Studies on the bio-safety of insecticides to Chrysoperla zastrowi sillemi (Esben-Peterson) (Neuroptera: Chrysopidae) under labarotary conditions

Studies on bio-safety of insecticides to Chrysoperla zastrowi sillemi (Esben-Peterson) (Neuroptera: Chrysopidae) second instar grubs and adults were conducted under the laboratory conditions at ARS, Daharwad, Karnataka during the period 2020-21. The results of the experiment indicated that among the fourteen insecticides treated,, the lowest toxicity was found in the treatment of azadirachtin 0.03% EC followed by spinetoram 11.7% SC, flonicamid 50% WG. Whereas, the highest toxicity was found in the treatment imposed with the acephate 50% + imidacloprid 1.8% SP followed by imidacloprid 6% + lambda-cyhalothrin 4% SL, lambda-cyhalothrin 5% EC, profenofos 50% EC against second instar grubs. At 24 hrs of exposures to insectides for adults revealed that, lowest toxicity was recorded in the treatment of azadirachtin 0.03% EC followed by spinetoram 11.7% SC, diafenthiuron 50% WP, while the highest toxicity was recorded in treatment of profenofos 50% EC fallowed by lambda-cyhalothrin 5% EC and acephate 50% + imidacloprid 1.8% SP.