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Research Article Open access CC BY 4.0

Bio Efficacy and Economics of Systemic Insecticides against Whitefly in Potato

J. K. Patel, R. N. Patel, D. M. Zapadiya, S. J. Vaghela, J. Khaniya

International Journal of Environment and Climate Change · pp. 406–410 · Published 8 May 2023

10.9734/ijecc/2023/v13i71892

Abstract

A field experiment was conducted at Potato Research Station, S. D. Agricultural University, Deesa during 2018-19 and 2019-20 for evaluation of efficacy of insecticides against whitefly in potato. The seven different treatments viz. T1: Control, T2: Seed treatment with imidacloprid (200 SL) @ 0.04% followed by foliar sprays of imidacloprid @60 gm a.i./ha at 85% emergence + second spray with thiamethoxam 25WG @100g a.i./ha, T3: Foliar spray of diafenthiuron 50WP 350 g a.i. at 85% emergence, T4: Foliar spray of diafenthiuron 50WP 350 g a.i. at 85% emergence followed by second spray of diafenthiuron  after 10 days, T5: Foliar spray of castor oil @0.05% at 85% emergence, T6: Foliar spray of diafenthiuron 50WP 350 g a.i. at 85% emergence  mixed with castor oil @0.05%, T7: Foliar spray of diafenthiuron 50WP 350 g a.i. at 85% emergence  mixed with castor oil @0.05%  by second spray with  diafenthiuron  after 10 days.  Based on pooled data of two years, the significantly highest per cent reduction (i.e. 68.57 %) after 2nd spray was recorded in T7 i.e. foliar spray of diafenthiuron 50WP 350 g a.i. at 85% emergence mixed with castor oil @0.05% by second spray with diafenthiuron after 10 days which was at par with T4 (Foliar spray of diafenthiuron 50WP 350 g a.i. at 85% emergence followed by second spray of diafenthiuron after 10 days). The tuber highest yield and benefit cost ratio were also recorded with T7. 

Potato whitefly management difenthiuron sucking pest

References (10)

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Monitoring and management of Whitefly, Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae) using novel insecticides in potato crop

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