Succession and incidence of insect pests and their natural enemies in okra

Abstract

This study was aim to observe and assessment of succession and Incidence of Insect pests and their natural enemies on Okra. The data revealed that insect pests and their natural enemies viz., three orders (Hemiptera, Lepidoptera and Coleoptera) and six families (Cicadellidae, Aphididae, Aleyrodidae, Pyrrhocoridae, Noctuidae and Coccinellidae) were noticed. The seasonal incidence of pests viz., Jassid, whitefly and aphid were notice in 34th (4th) week of August, while, shoot and fruit borer and red cotton bug were observed in 37th (3rd) week of September. However, natural enemies viz., Leady bird beetle and predator mite were noticed in 36th (2nd) and 35th (1st) week of September, respectively, during 2015-16 and 2016-17. The data revealed that maximum activity was recorded in September. The correlation studies were made between the incidence of insect pests and selected weather parameters. The Correlation of meteorological parameters with different insect pests were notice positively and highly significant to maximum temperature, while, minimum temperature, relative humidity and rainfall were found negative and correlation.