Screening of tomato genotypes for tolerance or susceptibility against sucking pests under field condition

Abstract

A field experiment was conducted to screen out twenty genotypes of tomato (Solanum lycopersicon L.) to find out the relative tolerance/susceptibility against sucking pests (aphid and whitefly) at Vegetable Research Plot of Bihar Agricultural College, Sabour, Bhagalpur, Bihar during three different seasons (summer 2018, kharif 2018 and rabi 2018). All the tomato genotypes showed varying degree of responses. Out of the twenty genotypes, five (5) genotypes namely Solanum peruvianum, EC 620421, BRDT-1, EC 538455 and Solanum cheesmaniae were considered tolerance/less susceptible to aphid and whitefly population in all the three seasons. Remaining other genotypes were considered susceptible.