Department of Entomology, College of Agriculture, J.N. Agricultural University, Gwalior, 474 002, Madhya Pradesh.
The pests feeding on okra were monitored during kharif 1980 and summer 1981 seasons at Gwa1ior (M.P.). The jassid (Amrasca biguttula biguttula Ishida) remained active throughout the crop in both the seasons. Low humidity during kharif appeared to be conducive for the population build up. Shoot and fruit infestation due to borer (Earias vitella F.) in kharif ranged between 5.5- to 23.9 and 25.93 to 40.91% and in summer season it ranged bet. ween 4.65 to 17.15 and 1.75 to 16.62% respectively. Temperature and humidity had no apparent effect on pest activity in kharif but in summer the pest activity increased with the rise in humidity. Plant infestation due to petiole maggot on kharif and summer okra ranged from 2.56 to 22.91 and 1.27 to 16.31% respectively. Aphid, green semilooper, leaf roller, grey weevil, white fly and mite were found feeding on the leaves and red cotton bug, dusky cotton bug and green plant bug on the stem and fruits. Blister beetle activity was noted for a short period on the flowers.
