alexa Abstract | FIELD EFFICACY OF SOME NEW INSECTICIDES AGAINST RICE STEM BORER AND GUNDHI BUG IN IRRIGATED RICE ECOLOGY


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Abstract

Eleven insecticides including new insecticide sulfoxaflor and check insecticide monocrotophos were evaluated in field condition against yellow stem borer and rice gundhi bug during dry season of 2011 and 2012. Imidacloprid 17.8% @ 300g/ha treatment recorded lowest percentage of DH (3.3%), WEH (3.33%), gundhi bug damage (7.16%) and highest grain yield of 5.28 t/ha in variety Jaya followed by the treatment Sulfoxaflor [email protected]/ha, 4.96 t/ha, Thiamethoxam [email protected]/ha, 4.9 t/ha and triazophus 40% @625g/ha, 4.78t/ha during 2011 and similar result was also observed in 2012. All the tested insecticides significantly reduce damage due to yellow stem borer and gundhi bug. The grain yield of treatment imidacloprid17.8% @ 300g/ha was highest (5.28 and 5.21 t/ha) significantly superior to check insecticide monocrotophus 36 % @ 1390 ml/ha (4.65 and 4.62t/ha) and at par with thiamethoxam [email protected]/ha (4.9 and 4.85 t/ha), triazophos 40% @625g/ha (4.78 and 4.8 t/ha) and new insecticide Sulfoxaflor 24% @ 375g/ha (4.96 and 4.92t/ha) during 2011 and 2012 respectively. The check insecticide was found superior to new insecticide sulfoxaflor at lower dose i.e.311 g/ha against yellow stemborer and gundhi bug damage.

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Author(s): P. C. Rath, Kaushik Chakraborty, Parthasaarathi Nandi and M. N. Moitra

Keywords

Insecticides, Stemborer, Rice, Gundhibug, Insecticides Toxicology

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