Studies on the major insect pest of brinjal Solanummelongena Land their management

Abstract

newline Vegetables play an important role in human nutrition and health by providing minerals, micronutrients, vitamins, antioxidants and dietary fiber. Vegetable cultivation is a significant part of the national agricultural economy, especially in the developing world. Brinjal (SolanummelongenaL.) also known as eggplant is a common and popular vegetable crop grown in the subtropics and tropics. It belongs to family Solanaceae . The insect pests are the major constraint in production of brinjal and are the main cause of production loss. But only few of them caused severe damage to the crop. Among them, aphid, jassid, whitefly and shoot and fruit borerare most important pests that damage brinjal severely. Hence, keeping the above points in view, the present investigation was carried out Studies on the major insect pest of brinjal (SolanummelongenaL.) and their management during the experimental period. Efforts were also made to evolve most effective and economical control of major insect pests attacking the crop at Agricultural Research Farm, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, during Kharif 2014-15 and 2015-16. newlineThirteen varieties/genotypes of brinjal were screened out for their resistance/susceptibility against the aphid, Aphis gossypii (Glover), jassidAmrascabiguttulabiguttula(Ishida), whitefly, Bemisiatabaci(Gennadius) and shoot and fruit borer Leucinodesorbonalis (Guenee). The data revealed that none of the genotypes was immune to the attack of insect pests. newlineDuring both the year of study,thirteen varieties/genotypes were screened against A. gossypii and observed that the mean number of aphids per three leaves varied from 3.27 to 7.30 during 2014-15 while in 2015-16 it varied from 3.68 to 8.00 per three leaves. During 2014-15 the minimum aphid population per three leaves was observed in KashiTaru (3.27) followed by TRB-9 (3.33) while maximum aphid population per three leaves observed in DBR-31 (7.30) followed by JB-8 (7.00). Whereas in 2015-16 also maximum aphid.