Pesticide Research Journal

Efficacy of different spray modules viz. Module I - endosulfan (0.07%) - carbaryl (0.15%) - endosulfan (0.07%), Module II - nimbicidine (0.2%) - nimbicidine (0.2%) - nimbicidine (0.2%), Module III - nimbicidine (0.2%) - endosulfan (0.07%) - nimbicidine (0.2%), Module IV- chlorpyrifos @ 5 mL⁻¹ as soil drench - nimbicidine (0.2%) - endosulfan (0.07%) along with control were tested against mango hopper (Amritodus atkinson Leth., Idioscopus clypealis Leth. and I. niveosparsus Leth.) on mango cv. Himsagar under field condition during 2001–02 and 2002–03. The insecticides were applied at fortnightly interval starting from the panicle emergence. Considering the overall efficacy, it was observed that all the insecticidal modules were significantly superior in controlling the hopper population over untreated control. Module I was the most effective in suppressing the hopper infestation during all the three sprays conducted, followed by module III and module IV, respectively. Module I recorded significantty higher number of fruits at marble stage (172.9 per 100 panicles) and also significantly higher yield (52.83 kg per plant). Module III and Module IV was statistically at par with Module I.