Effectiveness of some selected insecticides for management of soil insects on carrots in the lower Rio Grande Valley. Many different species of soil insects occur in the LRGV, and several can cause considerable economic damage in vegetables.
Chemical control continues to be a mainstay in preventing crop damage.
Diazinon and several other organophosphates have been effective against these soil insects. Aztec has been used to control corn rootworms and other soil insects, and has been labeled for field crops to control cutworms, wireworms, seedcorn maggots and white grubs. The field was surrounded by unweeded plots of peppers, cabbage, and collards. The plants were 2 in apart. Treatment plots were separated by a 2-ft alleyway.