2310

1491(5)

2069(2)
1897(1)


1661

1776

1701
1652


115


-0


7

2
1






2, -

Treatment, year, : Increase
r^ interval Yipli r :crc in -ac-h lot. :'vcra.e:- or
between applns. .: I'Tunbcr of ef'fctiv.: r^F1:-s. in p-..r,.nthcsis : yield :Pounds: cent

Check (1941) 1101 1350 1530 870 30
C. a. before and


after migration
(,-day) 1920(6) 1740(6) 1620(6) 1590(6) 177C(,)
C. a. before migra-
tion (1 1520(3) 1590(5) 1530(3) 1200(3) 1-11 )
C. a. after migra-
tion (C-day) 1650(3) 1590(3) 1530(3). 12o90(5.) 1170(l )
C. a. after migra-
tion (1-day) 1740(2) 14170(2) 1500(2) 1170(2) 12-0(2)
C. a. after migra-
tion 1470(1) 1530(1) 620(1) 1200(l) 10C'1)
Chock (19411) 774
C. a. before and
aftor migration
(4-day) 14176(6)
C. a. before migra-
tion (4-day) 1050(5)
C. a. after migra-
tion (4-day) 076(5)
C. a. after mnigra-
tion (<-day) 1050(2')" .....
C. a. after migra-
tion 924(1) -
Min. sig. dif.
Chock (19142) 1290 1680 20D10. 1'.. 10K -
C. a. before and
after migration
(5-4-day) 1690(6) 1800(6) 2:.: (-) 2'3.:0(,) 2520',,)
C. a. before migra-
tion (5-day) 1650(5) 1800(3) 231'(.) 22,.0'(?) 177,:-, )
C. a. after migra-
tion (<-day) 1680(3) 1500(3) 2,70(,) 2370?) 210,,,5)
C. a. after migra-
tion (4,-day) 1320(2)' 1710(2) 2 370 2220(2) 2 31C( 2)
C. a. after migra-
tion 1920(1) 2130(1) 2550(1) 21('0(l) l;')Ol)
Min. sig. dif.
Ch ck Q 0 '- .o' 1070. .. TT, --h*, 12-'. --5T
C. a. '.ft.r rmigra-
tion 1200(1) 1110(1) 1320(1) 11.,0(1)
C. a. after migra-
tion (5-day) 1330(2) 1330(2) 1.32,9(2) 1",0(2)
C. a. after :.1i&ra-
tion (5-day) 1450(3) 1410(3) 12i-,') 1 :5(3)
Min. sig. drif.


Continued
be low


1099


1686 587 53

1350 251 23

1351 252 23

"",13 65: 235 24

1304 205 ; 19
147 17_
1714-


2220

1 '72

2 :1'0.



2100
"- 1-T3

1203

13.-5

1373


126

168

210

192

303
233


70

212

260
13





- 27 -


Trc trrint Incrc --so
r.nd. interval : Yicl:.1 '.r .crc ii. oc.ch plot. iAv.:i..c c r ."
bctvrcon rprplns. P .'umbcr of cffcctiv'; a.p!r2'is. in ;p.renthosis yicld Founds: c -t


Chccl CL: I:;')
C. a. (.-d.,,r)
C. a. + 5>o sticker
('K-Y.. )


Chcck (10'",)
C. a. (:'day)
Cm- L., 0 -d

C, a. + 57; sti

Chcc1: (I'r z. )*
C a. (5-do.,)
Calfroon (5.d,"
Di-c. c. (5-dq.
Pasic ooppcr a:
nactc (5-day)
French c rL.
Chock: (1.12)
C. a. (5-day)


Rasic coppnr arsc-
na.to and sulfur
1:1 (5-day)
Llorco cr.olito
C5% and sulfur
15% (5-,day)
Check (1: 12)
C. a. (5-.dy)
Basic coTpper arsc-
nc.t- -.n sulfur
1:1 ("-day)
ilorco cryolito
,5. .jnd sulfur
i5;; ( ,-.:ay)


Chcc1: ('I- ::')
C. 7 ( ,,y)
"'icronized c. a.
S- .-.:.)


2220
2110(r-)

2153 (':)


20':-0
205('A4 )
2 C0 5"., .
c]:cr
2210,..)
23:5
221(:2)
) 2,10(c)
:) 22: 5(- )
rsc -
253i:(C)
_2L.C)_
S151
: 1'- (3)


21 .( 2)


23 1-P
^7 ,- r


2400C
2J0(8)


2230
2350(4)


Continued
b c low


1:o0(Gc) 2C7C:) 2790(C) 2010(4)
2232


2302


-533
2 L27(6)
2576( )
2202(.)

2. 02 ':5.)
2:55(')
1^'ZC'
1:..22(3)


150


2367 1.5


2122
271' (6)
2 7 1 (. )
2751 ()
23'C(')

23,, 0. (.,?)

12 .-7
1:.27.)


