National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Leptocorisa acuta Thunberg (Hemiptera: Coreidae) is an important and common pest of rice which is also as called ear head bug. The present experiment was carried out to determine the relative efficacy of newer pre-mixture insecticides and also combination with other insecticides, fungicides and urea were carried out at Agricultural College and Research Institute, Madurai, TNAU during 2012 and 2013. In the first experiment, among the treatments, minimum earhead bug populations (1.6 /hill) was recorded in the treatment comprising of the new combination product of Sulfoxaflor 3.75 + chlorpyriphos 37.5 SC @ 619 g a.i/haand it was on par with Sulfoxaflor 3.75 + chlorpyriphos 37.5 SC @ 516 g a.i./ha followed by sulfoxaflor 24 SC @ 75 g a.i/ha. In the second experiment, Sulfoxaflor 3.75 + chlorpyriphos 37.5 SE 619 g + thiamethoxam 25 WG 25 g followed sulfoxaflor 3.75 + chlorpyriphos 37.5 SE 619 g + monocrotophos 36 WSL 360 ga.i/ha, and sulfoxaflor 3.75 + chlorpyriphos 37.5 619 g a.i/ha+ urea 2% tank mix were found effective in reducing the ear head bug population. Sulfoxaflor 3.75 + chlorpyriphos 37.5 SE mixtures with other insecticides, fungicides and urea did not show any phytoxicity on rice plants.
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