author(s)
Suresh Jakhar, Vipen Kumar, Pawan Kumar Choudhary, Bhanwar Lal Jakhar and Sandeep Kumar Choudhary

abstract
Investigations on “Estimation of losses due to Fruit Fly, Bactrocera cucurbitae (Coquillett) on Long Melon in Semi-Arid Region of Rajasthan” were carried out at Rajasthan Agricultural Research Institute, SKNAU, Durgapura, Jaipur during 2017 and 2018. The incidence of fruit fly in treated plots with malathion, the mean fruit damage on number basis was 17.72 and 18.98 per cent, while in untreated plots it was 41.35 and 44.06 per cent during 2017 and 2018. Similarly, the mean fruit damage on weight basis was 14.87 and 15.88 per cent in treated plots, while it was 37.03 and 39.88 per cent in untreated plots during both the years