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VOL. 7, ISSUE 1 (2022)
Anti–insect properties of various oil formulations against major sap feeders in chilli
Authors
S Balamurugan, S Arivudainambi
Abstract
Chilli is one of the important vegetable and spice crop in all over the world. Most of the sap feeders in chilli are persistent and cause more crop loss than borers and leaf feeders. Aphids known to cause 20-30% yield loss but depending upon the degree of attack, the yield reduction may go up to 63% in chilli. Yellow mite nymphs and adults desap in large numbers from the undersurface of leaves and turn rough and brittle called murda disease. Multimode of action is the speciality of phyto-insecticides. The bioassay studies were investigated the anti – insect properties of various oil formulations against aphids and mites under in-vitro conditions. The botanicals Soap flake formulation of Neem oil, Soap flake formulation of Pungam oil, Mahua oil were tested against aphids and mites with three various concentrations of 1%, 3% and 5%. The observations were made on the mortality of aphids and mites 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.
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Pages:97-100
How to cite this article:
S Balamurugan, S Arivudainambi "Anti–insect properties of various oil formulations against major sap feeders in chilli ". International Journal of Entomology Research, Vol 7, Issue 1, 2022, Pages 97-100
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