An IPM module has been developed for the successful management of cucurbit fruit fly under island conditions. The IPM module comprising of installation of cue-lure baited traps @ 50 traps/ha for mass trapping, weekly clipping of infested fruits, foliar spray of aqueous leaf extracts of Morinda citrifolia @ 100g/l and foliar spray of spinosad 45SC or imidacloprid 17.8SL @ 0.3ml/l alternately at 15 days interval was found effective with respect to less fruit damage due to fruit fly (9%) and maximum fruit yield (10.75 t/ha) in bitter gourd and ridge gourd as compared to untreated control (39.3% fruit damage and fruit yield 5.53t/ha).
It can be adopted for fruit fly management during cucurbit cultivation under islands conditions.
Rs. 20,000/ha
IPM module for cucurbit fruit fly management gave higher cost benefit ratio of 1:3.35 in IPM and 1:2.30 in non-IPM fields of bitter gourd. Similarly, IPM module for fruit fly management in ridge gourd gave cost benefit ratio of 1:1.99 in IPM compared to 1:1.23 in non-IPM fields.
Director, Central Island Agricultural Research Institute, Port Blair-744 101, Andaman and Nicobar Islands.