4. FIELD EVALUATION OF EMAMECTIN BENZOATE 5 WG AGAINST SPIDER PREDATORS IN OKRA ECO-SYSTEM by PARTHIBAN, P., MURALI BASKARAN, R. K., RAJAVEL, D. S. AND CHINNIAH, C.
Abstract
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 spider predators in okra eco-system. Observation on the population of spider 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 spider at 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.
KEY WORDS: Emamectin benzoate 5 WG, Okra, Safety, Spider.
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