Management of Major Insect Pests of Tomato using Multiple Resistant Tomato Hybrid Arka Rakshak

Abstract

An attempt was made to demonstrate multiple resistant tomato hybrid Arka Rakshak for resistance against fruit borer and fungal diseases in field. Crop damage caused by tomato borer, whitefly and thrips borer was measured on the basis of damaged fruits, leaves separately. In order to assess the per cent fruit damage, the damaged fruits on five randomly selected tagged plants were counted as against total available fruits on the observed plants. Evaluation of host plant resistance in tomato using multiple resistant tomato hybrid Arka Rakshak for resistance against major insect pests of tomato were conducted during Kharif season of 2015 - 16 in the 10 farmers field at Karumandurai village of Salem district. The pretreatment count of leaf curl infection /plant was ranged from 5.64 to 6.22. The leaf curl infection in plant ranged from 3.22 to 12.92 per cent, 6.86 to 16.32 per cent and 7.82 to 24.62 per cent in vegetative, flowering and fruiting stage respectively. The yield was worked out baed on the healthy fruits harvested. The economics of multiple resistant tomato hybrid Arka Rakshak, variety sivam and untreated control were computed on the basis of current labour cost, cost of inputs and average market rate of tomato fruits.