DEVELOPMENT OF IPM PACKAGE(S)AGAINST TOMATO FRUIT BORER BY UTILIZING SOME INTEGRATED PEST MANAGEMENT TACTICS

Abstract

The study was conducted at the Central Farm of Sher-e-Bangla Agricultural University (SAU), Dhaka-1207, Bangladesh during 25 October, 2011 to 29 March, 2012 to study the effectiveness of some IPM packages against tomato fruit borer. The study was consists of seven treatments. These were as follows: T1 = Neem oil @ 4ml/l of water at 7 days interval, T2 = Neem seed kernel @ 300g/6l of water at 7 days interval, T3 =Trichogramma evanescense @ 0.25g/6m2 at 7 days interval + Neem oil @ 4ml/l of water at 7 days interval, T4 =Trichogramma evanescense @ 0.25g/6m2 at 7 days interval, T5 = Dursban 20EC 3ml/l of water at 7 days interval, T6 = Basathrin 10EC 2.5ml/l of water at 7 days interval and T7= Untreated Control. The study was laid out in Randomized Complete Block Design (RCBD) with three replications. The results of the study revealed that the highest number of fruits plant-1were harvested from T3 treated plot during flowering stage (54.00) and reproductive stage (63.15). While, the lowest number of fruit plot-1 at flowering (23.78) and at reproductive stage (39.77) was recorded from untreated control plot (T7). Consequently, the highest healthy fruits yield (247.94kg) and total fruit yield (270.99kg) was also observed in T3 treatment. On the other hand, the lowest percent of fruit borer infestation was found in the same treatment. The weight of total fruit, (2080 g) and healthy fruit, (1894 g) plot-1was harvested in T5treated plot while, the lowest total fruit (1052.10 g) and healthy fruit (890.30 g) plot-1was harvested from untreated control plot. The benefit cost ratio was the highest (1.377) in the plot of T3treatment.