Studies were carried out on seasonal incidence, screening of genotypes and bio-efficacy of insecticides against pest complex of brinjal (Solanum melongena L.) at Regional Horticultural Research Station Farm, NAU, Navsari during 2011-12. The results revealed that the incidence of sucking pests viz., jassid (Amrasca biguttula biguttula Ishida) started from November (3.20 jassids/three leaves) and reached to a peak level (22.46 jassids/three leaves) during December, whereas whitefly (Bemisia tabaci Gennadius) started from November (7.27 whiteflies/three leaves) and reached to a peak level (25.73 whiteflies/three leaves) during January. The shoot damage by L. orbonalis started from December (5.87%) and reached to a peak level (24.50%) during December. The fruit damage by Leucinodes orbonalis started from December (11.53%) and reached to a peak level (45.71%) during January. Among various weather parameters, maximum, minimum and average temperature had highly significant negative influence on the population of all the insect pests.