Wireworms forced to
the soil surface


Insecticide Formulation
4% Kepone on Corimeal
5% Diazinon on Corn Grits
5% Diazinon on Walnut
Shell Gran.
Kepone (3 lb/gal)
Flowable
Diazinon (4 Ib/gal) EC
Aldrin (4 lb/gal) EC
Diazinon EC.- Aldrin EC

Untreated


Amount
per Acre
125 Ibs.
100
100


per 1,000
Southern
Potato
Wireworm
 0
 2.1
 0.7


1.33 gal. 6.2


1.0
1.0
0.5 gal.
each


3.5
5.5
2.1


sq. ft.
Corn
Wire-
worm I
0
7.6
8.3


total
0
O 7
9.7
8.3


3.5 9.7


1.4
1.4
4.8


4.9
6.9
6.9.


Live Wireworms
per 100 plants
southern Corn
Potato Wire-
Wireworm worm Total
 0 7.5 7.5
 0.8 4.2 5.0
 0 8.3 8.3

 0 16.7 16.7

 0 10.0 10.0
 5.0 1o.o 15.0
 0 14.2 14.2


0 0 1.7 20.0 21.7


Experiment III Kepone Baits. Baits were applied broadcast on October 10,
1963, and immediately disked-in to a depth of about 6 inches. Florigold 107
sweet corn was planted on October 11.


Insects per.100 Plants


 Lbs.
 per
Kepone and Bait Acre


4% on Cornmeal
4% on Sugarcane Bagasse
4% on Cornmeal + 5% Molasses
4% on Corn Cob Grits + 5%
Molasses
4% on Cornmeal
4% on Cornmeal + 5% Molasses
2% on Cornmeal
Untreated


100
100
100
100 .

50
50
100


Corn
Wire -
worms


4.6
4.6
7.1
7.1

7.5
9.6
9.2
14.2


Cucumber
Beetle
Grubs

0.8
0.8
1.3
1.7

2.1
2.5
1.7
4.6


Total

5.4
5.4
8.4
8.8

9.6
12.1
10.9
18.8


Plants/
Acre ,000


31.2
29.4
30.5
28.2

29.2
27.3
28.9
26.4


Experiment IV Aldrin, Kepone, and Parathion Combinations for Soil Insect
Control. These insecticides were applied in emulsions at the rate of 4
pounds of total actual toxicant per acre. In 2-way mixtures each insecti-
cide was used at 2 pounds of actual toxicant per acre. In the 3-way mixture
each was used at 1.33 pound. Treatments were applied broadcast on October
4, 1963, and immediately disked into the soil to a :depth of about 6 inches.
Florigold 107 sweet corn was planted on October.11.


(Table on the next page.)