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A.R.K. RAO*, K. DEVAKI and P. KOTESWARA RAO
Institute of Frontier Technology,
Regional Agricultural Research Station, Tirupathi – 517 502, Andhra Pradesh, India
A field study was conducted to know the efficacy of various natural insecticides against larval population of citrus butter-fly P. demoleus during 2011-12 at AICRP on Citrus, Tirupati. Among various natural insecticides Bt at both concentrations (0.005% and 0.025%) offered hundred percent mortality against citrus butterfly and retained its residual action upto ten days. The order of efficacy of rest of the treatments was NSKE (81.08%) azadirachtin (76.03%), neem soap (69.87%), pongamia oil (66.17%), pongamia soap (56.61%) and garlic extract (41.10%).
Citrus, Citrus butterfly, Natural products