Y. M. Ramesha M.Y. Ajay Kumar Manjunath Bhanuvally Ashok Kumar Gaddi


An experiment was conducted during Kharif 2012 and 2013 at Agricultural Research Station, Dhadesu-gur, University of Agricultural Sciences, Raichur, Karnataka, India, to evaluate the phytotoxicity and bio efficacy of pyrazosulfuron ethyl 10 % WP (wettable Powder) @ 5, 10, 15 and 20 g a.i./ha against the weeds in transplanted rice. Sprays of Saathi (Market Sample) @ 15 g a.i./ha (gram active ingredient/hectare), Pretilachlor 50% EC @ 500 ml a. i/ha, hand weeding at 15 and 40 days after planting (weed free check) and a weedy check (untreated check) were also maintained. The dominant weeds were Echinochloacolona, Panicum repens, Cynodondoctylon, Lud-wigiaparviflora, Leptochloachinensis and Cyperus sp. Application of pyrazosulfuron ethyl 10 % WP @ 20 g a.i./ha was recorded significantly higher grain yield (6266 kg/ha) by controlling the associated weeds in transplanted rice without any phytotoxic effect.


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Bio-efficacy, Dry weight, Grain yield, Phytotoxicity, Weeds

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Ramesha, Y. M., Kumar, M. A., Bhanuvally, M., & Gaddi, A. K. (2017). Bio-efficacy of pyrazosulfuron ethyl 10% wp against weeds in transplanted rice. Journal of Applied and Natural Science, 9(3), 1844–1847. https://doi.org/10.31018/jans.v9i3.1450
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