author(s)
Lakshmana, Ranganath TR and Sachin US

abstract
The Cashew Stem and Root Borer which can cause 30-40 per cent reduction in the yield by damaging the vascular tissues and leads to the death of the trees. The varietal resistance will certainly reduce the complete dependency on the chemical control and it is an ideal method fit in the Integrated pest management practices. The experimental result revealed that, the cultivars Ullal-1, UN-50, Vengurla-4 were showing tolerance to cashew stem and root borer damage. The varieties 4/6 Madhuranthakam, 9/66 Chirala, Goa 11/6 recorded 10 per cent CSRB infestation while, the varieties 7/91 Kottarakara, 1/3 Ullal and Vengurla-7 were found the most susceptible to cashew stem and root borer (30%). It was closely followed by V.RI-3 and local Puttur shows 20 per cent damage.