2 846
2 -25(G)
2502 (6)


22,(
27.8(6)
22:0(5)
2,1-91(G)


2404
2576

2407


02 3


-5
-67


-.1
-3


2703(0) 200'(6) 2356 162 6
2459(3) 2616( ) 255C 6- 3
72- 2310
1240(3) 23,/o(3)


1,17(S) 1617(3) 1.7 2(7) 1311(3) 23410(3)


1572 ( ) 1F .,3(7,) 132,., ( ) 136 5(3)
2700 2220
21:0(3) 2220(3)


2370(3) 2': 00o (3)


i21-':() 2,70(3)
1.30 10-'-',70
l2.3,70(7) 20:0J(7)


1 -"''
iC':o(7 ,,


1 3-170(7)
1 ";70(7)


2,50.17) 1. 50(7) 1"70(7) 1630(7)


." '. sic-. --if.
Clicc1. (1i1-' )** I!1
C. a. (-lust)
(C :-da:) li-,,,(
C F C (spray)
(.:-da-:) ill,-)(


11'0 .


12 "1


1106


103. (-) 1171(G)


Continued
below


21,0(3)


1 21
1 39


il'lO tG 5


1217 -2
136
1G00 432 2

1G25 257 .2.
232!
" "1155


11- 3


-12


-) 1177(7) 1i.5('_) 11- (6) 1122 _-_ -


* 1/0O acre plots, randomiz-ed blocks.

** 1/10 acro plots, randomized blocks.






- 2." -


Trea tmont year, :
Sand interval :
between applr-s. : i

Chock (1941)
C. a. (5-day)
C P G- (dust)
(5-day)
Copper hydro .rse-
nato (5-d-.y) )


Copper hydro .rso-
nate -ars oni tc
(5-day)
an.e, sig. dif.


Chock (1940)*
C. a. (5-day)
C. a. + derris, -
rot. (5-day)
C. a. and sulfur
1:1 (5-day)
C. a. and sulfur
1;1 + -2/ rot.
(5-day)


: Increase
Yi,;ld por acre in ccLh plot. c rac P
m.bor of cfi'ccti'.m apolns, in paLrenthesis : rioli- :Pounds: cent


7O0
^C)


C90
3 0(')


72 9
7,:0k7)


750
,,-:")


7-5

7, 5
7t5


- '-'(3) 750(,) 1330(C) 9G0(3)
;0c0o 3) I:40( ) ,0.,(G) ,.?0(C)


150


15G


00(3) co:~(c) 70(3) ~co(c~)


1122
- 73(C)


1 1'.'
952 ('.)


1023
1 7 ,- (-


1027(6) 1144(0) 10C35() 1240(8)

1010(0) 956(0) 979( ) 1125(0)


10G2(C)


Check (1940)* 1451
C. a. (5-day) 1509(6)
C. a. + dorris, -~
rot. (5-day) 1538(6)
Alternate applns. of
c. a. alone and
c. a. + derris, .i
rot. (5-day) 1410(6)
Alternate applns. of
c. a. alone and
c. a. + dorris, 1%
rot. (5-day) 154,2(G)


6(35


150 20


o9
1013
995 -1 8 -2


1118

1020


105


1054(0) 915(0) 1159(0) 104,7 34 3
1274 1215 1225 1291
1432(3) 1192(G) 1303(6) 1309 18 1


1597(6) 15533(3) 1159(6)


1369(6) 1406(6) 1421(6)


14,32(6) 1402(6) 1204(6)


1401


1432


167


110


141


Check (1940)*
C. a. (5-day)
C. a. + nic. sul.,
e ni. 5-day)'
C. a. + nic. sul.,
1" nic. (5-day)
i'.i.. sig. dif.


Chock (1941)
C. a. (5-day)
C. a. and sulfur
1: 1 (5-day)
Talc + dorris, ::
rot. (5-day)"
C. a. + derris, ~.
rot. (5-clday)
C. a. and Sulfur 1:1
+ dorris, ,, rot.
(5-day)


1490
1790o(0)


1545
'1790(0)


1375
1305(8)


1700
1730(8)


152'


1 c*.


19o.0() 1950(.C) 1665(3) 17o40(0)

1930(0) 110(0) 184-5(0) 1765(8)


17 (4
2061(0)


1797
1506(0)


1932
1010(0)


1744'
-l920({)


1059(0) 1833(G) 1702(0) 10O3(0)

1751(8) 1462(0) 2175(8) 1095(c)

2243(0) 2170G,) 2169(8) 2232(f)


1(0) 16C14() CcC6(0)


153

29C


1 45 317 21
190
1 7-D: 13 -
17:C9 -26 -1

1-40 1,


I,:i

2205


30 2.;


2305(C.) 2000 1C5 10


* 1/18 acro plots, randomized blocks.


II


III I





- 2c -


Trcatmont, yOa.rL,
and interval
bctv con applns.


Chcch (19,1)
C. a. (-5-day)
C. a. an '1 orris,
rot. ('--5-day)
C. a. and cube,
rot. (,4-5-day)
C. a. and timbo,
rot. (:-5-day)
Cal-Zinc
Chock (1C41)
0. a. (4i-5-day)
- a. an d derris,
rot. (4-5-dary)
C. a. and cube, o
rot. (4-5-day)
C. a. and timbo,
rot. ('-5-day)
Cal-Zinc
I1in. sig. dif.


9


s Yi.-ld per f.crc in c:.ch riot.
: Iu-ibcr of effective applns. in. p.rcnthcsis :


-1-c.


o1110
lOj:O()


900
1170(:)


1020
530(V)


117-(: )


12C'
1020( )

1235(?: )


12 3'(C.)
1:' (, )


1410(3) 12'0(c,) 1320(G) 12CO(,)

13,20(r;) 12?0(C) 12O(5:) 1200(.)

