lent Station 
Nae 
Cc 
C. Pickleworms in squash flower. © D, Cucumbers deformed as result of pickleworm 
feeding. (About one-half natural size.) © E. Pickleworm-infested cucumber. 
CONTROL WITH INSECTICIDE 
Lindane and carbaryl (Sevin) are the insecticides 
recommended for controlling the pickleworm. Lindane 
usually is most effective. 
They may be applied as dusts or sprays. Dusts are 
ready to use when purchased. A spray is prepared by 
mixing a wettable powder with water. Lindane is also 
available in an emulsifiable concentrate for mixing with 
water. 
Note.—Lindane spray prepared from emulsifiable concen- 
trate is not recommended for cantaloup; it may cause unde- 
sirable flavor. Use of lindane in any form on cantaloup, 
cucumber, and winter squash may have a slight effect on flavor. 
Do not use lindane in fields to be planted later to potatoes or 
other root crops. 
Some injury to the foliage of cucurbit plants may 
occur if several days of rain or high humidity follow 
the use of carbaryl. 
Each dust or spray application should provide either 
4 ounces of actual lindane or 1 pound of actual carbaryl 
per acre. For example, apply 25 pounds of either a 
1-percent lindane dust or a 4-percent carbaryl dust per 
acre. Do not exceed these dosages. 
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D | 
TC-7344, TC-7341, TC-7342 
Forms of the insecticides that are commonly available 
for preparing sprays are listed below; opposite each is 
shown the amount that should be mixed with water in 
order to prepare a spray of the desired strength. (If you 
buy a product in which the percentage of insecticide 
differs from the one indicated here, use proportionately 
more or less of it.) 
Insecticides and forms 
Amount to apply per acre 
in which they may 
in 20 to 100 gallons of 
be purchased water 
Lindane: 
25-percent wettable powder__________ 1 pound 
or 
20-percent emulsifiable concentrate___- 1 pint 
Carbaryl: 
50-percent wettable powder____-_-___ 2 pounds 
80-percent wettable powder__________ 1 pound, 3 ounces 
4 Ibs./gal. suspension concentrate_—____ 1 quart 
The fungicides zineb and maneb are toxic to young 
pickleworms. If you apply one of these to your cucurbit 
crop for disease control, you may apply either lindane or 
carbaryl in the same dust or spray. On cucumber 
plantings, if you do this and make applications every 
5 days, you may reduce the amount of insecticide 
applied per acre by one-half. 
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