Studies on Species Diversity and Management of Major Sucking Insect Pests of Pomegranate

Abstract

The present investigations were carried out on studies on species diversity and newlinemanagement of major sucking insect pests of pomegranate under field cultivation newlineduring 2020-22 at Managuli, Vijayapura and Dept. of Entomology, CoA, Vijayapura, newlineKarnataka. newlineThe roving survey was conducted at monthly intervals to collect the different newlineinsect pests and their natural enemies in pomegranate during 2020-22 in the farmers newlinefield of Bagalkote and Vijayapura districts. During the study period ten species of insect newlinepests and four species of natural enemies were found associated with pomegranate. The newlineinsect pest were aphids, thrips, whitefly, mealybugs, scales, mites, fruit borers and stem newlineborers. Insect predators viz., coccinellids, green lace wings, syrphids and spiders. The newlinedata on roving survey revealed that the Bagalkote district recorded maximum incidence newlineof insect pests and their natural enemies than Vijayapura district. newlineThe study on surveillance of major pest of pomegranate revealed that the newlinemaximum number of sucking pests were recorded in Ambe bahar followed by Hasta newlinebahar and Mrig bahar. While, the maximum incidence of fruit borer damage was newlineobserved during Mrig bahar. newlineThe study on biology of thrips, Scirtothrips dorsalis was carried in two seasons newlineand the results revealed that during Ambe bahar 2021, the egg, first instar larva, second newlineinstar larva, pre-pupal and pupal period were ranged from 1.77-2.75, 2.00-3.28, 3.82- newline5.47, 0.75-1.00 and 1.47-2.50 days, respectively and complete life cycle ranged from newline12.70 to 20.83. During Hasta bahar 2021-22, the egg, first and second instar larva, prepupal newlineand pupal period were ranged from 3.51-4.68, 2.00-3.92, 4.07-5.52, 1.03-1.82 and newline2.75- 3.64 days, respectively. The total developmental period ranged from 17.47 to newline26.42 days. newlineThe effect of in-situ vermiculture technique on incidence of sucking pests of newlinepomegranate after the two seasons revealed that the treatment earthworms at 200/plant (1,48,000/ha) + FYM at 30kg/plant + crop residue mulching applied plot was recorded newlineleast nu