135,"('%) 1,110(.) 135C(-) 5(:"( )
1230(C) 114C(:) 1;50(c) 1050(:-)
1050
1060(b)


1200(0)


139 70 (r, o)
1470(0)
1110(3)


cncrs.'
;"vcrarm,; : r.
vi el 1 Four._,s: crnt


1070
1075

1215

1300

1300
1110


5 .5

215- 2

27.0 21

310 2
40 4
r-


C hock: (1942) 1710 1500 1690 1U 30 2 214
C. a. (5-day) 1560(4) 2010(4) 1710(4) 1740(4) 177(4)
CGal-Zinc (5-day) 1440(4) 1740(4) 1950(4) 1710(4) 2043(4)
Cxl-Zinc and cubo,
,rot. (5-day) 1530(4) 1530(4) 2070(4) 2100(4) 23C.(4) Continued'
Altornate applns. bo low
c. a. alone and
C. a. and nic,
sul., 2n nic.
(5-day) ... 1320(4) 1770(4) 2310(4) 2100(4) 2346(4)
Chock (1542) 22'2 1794 2046/ 1006
C. a. (5-day) 1974(4) 1947(4) 1623(4) 118 -.- -5
SCal-Zinc (5-day) 210 (4) 2170(4) 1917(4) 18iC -20 -1
Cal-Zinc and cubo,
l -,rot. (5-day) 2433(4) 2052(4,) 1C51(4) 11 5 4
Altornato applns.
c. a. alone and
c. a. and nic.
1sul., 2' nic.
S(5-day) 2313(4) 1950(4) 2124(4) 2029 135 G


Check 19p41)
C. a. (5-day)
C. a., sulfur 15%
and cube, ", rot.
(5-day)
C. a., sulfur 15:'
and cube, c rot.
(5-day)
C. a., sulfur 151
and cube, i/I10
rot. (5-day)
Bin. sig. dif.


;30
04o(o)


C10O
930(8)


C70
14-0(r)


132 '(:) 1230(,) 15,'O, (.,)


1110(;.) 930(C) 1440(r;)


iO-;0(o) :,C:,o(C..) 1.0oo(-)


1050
1710(2)


3-.,(-,- )


15 ,3.( )


915
1230



144 5

1253


315


537






2.. 7


*


Co,7. ti cuc -'


1%

21^




- 30 -


Troat-ent, year, :
and interva) Yicld per cacro in each plot
between applns. : Nuttbcr of effective ayplns. in parenthesis :


s Increase
Average: : P or -
yield :Pounds% cent


Check (1-11) 10CC
C. a. (-'-5-day) 930(3)
C. a. and cube, f
rot., early rmorn-
ing (1-5-day) 117 0(C)
C. -. and 'nieo sul.,
'- nic., aly
morning (4-5,-day) r'70(-)
C. a. and'nic. sul.,
Snic., lati aftcr-
noon (.:-5-day) 1230(:)
Thin. sig. dif.


Check (19411) 570
C. a. (5-day) 960(7)
C. a. and cube, 1
rot. (5-day) -1410(7)
C. a. and nic. sul.,
1% nic. (5-day) 1230(7)
C. a. and'Black loaf
10 dust, i% nic.
(5-day) 1000(7)
Min. sig. dif.


1020
00()


1050
ilio(r)


7 0
960(o)


930
l140(C)


972
100G


1170(0) iio(ri) 1290(3) 1.230(0) 1200o


99C0(8) 12o90(3) 1140() 1020(c) 1062


1170(0) 1170(5) 1230(C) 1050(C)


690 690


690 690
990(7) 1020(7)

1140(7) 1110(7)

1590(7) 1500(7)


1350(7) 1470(7)


720 540
1350(7) 810(7)

960(7) :140o(.7)


36


2243


90 9


1230 258
100


642
1026

1212


1470(7) 1.,620(7) 1408


930(7) 1320(7) 1230


All applications made during the late afternoon


..384-" 60

570 89
.846 132


588
255


Chcckl (1942) 2125
C. a. late after-
noon (5-day)" 1790(4)
C. a. andJ cube, ?,
rot., early morn-
ing, (5-day) 1 23(:-)
C. a. rnd cube, ,
rot., late after-
noon (5-day) 19:C (4)
C. a. and nic. sul.,
nic., late after-
noon (5-day) 1793(4)
Alternate applns.
c. a. alone and
Co a. nrd nic.
sul., 1, nic.,
late afternoon
(5-day) 1913(4)
Alte rnate applns.
C. a. alone .and
c o a. and nic.
s1ll., 2,;' nic .,
late afternoon
(5-day) 166C(4)
C. a. and Black
jleaf 10 dust,
1$ nic., lato
afternoon
(5-day) 160.(4)


1l4


21:10


1450


1400


1121


1530.(4) 143 (4) 1320(4) 14'25(4) 1502


1C1C(-) 170c,(4) 14.70(4) 1250(4) 1,12


1935(4) ':,'.- ) 1433,(4) 1530(4)- 1773


1700(4) 1563(4) 1500(4) 1'3CC(4) 1i65


1533(4) 1P13(4) 20S3(4) 10,3(4) 1703





1725(4) 1950(4) 165(4) 1900,o(4) 1772




1905(4,) 1C:00(4) 170o(4) 1700(4) 1777
Cont. on ncxt page


-319 -13


-209


-11


-45 -2


-156


-11C -6




-,. 9 W3
-49 -3




^ -2I
-44n


Ii





- 31 -


Trcc trr :at ;'car,
-.*- i, -.b 'v
b'tvr ,n L nprlns.


