Papers on insects affecting vegetables ..

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Material Information

Title:
Papers on insects affecting vegetables ..
Series Title:
U.S. Dept. of agriculture. Bureau of Entomology Bulletin ;
Physical Description:
v, 84 p. : illus., pl. ; 23 cm.
Language:
English
Publisher:
Govt. print. off.
Place of Publication:
Washington
Publication Date:

Subjects

Subjects / Keywords:
Vegetables -- Diseases and pests   ( lcsh )
Insecticides   ( lcsh )
Genre:
federal government publication   ( marcgt )
bibliography   ( marcgt )
non-fiction   ( marcgt )

Notes

Bibliography:
Bibliographies interspersed.
General Note:
Papers pub. separately, 1911-1913 and numbered consecutively.

Record Information

Source Institution:
University of Florida
Rights Management:
All applicable rights reserved by the source institution and holding location.
Resource Identifier:
aleph - 029622798
oclc - 32687280
lccn - agr16001045
System ID:
AA00018914:00004

Full Text
"I


U. S. DEPARTMENT OF AGRICULTURE,
BUREAU OF IENTOMOLOGY-BULLETINi No. 109.


L. 0. HOWARD. Etaimologt and Chiefd o Bureau.


PAPERS ON INSECTS AFFECTING
VEGETABLES.


CONTENTS AND







ISSUED SEPTEMBER 9, 1916.



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WASHINGTON:
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1916..


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ADDITIONAL COPIES

OF THIS PUBLICATION MAY BE PROCURED FROM
THE SUPERINTENDENT OF DOCUMENTS
GOVERNMENT PRINTING OFFICE
WASHINGTON, D. C.
AT

5 CENTS PER COPY







1:
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PAPERS ON INSECTS AFFECTING VEGETABLES.





I. THE HAWAIIAN BEET WEBWORM.
By H. 0. MARSH, Agent, Engaged in Sugar-Beet and Truck-Crop Insect Investigations.

II. THE SOUTHERN BEET WEBWORM.
By F. H. CHITTENDEN, In Charge of Truck-Crop and Stored Product
Insect Investigations.

III. THE IMPORTED CABBAGE WEBWORM.
U
By F. H. CHITTENDEN, In Charge of Truck-Crop and Stored Product
Insect Investigations, and H. 0. MARSH, Agent.

IV. A LITTLE-KNOWN CUTWORM.
By F. H. CHITTENDEN, In Charge of Truck-Crop and StoredjProduct
Insect Investigations.

V. ARSENITE OF ZINC AND LEAD CHROMATE AS REMEDIES
AGAINST THE COLORADO POTATO BEETLE.
By FRED A. JOHNSTON, Entomological Assistant.

VI. THE SUGAR-BEET WEBWORM.
By H. 0. MARSH, Entomological Assistant.


VII. THE
By H. 0.


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HORSE-RADISH WEBWORM.
MARSH, Entomological Asuistant.


WASHINGTON:
GOVERNMENT PRINTING OFFICE.
1916.


U. S. DEPARTMENT OF AGRICULTURE,
BUREAU OF ENTOMOLOGY-BULLETIN No. 109.
L. 0. HOWARD. Entomologist and Chief of Bureau.





















BUREAU OF ENTOMOLOGY. :

L. 0. HQWARD, Entomologist and Chief of Bureau.
C. L. MARLArTT, Entomologist and Assistant Chief of Bureau. .
E. B. O'LEARY, Chief Clerk and Executive Assistant. :;
F. H. CHITTENDtN, in charge of truck crop and stored product insect investigation;!* :
A. D. HOPKINS, Forest Entomologist. 1
W. D. HUNTER, in charge of southern field crop insect investigations. :
in charge of cereal and forage insect investigations.
A. L. QUAINTANCE, in charge of deciduous fruit insect investigations.
E. F. PHILLIPS, in charge of bee culture.
A. F. BURGESS, in charge of gipsy moth and brown-tail moth investigations. :;
ROLLA P. CURRIE,-in charge of editorial work. :
MABEL COLCORD, in charge of library. :

TRUCK CROP AND STORED PRODUCT INSECT INVESTIGATIONS. :
F. H. CHITTENDEN, Entomologist in charge.
C. H. POPENOE, T. H. JONES, M. M. HIGH, F. A. JOHNSTON, AND D. E. F.
entomological assistants. :
H. 0. MARSH, F. B. MILLIKEN, C. F. STAHI, FRANK R. COLE, A. B. DUCKETF,-B. 1-
BOYDEN, R. E. CAMPBELL, W. H. WHITE, and PAULINE M. JOHNSON, ScienA
assistants.
NEALE F. HOWARD, Specialist.
W. N. DOVENER, Expert.
II








CONTENTS.


: 'he Hawaiian beet webworm (Hymenia fascialis Cram.) ....... H. 0. MAarsh..
: Introductory ..................... ........... .... ................ ....
F Food plants and injury.....................................
Life history and habits................................................
ai Natural enemies ........................................................
Experiments with insecticides.........................................
Description of the earlier stages............................... H. G. Dyar..
SAppendix .............................................. F. H. Chittenden..
Description and synonymy.............................................


Distribution........................................................
History ..................... ........................................
Bibliography .........................................................
The southern beet webworm (Pachyzancla bipunctalis Fab.).. F. H. ChilMttenden
Injurious occurrences and notes on habits............................


