Author(s):

Satish Tirkey and Ashwani Kumar

Abstract: A field trail was conducted at the Central field, Department of entomology SHUATS, Allahabad during kharif July to November 2016 investigation entitled “Efficacy of selected insecticides against chilli thrips {Scirtothrips dorsalis (Hood)} on chilli (Capsicum annuum L.) in Allahabad” seven treatments were evaluated against Scirtothrips dorsalis i.e., T₁ Imidacloprid 17.8 SL @ 0.2ml/lit, T₂ Cypermethrin 25 EC @ 1.8ml/lit, T₃ Spinosad 45 SC @ 0.3ml/lit, T₄ Thiomethoxam 25 WP @ 0.2ml/l, T₅ Fipronil 5 SC @ 2ml/lit, T₆ Abamactin 1.8 EC @ 1ml/lit, T₇ Profenophos 50 EC @ 2ml/lit were evaluated against chilli thrips Scirtothrips dorsalis. Result revealed that among the different treatments T₄ Thiomethoxam (84.14%) proved to be the most effective treatments followed by T₃ Spinosad (80.77%), T₅ Fipronil (76.71%), T₆ Abamactin (70.97), and T₁ Imidacloprid (65.12), whereas T₇ Profenophos (60.47%), T₂ Cypermethrin 43.97 was found to be least effective against this pest. The plots treated with T₄ Thiomethoxam 25 WP show highest (198.64 q/ha), followed by T₃ Spinosad 45 SC (194.23 q/ha), T₅ Fipronil 5 SC (190.56 q/ha), T₆ Abamactin 1.8 EC (184.32 q/ha), T₁ Imidacloprid 17.8 SL (170.98 q/ha), T₇ Profenophos 50 EC (156.85 q/ha) and T₂ Cypermethrin 25 EC (145.54) as compared to control T_o (90.34 q/ha). The highest yield was noticed in Thiomethoxam 25 WP (198.64 q/ha) followed by Spinosad 45 SC (194.23 q/ha).

Pages: 322-324  |  2176 Views  629 Downloads

Download (258KB)