I I r
Yi-.]i <-or ,crc in c.-.ci p_- t. : vcr -p
u'nimor of *:-lf',ci.- I... Ins in r-.rcnthcsis : yield 1 Pc... ; cont


C, a. canl'Pnic. sul.,
'1i nic., la. to
'afternoon
(z-, y) 1'
C. a=. for boll w.tc-
vi. control (5-'.y)
aria. tobacco dust,
li .c nml! nic. sul.,
I3, nic., as ncLd.cd


for aphid control i3cl,(.)


"'?(4-) lcs3(-:) 2125( )


2213k .:) 1(25(4-) 1055


257, (.-) 1:00( ) 207. K.) 2150(4,) 2107


Iin. sig. dif.


AL Chock (1942) 20
Early morning arpplns.:
B- C. a. (5-day) 18
C- Alternate
applns. of
c. a. alone
and c. a. .nl
nic. sul., 2f
nic. (5-day) 23
D- Alternate


70


2374


1940


00(4) 20.1(4) 2020(4)


'1710 11C


2012


1725(4) 1770(4) 1117


:10(4) 1:5.:4(4) 2350(4) 1G50(4) 2160(4) 2091


13.






2
I4 '7



-145


7; 1-


a pi-KIns. of
c 2.. al ono
and c. a. and
Black- I-'if 10
Aust, 2. nic.
l %-,I.y)
)
I:id,"' -. -i." lns. :
G- a- s B
F- 3'.-.m. as C
G- .7fr1D as D
Lat, ft.::rnoon annrol-
H- S .'c as B
I- 2:.,'c .s C
J- *'--,. as D


Sin. sig. .if.
Check (IC-l)
C. (5-.ay)
C. 2. an-' nic. sul.,
nic. (5-day)


Lltcr'r.to arIplIns.
c. a. alont -.nd
C. a. and rnic. sul.,
1r^ nic. (5-da,)y) 15 .0("
ltornato ".polns.
C a. alone and
c. a. and nic. su 1.,
2%, nic. (5-d7r) 144:0(')
Pin. Cig. dif.


2:10(.: 257.1 (1) 2',70(1 : ) 15' -: () 22,,15 ( ) 2050


1,:2.(:)
l'o.)
1-2 ', )(. )
1:. : :)
Sl
l:5,(.)
2:1 ,.:)
2 1)


S7-_
?\( )


1R[,()
rI )
1 -"-(.)
1:'"(,..)
25l.-(.)

21: ()


2020(4)

1 -(-:)

1 .oo(:)
217.:) (. )
2u". (.)


1O'-.5( )
l 10 A.:)
1170'(.:K)
s, '-,'* : )

17 5(.- )
l I. I )


153': 1')
1.75(:)
171- (: )

177r( I, )
22, ( :)
-1T( )


12 '.2
1 -r.
17 .,

17 '7

1. 37,


750 I'.: 7 "
13 : (") .'-3( ) 7.5,1 1) 1.1?


1440('") 12:'0(') 12'-'( ) 123 .-' )


1)51% 1m( '. 17 ',


1.:7': .) 1 :7 ;) 1.7 1" )


-.'


1 3>

-I ,
_ l" )


2

-1!

-1i3

-15
5


r2.1.0 .luring i .tc:' t.: rnno'.


21, 23

: "3 5G


. i'


1 .6


* 1_1' r
I)


12 "-


.11 applicitic,.s






- 32 -


Trcatnoitj, year, .
a-'-11 int*.:.-, r*val
boetvrcn ar 2 ns

Chock (1C 12)
C. a. (5 -dy)
C. c. and sulfur
1:2 (5-day)
C. ;' $37%"; sul-
fur 5 .L7%, lime
5' and nic. sul.
2.5; (1; nic. )
(5-day)
5TL (5-day)*
Alternate applns.
c. a. and sulfur
1:2 and lC.IL
(5-day)**
Chock (1,42) ~
C. a. (5-day)
C. a. and sulfur
1:2 (5-day)
C. a. 3S.53%; sul-
fur 59. 177, limeo
5% and nic. sul.
2.5% (1/ nic.)
(5-day)
51IL (5-day)*
Alternate applns.
c. a. and sulfur
1:2 and 1CHL
(5-day)**
Check (1942)
C. a. (5-7.ay)
C. a. and sulfur
.1:1 (5-day)
C. a. 5U'/, sulfur
42.5%, limo 51,,
nie. sul. 2,5%
(1% nic.)
(5-day)
QNL (5-day)***
Alternate applns,
c. a. and sulfur
1:1 and 2C1'L
(5-day) ****


Ark. Fort. Co.

** Ark. Fort. Co.

*** Ark. Fort. Co.

**** Ark. Fort. Co.


YiclI nocr -.crc in each plct. :L;.rcra:g.c :cP
Number of offectivc ar.pplns. in parenthesis : yield :Pounds: coi-


1u90
1920(4)


1410
19.2.0(4)
l1110
1)1 0..


