International Journal of Academic and Applied Research (IJAAR)   Year: 2019 | Volume: 3 | Issue: 6 | Page No.: 9-15 Assessment of Pest Population and Repellency of Neem Seed Extract on Different Eggplant Varieties in Uthal Enayat Aziz, Ghulam Jilani, Abdul Ghaffar Khoso, Farrukh Asghar, Ameer Uddin, Nadir Ali, Khalil Asghar Abstract: The study carried out on Assessment of Pest Population and Repellency of Neem Seed Extract on Different eggplant Varieties in Uthal during 2016-2017. Repellency of Neem Seed Extract was studied against insect pest on eggplant plants by free choice method in the green house of the Faculty of Agriculture, Lasbela University of Agriculture, Water and Marine Sciences Uthal, Pakistan. Three varieties of eggplant sown were sprayed with Neem Seed Extract against whitefly, jassid, aphid and borer. The population of these insect pests and predators which was compared on three varieties of eggplant crop sown in Randomized Complete Block Design (RCBD). The results showed that varietal preference of insect pests differed significantly. On eggplant, variety per leaf population was 2.73 and 2.42 on F1-advanta-305 and PPL respectively. The higher population was 3.27 whitefly / leaf on 25th January. It was 1.31 and 1.30 jassids / leaf on Black long and PPL eggplant varieties respectively but higher population was 2.68 jassid / leaf on 25th January. It was 1.31 and 1.30 on Black long and PPL varieties respectively. The apex population was 2.48 aphid / leaf on 25th January. While the predator population was 0.98 and 0.95 predators / plant on F1- advanta-305 and Black long varieties respectively. The peak population was 2.06 predator / plant on 4th February.