In the present study different insect pests of cauliflower, cabbage and okra crops were studied. Those pests who damage these crops are Diamondback moth (Plutella xylostella), Cutworm (Varies), Green peach aphid (Myzus persicae Sulzer), Corn earworm (Helicoverpa zea), Cabbage maggot (Delia radicum). Pest problem is one of the major constraints for achieving higher production in agriculture crops. India loses about 30% of its crops due to pests and diseases each year. Most vegetable crops are subjected to pest damage seeds, roots, leaves, stems and fruits are all susceptible damage range to plant vigor to plant depth and crop loss.