1260
186.0(4)


1710
1 OO,(4)


1350
1770(4)


1920(4) 1000(4) 1440(4) 1710(4) 1200(4)


2040(4)
1830(4)



XCS0(4)


1320
1470(4)


1o00(4)




1920(4)
1620(4)


1260(4)

1755(5)00
1755(5)


1650(5)
2010(5)


1830(4)
1650(4)


13o0(4)
1980(4)


1620(4)
1500(4)


1770(4)
1590(4)


Continued
below


100(4) 1650(4) 16GO(4) 1470(4)


1490
1800

16' 5.




17,30
1':5


1215
1710(5)


1965(5)
1455(5)


310 21


155




270
2 u5


10 -


2/:
14


1___ 2152.1 130 9
17 .5 1,7. 1' 35
172F(5) 175,5(5) 1733 I01 ,


13405(5)
2010(5)


1J23




1901
IJ" 30


21 -5(5)
1),. 5('s)


266
15


12


14,40(5) 1470(5) 1770(5) 21-7'(5) 1710 75 5

5NIL = C. a. 33.33,,, nic. sul. 2.5, ., Lcthr, nc 1, I'., lhuo 5, ,
and sulfur 5 .17": (1'J nic.)
IGI.L = C. a. 33.33', nic. su. 5,;1, Lcthnu .3 1:.,, limc 5.f,
and sulfur 55.'7, (2'., nic.)
9NL = C. a. 5C', nic. sul. 2.5,.., Lcthi.nc 30 1;-, Iliuc 5i,
and sulfur 41.50% (1;A nic.)
20NL = C. a. 5Ce, nic. sul. 5',, LctlIhno 60 1,,, li"o 5, A,
and sulfur 3,,. (2' nic.)


2010(5) 1470(5) lC'U(5) 1L,5':1 )







I -







































1].


betviocn a.pplns. : ITuribcr of effective; ..pplns. in parenthesis


Check (:1939)
C. a. (4-day)
C. a. (4-day) + 3%
nic. dust.
0% nicotine dust


Check (1939)
0. a, (4-day)
C. a. (4-day) + 3%
nic. dust
:/ nicotine dust
Min. sig. dif.


1920
2330(5)

2470(5)
1750(2)


1920
1970(3)

1880(3)
1810(1)


2030
2150(5)

2210(5)
1980(2)
1980
2030(3)

2010(3)
2170(1)


2000
2130(5)

2640(5)
2270(2)


1860
2140(3)

2160(3)
1940(1)


2230
21 E. C (3)

2460(3)
2280(1)


Continued
belc.:-


142

270
38
170


Check (1940)* 1550 1430 1280 1140 1345
d. a, (5-day) 1795(8) 1815(8) 1890(8) 1515(8) 1754 409 30
3% nicotine dust 1345(4) 1390(4) 1390(4) 1195(4) 1330 -15 -1
a. (5-day) + 3%
Snic. dust 2010(8) 2050(8). 1875(8) 1910(8) 1961 616 46
Min. sig. dif. .145
Check (1941) -. 690 390 960 660 1250
C. a. (5-day) 840(8) 1170(8) 1140 (8) 1290(8) 1100(8)
3% nicotine dust 510(4) 780(4) 1050(4) 780(4) 1075(4) Continued
C, a. (5-day) + 3% below
nic. dust 1560(8) 1230(8) 1710(8) 1650(8) 1525(8)
Check (1941) 1075 838
C. a. (5-day) 825(8) 1061 223 27
3o nicotine dust 1125(4) 887 49 6
C. a. (5-day) + 3%
nico. dust 1625(8) 1550 712 85
M1in. sig. dif. 207


Check 19"i2)
C. ,. 5-day)
3% nic. dust
C. a. (5-day) + 3%
nic, dust


1974
1926(5)
2280(2)


1758
1893(5)
1707(2)


(5) 1842(5)


Chock (1941) 720 870
C. a. (5-day). 1080(6) 1050(6)
C. a. + 2,5% Ketone
(5-day) 1050(6) 1080(6)
85% c, a., 7.5% zinc
sul. and 7.5% limo
(5-day) 1110(6) 1-10(6)
90% c. a. + 10% zinc
arsenate (5-day) 1020(6) 1050(C-)
"'in. sir. dif.


2103
1749(5)
1947(2)


1788(5)
720
1020(6)


960(6)


8 10 (6)

900(C)


2075
1325(5)
1500(2)


1500
1550(5)
2150(2)


1'-50(5) 2075(5)


1882
1689
1917

1943


770
1050

1030


1020(1


-193
35


-10
2


61 3


29'0
2 GO

25C'


25 ^
2f 7'-


1991
2133

2261
2029


* 1/18 acre plot-, randomized blocks.


