EFFICACY OF NEWER CHEMICALS AGAINST MUSTARD APHID

ABSTRACT

Acephate 75 SP @ 350 g a.i./ha was most effective to pest control as this resulted in more reduction in population of mustard aphid. Higher seed yield was obtained from Fipronil 5 SC @ 50 g a.i./ha (15.56 q/ha) and higher return based on C:B ratio (1:6.8) with Thiamethoxam 25 WG @ 25 g a.i./ha. However, imidacloprid 17.8 SL @ 20 g a.i./ha and clothianidine 50 WDP @ 15 g a.i./ha were moderately effective.

Keywords: Efficacy, aphid, chemical, Brassica crop

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