Effect of oil formulations against Chilli thrips, Scirtothrips dorsalis Hood under laboratory conditions

Chilli thrips is highly polyphagous and documented. Multimode of action is the speciality of phyto-insecticides and they are safer to mammals, birds etc. The bioassay studies were investigated the efficacy of selected oil formulations against chilli thrips under in-vitro conditions. The botanicals Soap flake formulation of Neem oil (Azadirachta indica), Soap flake formulation of Pungam oil (Pungamia glabra), Mahua oil (Madhuca longifolia) were tested against chilli thrips with three various concentrations of 1, 3 and 5%. The observations were made on the mortality of thrips at 6h, 24h and 48h, respectively. Two different types of bioassay viz., onplant and poison food bioassay were conducted. Results revealed that the Mahua oil 5% showed with high mortality in both type of bioassays followed by pungam oil soap flakes 5%.