Evaluation of Flonicamid against Rice Ear Head Bug Leptocorisa acuta (Thunberg)
DOI:
https://doi.org/10.55446/IJE.2022.791Keywords:
Rice, earhead, Leptocorisa acuta, flonicamid, imidacloprid, thiamethoxam, chlorpyriphos, efficacy, yield, benefit:cost ratioAbstract
This study evaluated the efficacy of flonicamid 50%WG (50, 75 and 100 g ai ha<sup>-1</sup>) along with imidacloprid 17.8SL (25 g ai ha<sup>-1</sup>), thiamethoxam 25%WG (25 g ai ha<sup>-1</sup> ), chlorpyriphos 19%ME (180 g ai ha<sup>-1</sup>) and fipronil 5% SC (75 g ai ha<sup>-1</sup>) against the rice ear head bug Leptocorisa acuta (Thunberg) in rice. The results revealed that flonicamid @ 100 g ai/ ha was the most effective (1.0 bugs hill<sup>-1</sup>) followed by flonicamid @ 75 g (1.13 bugs hill<sup>-1</sup>). Imidacloprid (1.22 bugs hill<sup>-1</sup>) was statistically on par with that of flonicamid @ 50 g (1.23 bugs hill<sup>-1</sup>) and thiamethoxam (1.24 bugs hill<sup>-1</sup>). The yield and cost-effectiveness were maximum in the flonicamid (48.93 q ha<sup>-1</sup> @ 100 g) and imidacloprid (B: C; 2.43:1).
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