Group Title: Mimeo Report - University of Florida Everlgades Experiment Station ; EES63-24
Title: Control of soil insects, sweet corn insects, and celery insects
CITATION THUMBNAILS PAGE IMAGE ZOOMABLE
Full Citation
STANDARD VIEW MARC VIEW
Permanent Link: http://ufdc.ufl.edu/UF00067450/00001
 Material Information
Title: Control of soil insects, sweet corn insects, and celery insects
Series Title: Everglades Station Mimeo Rpt.
Physical Description: 5 p. : ; 29 cm.
Language: English
Creator: Harris, Emmett D
Everglades Experiment Station
Publisher: Everglades Experiment Station
Place of Publication: Belle Glade Fla
Publication Date: 1963
 Subjects
Subject: Insect pests -- Control -- Florida   ( lcsh )
Plants -- Disease and pest resistance -- Florida   ( lcsh )
Genre: non-fiction   ( marcgt )
 Notes
Statement of Responsibility: Emmett D. Harris, Jr.
General Note: "May, 1963."
Funding: Everglades Station Mimeo Report ;
 Record Information
Bibliographic ID: UF00067450
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 63678156

Full Text


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Everglades Station Mimeo Rpt. 63-24


May, 1963


Control of Soil Insects, Sweet Corn Insects, and Celery Insects

Emmett D. Harris, Jr.


The results shown in this report are not intended as insect control recom-
mendations. One should refer to Florida Agriculture Extension Circular 193B
or consult the County Agent, Experiment Station Entomologist, or the insecticide
label for insect control recommendations.

SOIL INSECT CONTROL

All insecticides were applied broadcast and immediately disked into the
soil to a depth of about 6 inches.

Experiment I Kepone, Aldrin, and Phosdrin for control of Wireworms(Conoderus
spp. and Melanotus communis (Gyll.)) and the lesser cornstalk
borer (Elasmopalpus lignosellus (Zeller)). Aldrin was applied on October 4;
the other insecticides were applied on October 1. Florigold 107 sweet corn was
planted on October 16.


Amount


Insects per 100 Plants
Lesser
Wireworms corn-
Cono- M.com- stalk


Percent
damaged


Plants
per
100


Insecticide Formulation per acre derus munis TOT borer. plants feet.
Kepone 5% Cornmeal bait 100 lbs. 0.5 0.5 1.0 10 37 67
Kepone 5% Cornmeal bait 50 lbs. 0.4 1.3 1.7 3 38 79
Kepone 50' Wettable Powder 10 lbs. 0.5 0.9 1.4 6 24 104.
Phosdrin (2 lb./gal.)EC 10 qts 0.5 0.5 1.0 7 18 110
Aldrin (4 lb./gal.) EC 5 qts. 0.5 2.2 2.7 1 4 :.190
Untreated --- 5.4 0 5.4 8 20 109.


Experiment II Parathion Spray and Granules, Heptachlor Spray and Bait, and a
Heptachlor-Parathion Spray for Wireworm Control. Parathion
granules and Heptachlor bait were applied on October 2. Sprays were applied
on October 4. Florigold 107 sweet corn was planted on October 16.


I Prepared for presentation at the Annual Vegetable Crops Field Day held at
the Everglades Experiment Station, May 9, 1963.

/ Assistant Entomologist, Everglades Experiment Station, Belle Glade, Fla.













Insecticide Formulation
Heptachlor (2 Ib/gal) EC
Parathion (4 lb/Gal)
Heptachlor-Parathion EC's s
Parathion 10% Granules
Heptachlor 5% Cornmeal
Untreated


Wireworms per 100 Plants


Amount
per acre Conoderus
10 qts. 25
5 qts. 0
5 2.5 qts. 2
50 lbs. 2
100 lbs. 23
-- 15


M. communis
3
10
2
13
7
2


Experiment III Aldrin Spray, Kepone Bait and Spray, and Kepone-Aldrin Spray
for Control of Wireworms and Banded Cucumber Beetle, Diabrotica
balteata LeConte, Grubs. Each insecticide was applied on November 29 and Flori-
gold 107 sweet corn was planted on November 30.


Insecticide Formulation
Aldrin (4 Ib/gal) EC
Kepone 50% Wettable Powder
Aldrin-Kepone Spray
Kepone 5% Cornmeal Bait
Untreated


Amount
per acre
5 qts.
10 Ibs.
2.5 qts.-5 lbs.
100 lbs.


Insects per 100 Plants
Wireworms Cucumber
Cono- M.com- beetle
derus munis TOT grubs
4 5 9 59
3 3 6 22
1 7 8 13
o 7 7 18
6 9 15 43


CORN STEM WEEVIL, LESSER CORNSTALK BORER AND BUDWORM CONTROL ON SWEET CORN

Experiment I DDT-Toxaphene Combinations for Corn Stem Weevil Control on Flori-
gold 107 Sweet Corn. Insecticide sprays were applied twice
weekly from October 22 to November 12, 1962 to sweet corn that was planted on
October 16 and emerged on October 20.


Ratio:
Toxaphene
to DDT

4/1
2/1
1/1
1/2
1/4
0/2
Untreated


Pounds
Actual Toxicant
per 100 Gallons
Toxaphene DDT


1.6
1.33
1.0
0.67
0.4
o


0.4
0.67
1.0
1.33
1.6
2.0


Pts. EC per
8 lb/gal
Toxaphene


1.6
1.33
1.0
0.67
0.4
o


100 Gals.
2 lb/gal
DDT

1.6
2.67
4.0
5.33
6.4
8.0


Percent
Mined
Total Plants


3.2
4.0
5.0
6.0
6.8
8.0


TOT
28
10
4
15
30
17


Plants
per
100 feet
176
201
189
142
170
186


----------










Experiment II Imidan Emulsion Dosages and Imidan Wettable Powder Spray for
Control of Corn Stem Weevils, Budworms, and Lesser Cornstalk
Borers on Sweet Corn. Sprays were applied twice weekly from October 22 to
November 12, 1962 to Florigold 107 sweet corn that was planted on October 16
and emerged on October 20.


