Evaluation of the Susceptibility of Some Eggplant Cultivars to Green Peach Aphid, Myzus persicae (Sulzer) (Hemiptera: Aphididae)

Due to the detrimental side-effects of synthetic pesticides, use nonchemical strategies in management insect pests is necessary. In present study, susceptibility fourteen eggplant cultivars green peach aphid (M. persicae) were investigated. According preliminary screening tests, ‘Long-Green’, ‘Ravaya’ and ‘Red-Round’ as relatively resistant, ‘White-Casper’ ‘Pearl-Round’ susceptible recognized. antixenosis highest hosting preference was documented for ‘White-Casper’. Population growth parameters used evaluation antibiosis. The lowest developmental time (d) observed on ‘Long-Green’ (4.33 d) (3.26 d), respectively. intrinsic rates population increase (rm) (0.384 d−1) (0.265 d−1), Significant differences height fresh dry weight infested noninfected plants. Plant resistance index (PRI), a simplified way assess all mechanisms, provides particular value determine proper resistant cultivar. greatest PRI ‘Long-Green’. general, showed least, displayed most among tested by M. persicae, which might be useful integrated this pest.