Assessment of Selected Insecticides against Fall Armyworm [Spodoptera frugiperda (J.E. Smith); Lepidoptera, Noctuidae] on Maize Crop in Lahore
Abstract
This study was focused on investigating the efficacies of insecticides that are being used locally to control fall armyworm (FAW). The experiment was laid out by using randomized complete block design having seven treatments viz. T1 = Spinosad 16% + Emamectin Benzoate 4% SC @ 120 ml per acre, T2 = Emamectin Benzoate 5% WDG @ 75 g per acre, T3 = Chlorantraniliprole 20% SC @ 50 ml per acre, T4 = Fipronil + Emamectin Benzoate 0.35% G @ 8 kg per acre, T5 = Fipronil 5% SC @ 480 ml per acre, T6 = Emamectin Benzoate 1.9% EC @ 200 ml per acre, and T7 = Control. Each treatment was replicated four times. Maize crop was sown at the research area of Faculty of Agricultural Sciences, Punjab University, Lahore. All the recommended agronomic practices were followed. Crop was treated with all the treatments and data were recorded after 1, 3, 7, 14 and 21 days of treatment. Larvae per plant were counted by selecting random plants. Fipronil + Emamectin Benzoate 0.35% G provided the best control compared to other insecticides, as the lowest population of 2.00 larvae per plant were observed on plants treated with this insecticide after fourteen days. Chlorantraniliprole 20% SC and Emamectin Benzoate 5% WDG followed by Fipronil + Emamectin Benzoate 0.35% G managed the larval population much better as compared to rest of the insecticides with lowest population values of 3.25 and 3.25 larvae per plant, respectively. On the other hand, application of Spinosad 16% + Emamectin Benzoate 4% SC, Emamectin Benzoate 1.9% EC, and Fipronil 5% SC showed the lowest count of 5.00, 6.75, and 8.75 larvae per plant, respectively. This study suggests the use of Fipronil + Emamectin Benzoate 0.35% G and Chlorantraniliprole 20% SC against FAW larvae for their effective control under agro-ecological conditions of Lahore, Pakistan.
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DOI (PDF): https://doi.org/10.33804/pp.007.02.4706
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