Evaluation of Some Selected Ipm Modules for the Management of Tomato Fruit Worm (Helicoverpa Armigera Hub.)
Amjad Usman, Imtiaz Ali Khan, Maqsood Shah
Effectiveness of selected IPM modules was evaluated against H. armigera on tomato under field conditions at Newly Developmental Farm, The University of Agriculture Peshawar, Khyber Pakhtunkhwa- Pakistan during 2011. Chinar (F1 hybrid indeterminate) were transplanted in field in randomized complete block design. Eight IPM modules as treatments including control were evaluated and cost benefit ratio of these modules was also evaluated. Except control seven modules were tested with integration of three control strategies i.e., use of pheromone trap, mechanical egg destruction of target pest and use of Trichogramma chilonis as biocontrol agent. Of these seven modules, first six modules also received pesticide of different groups, i.e. Neem seed extract, indoxicarb, emmamectin benzoate, spinosad, lufenuron, chlorantraniliprole respectively. Results revealed that all IPM modules were effective than control, in reducing fruit damage by H. armigera. However, lowest fruit damage (5.74%) and maximum tomato yield (22013 kg ha-1) was obtained in M6, where use of chlorantraniliprole was integrated with other control strategies. The same module also revealed highest cost benefit ratio (1: 6.4). It was concluded that integration of different control measure along with judicial use of pesticide in IPM program not only reduced fruit losses but also increased yield and net return.