The comparative efficacy of different pesticides against aphid (Brevicoyne brassica + Lipaphis erysimi) on canola crop under arid condition

Abstract

Experiments were carried out to evaluate the efficacy of different insecticides for the control of aphid in canola crop at Adaptive Research Farm Karor, Distt. Layyah, Punjab. Pakistan and farmer’s field i.e. Chak No. 116/TDA Tehsil, Karor, Distt. Layyah Punjab, Pakistan under irrigated condition during Rabi crop season 2022-23. The trials were layout in Randomized Complete Block Design (RCBD) with three replications with plot size of 05 m x 0.9 m along with row spacing 45 cm. Six different pesticides treatments including T1. Legend (Metrin) @ 740 ml ha-1, T2. Confidor (Imidacloprid) 25 WP @ 500 g ha-1, T3. Plenum (Pymetrozine) @ 200 ml ha-1, T4. Advantage (Carbosulfon) 20 EC @ 1250 ml ha-1, T5. Talstar (Bifenthrin) @ 370 ml ha-1 and T6. Controls (check plot) were applied at pod formation stage. All insecticides gave effective control of aphid up to nine days after application in both locations (Table 1&11), but Advantage (Carbosulfan) 20 EC @ 1250 ml ha-1 proved to be the best because of its consistent effectiveness throughout the experiments. It is thus recommended that advantage (Carbosulfan) 20 EC may be applied @ 1250 ml ha-1 for offering control of aphid at pod formation stage.