INCIDENCE OF RED PUMPKIN BEETLE AND FRUIT FLY ON DIFFERENT VARIETIES OF SWEET GOURD

Abstract

The experiment was conducted in the central farm of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka during the period from April to July, 2015 to find out the incidence of red pumpkin beetle and fruit fly on different varieties of sweet gourd. Seven varieties of sweet gourd. V1: Sweet Queen V2: Pronoy F1 (hybrid), V3: Thai Sweet, V4: Big Boss, V5: Monika, V6: Shokti and V7: Syndrila were the experiment material. The experiment was laid out in Randomized Complete Block Design (RCBD) with four replications. Data on infestation level of different growth stages were recorded to find out the tolerant variety of sweet gourd for better production. The maximum infestation occurred by Red pumpkin beetle in Thai sweet (32.00 %) variety followed by Pronoy F1 (20.00 %) variety. On the other hand the minimum infestation percentage occurred in Big Boss (5.00 %) and Shokti (5.00 %) variety. Big Boss and Shokti varieties were found less susceptible to the Red pumpkin beetle than the other varieties. Maximum infestation caused by cucurbit fruit fly were in Thai sweet (23.00 %) and Pronoy F1 (23.00 %) varieties and the minimum infestation occurred by fruit fly was found in Shokti (2.00 %) variety. Shokti variety also showed the lowest susceptible to cucurbit fruit fly. Shokti (V6) variety is less susceptible to the red pumpkin beetle and cucurbit fruit fly than the other varieties and it gave better results on growth and yield (25.23 t/ha) of sweet gourd.