Imidan Formulation
3 lb/gal EC 5.33 pts.
3 Ib/gal EC 2.67 pts.
3 lb/gal EC 1.33 pts.
3 lb/gal EC 0.67 pts.
50%tO P -. 2.0-lbs.
Untreated ---


.Pounds
Actual Imidan
per 100 Gals.
2.0
1.0
0.5
0.25
.. 1.0


Percent Damaged Plants by:
Corn stem Lesser Corn-
weevil stalk borer Budworms
2 4 8
5 7 21
14 17 20
14 16 33
14. 18 .20
46 22 70


Experiment III DDT-Toxaphene Combinations and Two Imidan Dosages for Corn Stem
Weevil and Budworm Control. Emulsions were applied twice weekly
from March 20 to April 8, 1963, to Florigold 107 sweet corn that was planted on
March 15 and emerged on March 19.


Pounds
actual
toxicant
per
100
Gals.


Insecticide Formulation


Pints
EC
per
100 Gals.


% Damaged
corn
stem
weevil


Plants by:


Budworms


DDT(2 lb/gal) EC Toxaphene (8 Ib/gal)EC
DDT(2 lb/gal) EC Toxaphene (8 Ib/gal)EC
DDT(2 Ib/gal) EC Toxaphene (8. b/gal)EC
DDT (2 lb/gal) EC
Imidan (3 lb/gal) EC
Imidan (3 lb/gal) EC
Untreated


1.5 0.5
1.0 1.0
1.5 1.5
2.0
2.0
1.0


CELERY INSECTS

Experiment I Dibrom Gailonages and Diazinon Emulsion and Wettable Powder Spray
for Control of Serpentine Leafminers and Caterpillars on Celery.
Utah 52-70-2-13 celery was transplanted on January 10, 1963. Sprays were applied
weekly from January 17 until February 28. Thereafter they were applied twice
weekly. Diazinon was applied until April 4, Dibrom until April 8.


Plants
per
100 ft.
164
152
152
149
162
131


-0.5
-1
- 1.5
8
5.33
2.67


1.9
1.6
0.4
0.8
2.8
8.7
47.0













Insecticide
formulation

Average of six dates,
Dibrom 8 lb/gal EC
Dibrom 8 Ib/gal EC
Dibrom 8 lb/gal EC
Diazinon 4 Ib/gal EC
Diazinon 50% WP
Untreated


Amount
per 100
gallons

each one
2 pints
1 pint
0.5 pint
1 pint
1 pound
----


Gallons
per a
acre


Mines per 100 Leaflets(Cumulative)
Moderate Slight Very
or or slight or
Severe Worse Worse Worse


day after application:
37.5 75 2
75 150 2
150 300 6
75 150 2
75 150 3
--- 25


109
88
117
34
43
205


b
Four days after final Dibrom spray; eight days after final Diazinon Spray:


Dibrom 8
Dibrom 8
Dibrom 8
Diazinon
Diazinon
Untreated


Lb/gal EC
lb/gal EC
Lb/gal EC
4 lb/gal EC
50%I WP


Dibrom 8
Dibrom 8
Dibrom 8
Diazinon
Diazinon
Untreated


Lb/gal EC
Lb/gal EC
Lb/gal EC
4 Ib/gal EC
500% wP


2 pints
1 pint
0.5 pint
1 pint
1 pound


Percent Plants
Damaged by Caterpillars


75
150
300
150
150


a. Gallonages increased as the number of nozzles per row was increased from two
to four to maintain coverage as the plants grew.


b. The recommended minimum interval between last application
7 days for Diazinon and 4 days for Dibrom.


and harvest is


Experiment II Guthion Formulations for Control of Serpentine Leafminers and
Caterpillars on Celery. Utah 52-70-2-13 celery was transplanted
on January 10, 1963. Sprays were applied weekly from January 17 until March 28
at 75 to 150 gallons per acre depending.on crop size.


198
162
194
154
180
263


2 pints
1 pint
0.5 pint
1 pint
1 pound


75
150
300
150
150
----'


172
177
157
170
110
158


322
265
280
392
312
217










Mines per 100 leaflets (cumulative)!


Insecticide
formulation


Amount/
100 Gals.


Moderate
or
Severe Worse


Average of six dates, each one day after application:


Guthion 25% WP
Guthion 1.5 lb/gal EC
Methyl Guthion Ethyl Guthion
2 Ib./gal EC
Untreated


2 Ibs.
2.67 pints

2 pints
---


Seven days after the final application:


Guthion 25% NP
Guthion 1.5 lb/gal EC
Methyl Guthion Ethyl Guthion
2 lb/gal EC
Untreated


2 Ibs.
2.67 pints

2 pints
-- m


Fourteen days after the final application:


Guthion 25% WP
Guthion 1.5 lb/gal EC
Methyl Guthion Ethyl Guthion
2 Ib/gal EC
Untreated


2 Ibs.
2.67 pints

2 pints
---


Percent Plants Damaged
by Caterpillars


Guthion 25% WP
Guthion 1.5 lb/gal EC
Methyl Guthion Ethyl Guthion 2 lb/gal
Untreated


2 Ibs.
2.67 pints
EC 2 pints
--


EES Mimeo Rpt. 63-24
400 copies


Slight
or
Worse


Very
Slight
or Worse


20
11

17
168


20
15

23
125


95
135

108
150


120
97

110
185


103
97

115
137


207
270

255
175


--




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