8-2-10-INCIDENCE OF RED PUMPKIN BEETLE AND FRUIT FLY ON DIFFERENT VARIETIES OF SWEET GOURD



S. Ahmed, N. Akhter* and M. A. Latif
*Corresponding author E-Mail: nurmohalsau@yahoo.com

Abstract

The study was conducted in the central farm of Sher-e-Bangla Agricultural University (SAU), 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 e.g., Sweet Queen, Pronoy F1 (hybrid), Thai Sweet, Big Boss, Monika, Shokti, and Syndrila were used as treatments. The study was laid out in Randomized Complete Block Design (RCBD) with four replications. Data on infestation levels at different growth stages were recorded to find out the tolerant variety of sweet gourd for better production. The highest infestation of red pumpkin beetle (RPB) was found in Thai sweet (32.00 %) variety followed by Pronoy F1 (20.00 %) variety. On the other hand the lowest infestation was found in Big Boss (5.00 %) and Shokti (5.00 %) varieties. Big Boss and Shokti varieties were found more tolerant to the RPB than the other varieties. Highest infestation (23.00 %) was found in Thai sweet and Pronoy F1 caused by cucurbit fruit fly and the lowest infestation was found in Shokti (2.00 %) variety. Shokti variety was more tolerant to the red pumpkin beetle and cucurbit fruit fly than the other varieties and it encouraged growth giving higher yield (25.23 t/ha).

Key words: Sweet gourd, pumpkin beetle and fruit fly.

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