Evaluation of Insecticide Rotations against Rice Brown Planthopper Nilaparvata lugens (Stal)
DOI:
https://doi.org/10.55446/IJE.2022.163Keywords:
Nilaparvata lugens, efficacy, acephate, buprofezin, fipronil, dinotefuran, pymetrozine, flonicamid, rotations, grain yield, cost benefit ratioAbstract
Field experiments were carried out to evaluate the efficacy of certain insecticide rotations against rice brown planthopper (BPH) Nilaparvata lugens (Stal) at the Regional Agricultural Research Station, Maruteru, Andhra Pradesh during kharif 2017 and rabi 2017-18. The results revealed that fipronil (1000 ml/ha) followed by pymetrozine (300 g/ha), buprofezin (800 ml/ha) followed by pymetrozine (300 g/ha) and acephate (750 g/ha) followed by pymetrozine (300 g/ha) were the most effective insecticide rotations in a crop season. These also gave higher grain yields. The insecticide rotations, acephate (750 g/ha) followed by pymetrozine (300 g/ha) and fipronil (1000 ml/ha) followed by pymetrozine (300 g/ha) gave the maximum cost benefit ratio of 1: 6.01 and 1: 6.03, respectively.
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