Descriptive .................................. ...........................
The m oth ........... .............................................
The egg .................. .............................
x The larva ................... ......................................
The pupa ................... ......................................
Distribution ...........................................................
Historical and biological notes.........................................
Natural enemies.........................................................
Associated insects ............................ ...........................
SR em edies ............................................................
Paris green................... ....................................
: "Dragging the log".............................. ....... ..........
The imported cabbage webworm (Hellula undalis Fab.) .. F. H. Chittenden
S and H 0. Marsh.......................................................
Introduction, spread, and ravages......................................
Description and life-history notes.......................................
The moth ................... ......................................
The egg and oviposition...........................................
The newly hatched larva.........................................
The full-grown larva......................... .............
The pupa .....................................................--------------
Distribution ..........................................................
SFood plants ..........................................................
:. Natural enem ies ......................................................
. 1The imported cabbage webworm in Hawaii............................
:: Life history and habits....... ...........................
i Natural enemies in Hawaii........ ...............................
|, Experiments with insecticides.....................................
[-' Experiment in screening a seed bed................................
Conclusion ............................ ...............................
Q.' ;Recommendations for control..........................................
Ij: ::' Bibliography .........................................................
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Page.
1
1
2
3
7
7
11
12
12
14
14
15
17
17
19
19
20
20
20
21
21

21
22
22
22

23
23
27
27
28
29
29
29
30
30
31
32
34
37
'38
41
41
42
44




S. '. '. .. .. ..
,t I OT lqG ... .. fp .7 ,. -.:.
IV PAPERS ON INSECTS APPECTINO VBGMTABLS. .:r
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A little-known cutworm (Porosagrotis vetuta Walk.)........ H. Ch nendWj
Injurious occurrence............................................
Results from applications of arsenate of lead........................
Description.................................................
The moth....................................................,
The'lgarva ..............'.................................. .....,...|
Distribution................................................... ......
Natural enemies.............................................. AM,. "
Arsenite of zinc and lead chromate as remedies against the Colorado p
beetle............................................... Fred A. JohnBiu
Spraying experiments with arsenite of zinc and lead chromate in com ii"*i,
son with other arsenicals....................................... ,.
Spraying experiments with arsenite of zinc of different strengths.....-
A report of progress regarding the sugar-beet webworm (Loxostege aticticalis L',i
H. 0. 0.ar "
Introduction............. ........................................ ,'iAg
..d i.=.:
General appearance of the sugar-beet webworm and nature of attack.,.... Jtl
Life history and habits............... ...........................
Character of injury................................................... 019
Natural enemies ................................................... ;U|
Other checks ............................................................ ii
Experiments with remedies .......................................... HH;,
Spraying machinery................................................. .
Cost of spraying....... ................................................ 1.
Conclusion.........................................................= :
The horse-radish webworm (Plutella armoracia Busck).......... H. 0. 0Marsh.. -,:,
Introduction..................... ...................... :
Occurrence in Colorado................. ..............................,,;,
General appearance and habits......... ................................ ,
Life history........................................................ .. |
Rearing records................ ........................................
Egg-laying record....................................................
Natural enemies .......................... ..................; ..
Experiments with insecticides......................................... ,,
Recommendations for control........................................... ..
Conclusion........................ ....................
Index ........................ ... .... ....................







: ILLUSTRATIONS.


PLATE.
Page.
PLAtTE I. Fig. 1.-Geared traction sprayer, suitable for the treatment of sugar
beets against the Hawaiian beet webworm ....................... 8
Fig. 2.-Geared traction sprayer in operation in sugar-beet field...... 8
TEXT FIGURES.
Fio. 1. The Hawaiian beet webworm (Hymeniafascialis): Female moth...... 3
2. The Hawaiian beet webworm: Egg, larva, pupa, details .............. 4
3. The southern beet webworm (Pachyzancla bipunctalis): Moth, larva,
pupa, details .................................................... 19
4. The imported cabbage webworm (Hellula undalis):- Adult, larva, pupa. 28
5. The imported cabbage webworm: Wing venation; head and antenna.. 28
6. Exorista pyste, a parasite of the imported cabbage webworm ........... 31
7. Small compressed-air sprayer ......................................... 38
8. Porosagrotis vetusta: Moth, larva..................................... 50
9. The sugar-beet webworm (Loxostege sticticalis): Moth............... 58
10. The garden webworm (Loxostege similalis):- Moth, larva, pupa, details.. 58
11. A medium-sized sugar-beet plant defoliated by the sugar-beet web-
worm in July ..................................................... 60
12. Sugar beets defoliated by the sugar-beet webworm in July ........... 61
13. Large sugar-beet plants, showing defoliation and weakened roots due to
attack by the sugar-beet webworm in August....................... 62
14. Field of young sugar beets destroyed by the sugar-beet webworm in
June.............................................................. 63
15. Barrel sprayer suitable for use .against the sugar-beet webworm........ 64
16. Barrel sprayer in action against the sugar-beet webworm .............. 65
17. Four-row attachment for beet sprayer.............................. 67
18. Four-row attachment for beet sprayer.- --------. 67
19. Four-row attachment for beet sprayer ............................... 67
.20. Geared traction sprayer suitable for use against the sugar-beet webworm. 68
21. Geared traction sprayer in action against the sugar-beet webworm..... 68
22. Filling a traction sprayer for spraying against the sugar-beet webworm.. 69
23. Type of Vermorel nozzles suitable for spraying sugar beets against the
sugar-beet webworm .............................................. 69
24. The horse-radish webworm (Plutella armoracia): Adult or moth, side
view and with wings spread ....................................... 72
25. The horse-radish webworm: Larva, lateral and dorsal views.......... 72
26. The horse-radish webworm: Pupa ................................... 73
27. The horse-radish webworm: Cocoon.................................. 73

ERRATA.
S Page 33, line 7, for Agrostis read Agratis.
S Page 72, line 14, for scale like read scale-like.
S Page 76, last sentence, read, In this garden the larvx have evidently been prevented by
i.: hymenopterout parasite from causing much damage, and at present no artificial control
Measures are necessary.
IV



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