BIORATIONAL MANAGEMENT OF CUCURBIT FRUIT FLY ON SWEET GOURD BY USING SOME NEW GENERATION INSECTICIDES

Abstract

The experiment was carried out in the central farm of Sher-e-Bangla Agricultural University, Sher- e-Bangla Nagar, Dhaka to find out biorational management of cucurbit fruit fly on sweet gourd by using some new generation insecticides during rabi season from November, 2019 to April, 2020. There were five treatments viz, T 1 =Fytomax 3 EC @ 1 ml/L of water, T 2 = Pheromone trap (Cuelure) + Success 2.5 SC @ 650 ml/ha, T 3 = Bait trap + Success 2.5 SC @ 650 ml/ha, T 4 = Ripcord 10 EC @ 1 ml/L of water (Farmers’ practice), T 5 = Untreated control. All treatments were applied at 7 days interval. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. Among the treatments, Pheromone trap (Cuelure) + Success 2.5 SC @ 650 ml/ha showed the best performance in controlling cucurbit fruit fly. The highest yield (37.44 t/ha), the healthy fruits (34.21 t/ha) and lowest infested fruit (3.23 t/ha) were obtained from the treatments T 2 followed by treatments T 1. The lowest percent fruit yield (18.37 t/ha) healthy fruit (12.04), and highest infested fruit (6.33 t/ha) were obtained from T 5 (untreated control). The use of Pheromone trap (Cuelure) + Success 2.5 SC could be effectively utilized in the cucurbit fruit fly management.