Year: 2016 | Month: December | Volume 9 | Issue 6

Efficacy of Newer Insecticides Against Sucking Insect Pests of Greengram [Vigna radiata (L.) Wilczek]


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Abstract:

A field experiment was conducted to find out the effective dose of some newer insecticides for the management of sucking insect pests of green gram. The treatments of experiment were Diafenthiuron 50 WP @ 187.5g a.i./ha, Diafenthiuron 50 WP @ 250g a.i./ha, Diafenthiuron 50 WP @ 312g a.i./ha, Spiromesifen 240 SC @ 90g a.i./ha, Spiromesifen 240 SC @ 120g a.i./ha, Spiromesifen 240 SC @ 150g a.i./ha, Sseed treatment with Thiamethoxam 35 FS+ Thiamethoxam 25 WG @ 3g/kg seed+25g a.i./ha, Thiamethoxam 25 WG (Std. Check) @ 25g a.i./ha and Triazophos 40 EC (Std. Check) @ 500g a.i./ha. The results of experiment revealed that Diafenthiuron 50 WP @ 312g a.i./ha was most promising treatment in reducing population of whitefly (Bemisia tabaci), jassid (Empoasca kerri) and flower thrips (Caliothrips indicus) after both sprays followed by Spiromesifen 240 SC @ 150g a.i./ha as compared to standard checks Thiamethoxam 25 WG @ 25g a.i./ha and Triazophos 40 EC @ 500g a.i./ha.



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