Department of Entomology and Agricultural Zoology, Institute of Agricultural Sciences, BHU, Varanasi-221005
*Present address: Crop Protection Division, Central Research Institute for Jute and Allied Fibres, Nilgunj, Barrackpore, Kolkata -700120
Online published on 3 December, 2011.
The abundance of fruit fly in cue-lure baited trap was observed throughout the year, with two peaks in summer and kharif coinciding with 14 SW (standard week) and 43 SW, respectively in bitter gourd. In kharif, maximum damage (62.70%) occurred in 15, 45 SW, and second peak with 49.70% damage observed during 45, 15 SW period. The temperature (maximum and minimum) had significantly positive correlation with abundance, damage and pupal population; temperature during one, two and three preceding weeks had slightly greater impact than that of the prevailing week. Other abiotic factors had non-significant effect on adult activity, damage and pupal population.
Bactrocera cucurbitae, monitoring, abiotic factors, bitter gourd
