Two field experiments on okra (Cv: Shakti) were conducted, at Nathapatti (I season : July 2012 to October 2012) and Pazhayasukkampatti (II season : December 2012 to March 2013) of Tamil Nadu to evaluate the safety of new formulation Emamectin benzoate 5 WG at different doses (100, 125 and 150 g/ha) against the standard check, Emamectin benzoate 5 SG (135 and 170 g/ha), Lambda cyhalothrin 5 CS (300 ml/ha) and Pyridalyl 10 EC at 500 ml/ha for their safety to coccinellid predators in okra eco-system. Observation on the population of coccinellid was recorded prior to spraying and at 5 and 10 days after each spraying from ten randomly selected plants in each replication and untreated check. The results showed that Emamectin benzoate 5 WG was found to be safer to coccinellidat all concentrations tested. The highest population recorded in plots treated with Emamectin benzoate 5 WG at 100 g/ha followed by Emamectin benzoate 5 WG at 125 g/ha, respectively.
Coccinellid, Emamectin benzoate 5 WG, Okra, Safety
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