Efficacy of Diafenthiuron against Empoasca fabae (Harris) in Potato
DOI:
https://doi.org/10.55446/IJE.2022.687Keywords:
Solanum tuberosum, Empoasca fabae, diafenthiuron 50WP, castor oil, imidacloprid, thiamethoxam, foliar sprays, tuber yield, cost benefit ratioAbstract
This study evaluated the efficacy of diafenthiuron against potato leafhopper Empoasca fabae Harris during rabi, 2018-19 and 2019-20. Seed treatment with imidacloprid 17.8SL @0.4ml/ l along with foliar spray @150ml/ ha, thiamethoxam 25WG @100g/ ha, diafenthiuron 50WP @700g/ ha, castor oil @250ml/ ha, diafenthiuron 50WP @700g/ ha mixed with castor oil @250ml/ ha and untreated control were the treatments compared. The results revealed that the treatments consisting of first foliar spray of diafenthiuron 50WP @700g/ ha mixed with castor oil @250ml/ ha, and second spray of diafenthiuron 50WP @700g/ ha at 30 and 40 days after planting was the most effective. This treatment also gave maximum tuber yield (10.16± 0.11 t/ ha) which is a 43% increase over untreated control with a benefit: cost ratio of 1.62.
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