Trecatmont, year,
and interval


Yield por acrc. in c-ach plot


SIr.cl rcD s (
,.,criel Fu r s: For
yield -Pour..s: c,-nt


_ I i I


- 33 -


T


*
*

* I








- 34 -


Treatrmnt, year,
anid interval
between applns,


S : _increase
: YieLd per acre in c-ach plot. sAverage: : Per
: Number of effective applns. in parenthesis : yield :Pounds: cent


Check (1941) 1980 1830
C. a. (4-5-day) 1740(6) 1620(6)
C. a. + 2% pyrote
(4-5-day) 1890(6) 1260(6)
9gm c. a. + 10%
carrier impreg-
nated with stab-
ilized rotenone
extract (4-5-day) 18G0(6) 1530(6)
Same as above 1860(6) 1830(6)


1905
1680


-225 -12


1575 -330 -17


1695
1845


-210
- 60


Yield in regular control tests against the boll weevil, iadison Parish,. La., 1920-42

Yield per acre S Increase
: In untreated : in treated ....
Year plots S plots : Pounds : Per cent : Replicates

1920 847 1125 278 32.8 10
1921 973 1407 434 44,1.6 6
1922 598 1100 502 83.9 8
1923 1134 1369 235 20.7 6
1924 950 960 10 1.1 5
1925 1974 2204 230 11.7 5
1926 1087 1829 7412 68.3 5
1927 1255 1669 414 33.0 9
1928 971 1371 400 41.2 10
1929 1486 1662 1741 11.7 9
1930 1131 1236 105 9.3 4
1931 1885 2414 599 31.8 10
1932 1251 1823 572 45.7 9
1933 911 1330 419 46.0 9
1934 1212 1448 236 19.5 17
1935 13419 1502 153 11.3 33
1936 2195 2305 110 5.0 21
1937 2341 2419 78 3.3 17
1938 1968 2156 188 9.6 19
1939 1950 2171 221 11.3 58
1940 1008 1559 551 54.7 25
1941 9A73 1438 455 46.3 80
1942 t1870 1914 ,44 2. 82
Average 1362 1673 311 22.8 457


-11
-3




































1


Alorco cryolite, 22, 23, 27
Alorco cryolite, coarse, 22
ilorco cryolite and sulfur, 27
senatee
Barium, 6
SBasic copper; 27
Copper hydro, 28
Zinc and calcium arsenate, 33
Autoclaved calcium arsenate, 21

Barium arsenate, 6
Barium fluosilicate, 10, 17
Basic copper arsenate, 27
Berry Boll Weevil Exterridnator, 6
Black leaf 10 dust and c. a., 30, 31
Bob White (c. a. plus sticker), 3, 4
Boll-We-Ex, 9
Boll-We-Go, 5, 6, 9
Boyd's, Dr. C., 9
?. Q, 8

Calcium arsenate dust
After migration, 13, 25, 26
Autoclaved, 21
Before migration, before and after
migration, after mi ration,
26, 26
Chemical Warfare Special, 10, 11
Colored vs. uncolored:
Conmercial, 12
General, 12
Grasselli, 12
Lucas-Kiltone, 13
Niagara, 12
Sunmmary, 13
Control tests, (c. a. vs. check)
3, 4, 5; 9, 10, 11, 12
Summary, 34
Dew vs. sprayed water, 3
Different degrees of infestation,
2, 24, 25
Dust vs. spray, 3
Early or presquare, 3, 4, 7, 8
Grasselli Special furnace
product, 5, 7
Grasselli vs. Riches-Piver, 5
Heavy vs. light applns., 7
Interval between applns.:
4- and 7-day, 2
S4- 6- and 8-day, 20
Summary, 21


Calcium arsenate dust, cont..
Light vs. heavy pplns., 7
Lucas-Kiltone special, 12
T!icronized, 27
.'ia-ara iV794, 23, 24
: ia'ai.ra -794 and sulfuTr + 'x. rot., 24
Presquare or early, 3, 4, 7, 8
Presruare or early applns. followed by
later applns., 3, 4, 7, 8
Riches-Piver vs. Grasselli, 5
Spray vs. dust, 3
Sprayed water vs. dew, 3
Time of day or night
E.rly morning, midday and late
afternoon, 18, 19, 20
Summary, 20
Evening, 2
Midnight, 2
Morning, 2, 3
Noon, 2, 3
2-3 pounds per acre, 17
Water-soluble As205, different per-
centages in c. a., 22, 23, 24
C. a. after migration, 13, 25, 26
C. a., autoclaved, 21
C. a. and copper arsenite, 13, 18
C. a. and cube, rotenone 29, 30
C. a., sulfur and cube, 2,rot.,
Co a. and derris, rot., 28, 29
C. a. and derris, 1% rot., 28
C. a., sulfur and derris, 2, 4o rot., 28
C. a. and timbo, -;' rot, 25, 29
C. a. and rotenone, 34
C. a. and nicotine sulfate, nic., 2P,
C. a. and nicotine sulfate, nic., o5,


30
30,


31
C. a., nicotine sulfate, Lethane 30, lime
and sulfur, 32
C. a. alone ',md nicotine sulfate mixtures,
Z; nicotine (sew-r.te apnlns.), 31, 32
C. a. --,d nicotihe dust (Black leaf 10) 1->.
nic., 30. 2' nic., 31
C. a. 75o and P. g. 25"o, 12, 13, 21
C. a. .C0 and P. g. l1 15, 21, 22
C. a. and lime, 13, 14
C. a. an d sulfur, 14, 15, 16, 17, 2.
C. a. and micronizod sul',r, 16
C. a. and sticker, 3, 4, 7, 27
C. a., micronizod, 27
C. a., Di-, 27
C. a., French, 27
C. a. and Ketone, 33
C. a. and nicotine sulfate, 2' nic., 2., 70,


- 35 -

I )EX


29




- 36 -


I'TX, Cont.


