Vol. 9, Special Issue 12, Part P (2025)

A field experiment was conducted at Anand Agricultural University, Anand during Rabi, 2024-25 to assess the impact of various adjuvants on the efficacy of insecticides against aphid, Lipaphis pseudobrassicae infesting cauliflower. Among the fifteen treatment combinations of insecticides and adjuvants, cyantraniliprole 10.26% OD + sticker 0.1% (I₃A₂) and cyantraniliprole 10.26% OD + guar gum 0.1% (I₃A₅) were found most effective in reducing of aphid incidence in cauliflower. The treatment combinations of cyantraniliprole 10.26% OD + silicone spreader 0.1% (I₃A₃), tolfenpyrad 15 EC + sticker 0.1% (I₁A₂) and tolfenpyrad 15 EC + silicone spreader 0.1% (I₁A₃) emerged out as next best effective combinations against aphid, these were mediocre in their effectiveness. Cyantraniliprole 10.26 OD and tolfenpyrad 15 EC exhibited increased effectiveness when combined with adjuvants compared to sprayed alone, whereas flonicamid 50 WG performed better without adjuvants or with sticker 0.1%. Moreover, the higher curd yield was harvested from the plots treated with cyantraniliprole 10.26 OD + guar gum 0.1% (170.01 q/ha) and cyantraniliprole 10.26 OD + silicone spreader 0.1% (161.52 q/ha).