EFFECT OF PHEROMONE TRAPS AND TRAPPING LOCATIONS ON CAPTURING MALE MOTH OF BRINJAL SHOOT AND FRUIT BORER AND FRUIT YIELD OF BRINJAL

Abstract

The experiment was conducted during the period from November 2013 to April 2014 at the research farm of Sher-e-Bangla Agricultural University (SAU), Dhaka to study the effect of pheromone traps and trapping locations on capturing male moth of brinjal shoot and fruit borer and fruit yield of brinjal. Brinjal variety Shingnath was used as the test crop of this experiment. Four types of pheromone traps were placed at two locations in a two factor Randomized Complete Block Design (RCBD) with three replications. The pheromone traps types were T1: Funnel type trap; T2: GME trap; T3: BARI trap I; T4: BARI trap II and two locations were L1: Canopy level and L2: Upper canopy level. Among differnt traps types GME trap was more effective for catching male moth (6.43 male caught per trap per day), gave the lowest shoot and fruit infestation (5.21%, 5.82%, 6.73% and 4.52%, 5.92%, 6.69%, respectively) at early, mid and late fruiting stages and produced more insect free brinjal fruits (45.36 t/ha). Pheromone traps located at canopy level showed better performance for catching male moth (5.24 male caught per trap per day), and lowest shoot and fruit infestation (8.07%, 10.78, 11.94% and 9.44%, 11.81%, 14.13%, respectively) at different fruiting stages and produced more insect free brinjal fruits (42.92 t/ha). GME traps located at canopy level caught the highest number of male moths, reduced maximum percentage of shoot and fruit infestation and gave more yield of fruits. GME trap and located at canopy position was more effective for the management of brinjal shoot and fruit borer.