C. a., zinc sulfate and lime, 33
C. a. and zinc arsenate, 33
C. a. and Pyrote, 34
Calcium fluosilicate compound, 7
Calgreen, 12, 27
C 1l-Zinc, 29
Cal-Zinic and cube, j rot., .29
Chemical 1--rfare special c. a,.,
10, 11
Chipman's (Mrs. Smith), 7
Colored vs. uncolored c. a.
Commercial, 12
General, 12
Grasselli, 12
Lucas-Kiltone, 13
1rrara, 12
Summary, 13
Copper arsenite and c. a., 13, 18
Copper hydro arsenate, 28
Copper hydro arsenate-arsenite, 28
C P G spray, 27
C P G dust-, 28
Crawford and Luke, 6, 9
Cryolite, alorco, 22, 23, 27
Cryolite, alorco, coarse, 22
Cryolite, rzr.gnetic sulfur dust, 22
Cryolite, magnetic, 25
Cryolite, micv-nized natural, 23
Cryolite (sodirn fluoaluminate), 17
Cube and Co ao, co rot., 29, 30
Cube and Cal-Zinc, i% rot., 29
~. 2, /i *-
Cube, c; a. and sulfur, -, 1/101%o
rot., 29
Cultivator duster, 13

Derris and diluent, 18
Dorris and sulfur, 21
Derris and c. a., -%- rot., 28, 29
Derris,'c. a., and sulfur, and 'o
rot., 28
Dorris and c. a., 1% rot., 28
Dorris and talc, / rot., 28
Di-calcium arsenateo, 27
Dust vso spray (c. a.), 3

Early or prosquaro (c a. dust),
3, /, 7, 8
Early or prosquare (molasses mix-
ture), 7, 8, 11
Early or prosquare applns. of c. a.
dust followed by later applns.,
,4- ,7,8


Early or pres'uare mole mix. followed by
c. a. dust, 7, 11
:. Farmer's Joy, 6, 9
Florida Method, 4, 6
Fluorine compounds
Alorco cryolite, 22, ?, 87
Alorco cryolite, coarse, 22
Barium fluosilicate, 10, 17
Calcium fluosilicate compound, 7
Oryolite and sulfur, 23, 27
Magnetic cryolite, 23
Magnetic cryolite sulfur dust, 22
Hicronized natural cryolite, 23
Sodium fluoaluminate (cryolite), 17
Sodium fluosilicate, 7, 9, 10, 11, 12,
17
Syncrolite, 22? 23
Synthetic i. :ite, 23
Synthetic c .to + Lothaine, 23
French calciaji arsonato, 27
General c. a. and'sticker, 27

Hill's mixture, 5, 9
Howard dusting machine, 8

Infestation, c. a. applns. Started vrwith
different degrees of, 2, 24, 25
Interval between c. a. applnso.
4- and 7-day,. 2
4-, 6- and 8-day, 20
Summary, 21

Ketone and c. a., 33

Labell's sticker, 7
Lothano GO, c. a., nicotine sulfate,
lime and sulfur, 52
Lethane and synthetic cryolite, 23
Lime, 17
Lime' and c. a., .13, 14 .... ,
Lime, c. a., nicotine sulfato, .Lothane GC
and sulfur, 32
Lime, c. a. and zinc sulfate, 35
Lime and I'o g., 17
Lucas-Kiltono c. a., 12

Machine, dusting:
Hand gun attached to cultivator, 13
Howard, 8
Niagara, 8
Sagnetic cryolite, 23
Magnetic cryolite sulfur dust, 22




- 37 -


IIDEX, Cont.


1:britol, 10
!licronizcd c. a., 27
Micronized natural cryolite, 23
i'icronizcd sulfur and c. a., 16
Vibration, see calcium arsenateO dust
lixturos
Black loaf 10 dust acid c. a., 10
nic., 30. 2% nic., 31
C. a. and copper arsenite, 13, 18
C. a.'and cube, rot., 29 30
C. a., sulfur and cube, 2, >,
1/lc, rot., 29
C. a. and dorris, rot., 28, 29
C. a. and derris, 1% rot., 28
C. a.,-sulfur and derris, -, K.i
rot., 28
C. a. and timbo, -. rot., 25, 29
C. a. and rotenone, 34
C. a. and nic. sulfateo, i nic.,
28, 30
C. a; and nic. sulfate, 1% nic.,
28, 30, 31
C. a; and nic. sulf.-te, 2% nic.,
29, 30, 31
C. a. and nic. dust (Black loaf 10)
11 nic., 30. 2% nic., 31
C. a. 75%/ and F. g. 25%, 12, 13, 21
C. a. 9Qt and P. g. 10c, 15, 21, 22
C. a. and lime, 13, 14
C. a. and si.'lfur, 14, 15, 16, 17,
28
C. a. and micronized sulfur, 16
C. a. .nd sticker, 3, 4, 7, 27
C. a.'and Ketone, 33
C. a., zinc sulfate and lime, 33
C. a. and zinc arscn.tc, 33
C. a. and Pyrote, 34
Copper arsenito and c. a., 13, 18
Cryolite and sulfur, 23, 27
Cube' and c. a., rot., 299 30
Cube c. a. ;and sulfur, -2, ,
i ip rot., 29
'Dorris and diluent, 18
Dorris and sulfur, 21
Dcrris'and c. a., ,. rot., 28, 29
Derris, c. a. and sulfur, and
-S. rot,, 28
Dcrris and talc, -1 rot., 28
Kctono and c. a., 33
LiMr. and c. a., 13, 14
Limeo and P. g., 17
Lie, c. a. and zinc sulfate, 33


