Management of Insect Pests of Broccoli, Cowpeas, Spinach, Tomatoes, and Peanuts with Chemigation by Insecticides in Oils, and Reduction of Watermelon Virus 2 by Chemigated Oil

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Abstract
Insect infestations and damage to various crops were effectively controlled with insecticides applied in center-pivot irrigation systems. On spinach, the vegetable leafminer, Liriomyza sativae Blanchard, was controlled with diazinon, and Lygus bugs Lygus spp., were controlled with carbaryl. On tomatoes, Colorado potato beetles, Leptinotarsa decemltneata (Say), and tomato fruitworms, Heliothis spp., were controlled with permethrin, and the twospotted spider mite, Tetranychus urticae Koch, was controlled with propargite. On broccoli, the cabbage caterpillar complex, Trichoplusia ni (Hübner), Ptersrapae (L.), and Plutella xylostella (L.), was controlled with fenvalerate. On cowpeas, the cowpea curculio, Chalcodermus aeneuli Boheman, was controlled with permethrin, fenvalerate, and encapsulated methyl parathion. On peanuts, thrips, Frankliniellaspp., and corn earworms, H. zea (Boddie), were controlled with carbaryl; the corn earworm was controlled with thiodicarb, and leafhoppers (Cicadellidae) were controlled with chlorpyriphos. Spread of watermelon mosaic virus 2 was reduced 50% by chemigation with Suntec 7N Oil.

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