Screening of bitter gourd genotypes against infestation of fruit fly (Bactrocera Cucurbitae Coquillett.)

Abstract

An experiment was conducted during Kharif season 2014 at the Department of Vegetable Science, College of Agriculture, OUAT, Bhubaneswar, to work out the varietal resistance of bitter gourd (Momordica charantia L.) against the melon fruit fly (Bactrocera cucurbitae Coquillett.) infestation under natural epiphytotic condition. The experiment results of varietal resistance trial showed that Thusi with (11.05%) fruit infestation was found to be least susceptible to the melon fruit fly attack followed by Improved Katahi (11.26%), Preethi (13.31%), Phule Green Gold (14.88%) and Hirkani (15.24%). The variety of Pusa Aushadhi was found to be most susceptible to this fruit fly having (77.59%) fruit infestation followed by Arka Harit (77.42%) and NDUAT-3 (76.83%). No one of the genotypes was found Immune and highly resistance, out of 23 genotypes three were found to be susceptible as well as highly susceptible, eleven were moderately resistance and six were resistance.