Mixture. s, cont.
I unotic cryolite sulfur dust, 22
Tiac:.-r;. c. a. 794 vnd sulfur, 24
";icotinc #0st (Black loaf 10) and
c. a., l10 nic., 30. 2,.. nic., 31
Ticotin: sulfate and c. a., 1% nic.,
20, 30
i icotino sulfato and c.a., nic.,.
28, 30, 31
ITicotine sulfate and C. a., 2. nic., 29,
30, 31
;icotinc sulfateo mixture, 3., nic., 33
P. g. -25,. and c. a. 75;, 12, 13, 21
P. g. 10,; and c. a. 1o, 15, 21, 22
F. g. and lime, 17
Pyroto and c. a., 34
Roteononc and c. a., 34
Sulfur and c. a., 14, 15, 16, 17, 28
Sulfur and cryolite, 23, 27
Sulfur and dcrris, 21
Sulfur, c. a. and dcrris, -u and ,*
rot., 28
Sulfur, c. ao and cube, -;, -,
rot., 29
Talc and derris, $> rot., 28
Timbo and c. c., -,, rot., 25, 29
Zinc arsenate and c. a., 33
Zinc sulfate, c. a. and lime, 33
:*classes mixture
'iop and spray, 4
Mop thro'.out season, 3, 5
Pros';.-.ar or early (mop), 7, 8, 11
Presquare or early rmol. mix. followed
by c. a. dust, 6, 7, 11
Spray, 4
,op, presquare or early (mel. mix.), 7,
8, 11
Hop and spray, 4
Mop throughout season, mol. mnix., 3, 5
".or,-an's, J. H., (7)

' .r c. a. 7'.-, 23, 24
Si .ra c. a. 794 a-rd sulfur + rot.,
24
i'ia- ,ra dusting ic'.Ichinc, 8
.:icotino dust (Black loaf 10), and c a.,
1r/' nic., 70. 2, nice, 51
Uicotinc sulfate an5' c. a., r nic., '
'icotine sulfate and c. a., 1 nic., 28,
30, 31 29,
Nicotine sulfate and c. a., 2 ni.,/ ,.
- icoti-u sulifate mixture, 3,.. rnic,, 37




UNIVERSITY OF FLORIDA

3 1262 09224 711111 1 112
3 1262 09224 7112


T-DEX, Cont.


Nicotine sulfate mixture, 3- nic.
and c. a. (separate apclns.),
31, 53
Nicotine sulfatc, c. a., Lothano .60,
lime and sulfur, 32
P. g. 10,', c. a. 9C,, 15, 21, 22
P. g. 25 c. a. 75 12, 13, 21
P. go and lime, 17
Phcnothiazino (thiodiphenylamine),
17, 21
Pres',)u: 'e or early (c. a. dust), 3,
4, 7, 8
Frese-uare or early (mol, mix.), 7,
8, 11
Prosquaro or early applns. of ca ao
dust follovwed by later applns.,
17Z 7, 8
Presquare or early moli. mix. fol-
loved by c. a. dust, 7, 11
Pyroto and c. a., 34

Repulso, 10
Rotcnono and c. a., 34

Saundors', P. R., 6
Sl.zu 9
Sodium fluoaluminatc (cryolite), 17
Sodium fluosilicato, 7, 9, 10, 11,
12, 17 -
Solvent 75, 6, 7
Spray vs. dust (c. a.), 3
Spray and mopped (mol. mix.),4
Sprayed molasses mixture, 4
Sticker and c. a. (0ecneral Choin.
Co.), 27
Sticker and c a. (Bob T,-i:tc), 3, 4
Sticker, Laboll's, 7
Sulfur, 16
Sv1lfur (micronizod) and c. a., 16
Sulfuir .nd c. a., 14, 15; 16, 17; 28
Sulfur,'c. a. and dc.rris, { and d.
rot., 2C
Sulfur,'c. a., and cube, ., 1/10
rot., 29
Sul1fur, Co a., nicotine sulfate,
L.;th -nno 60 ij o 32
Sulfur and cryolite, 23, 27
Sulfur rid dorris, 21
Sulfur ar:.nd Pi L'- .ra c c a ,,7.' 24,
S-i.;crolitc, 22, 23
S"-it',.otic cryolite, 23
S-ith.'tic cr--ylite + Lothano, 23


Talc and derris, -, rot., 28
Thiodiphonylaomino (Phnothiaziic), 17, 21
Tii-bo and c. a., : rot., 25, 29
Time of day or night c, a. vwas applied
Early morning, midday and late c.ftor
noon, 10, 19, 20
Summary, 20
Evening, 2
Y'idnight, 2
morning, 2, 5
I'Toon, 2, 3
Tucker, H. 1., 6

'-,.ter-soluble As205, different porcontages
in c. a., 22, 23, 24
Wcathersby's Cotton Spray, 9
.Oecvilnip, 5, 6, 9
Vfeevilrid, 6
"'av-L -Woe, 12
Vie Jvo, 6

Zinc arsenate and c. a., 33
Zinc safonod c. a. (Cal-Zinc), 29
Zinc sulfate, lime and c. a., 53