Vol. 8, Special Issue 5 (2020)
Safe and cost effective management of the fall armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae) using green insecticide baits
Author(s): Dileep Kumar NT, Murali Mohan K, Prabhu C Ganiger and Mahesh HM
Abstract: The fall armyworm, Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae), is a new invasive species in India. This pest is occurring in serious proportions, causing significant damage to the maize crop in several states across the country. Insecticides are applied several times for managing the fall armyworm on maize, which significantly increases the cost of plant protection. In this study green chemistry molecules were directly applied to the leaf whorls in the form of poison baits, in the place of foliar sprays. Main objective of this study was to reduce the cost of plant protection by changing the method of chemical delivery and to make the produce safe for consumption by using green chemistry (slightly toxic) insecticides. Poison baits prepared using spinetoram 5 ml/kg, 2.5 ml/kg and novaluron 5 ml/kg recorded maximum larval mortality and minimized the leaf damage by fall armyworm. These insecticides contributed for 97.20, 93.15 and 92.46 per cent reduction in larval population over untreated control, respectively at 14 days after second application. Comparative efficacy of insecticide when applied as baits vis-a-vis foliar sprays suggested that the difference was non-significant in spinetoram, novaluron and chlorantraniliprole. There was substantial reduction in the cost of plant protection ranging from 22 to 44 per cent in bait application over foliar spray involving same insecticide. Overall, this study opens up new opportunity for reducing the cost of plant protection while managing fall armyworm on maze.
Pages: 106-110 | 688 Views 85 Downloads
How to cite this article:
Dileep Kumar NT, Murali Mohan K, Prabhu C Ganiger and Mahesh HM. Safe and cost effective management of the fall armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae) using green insecticide baits. International Journal of Chemical Studies. 2020; 8(5): 106-110. DOI: 10.22271/chemi.2020.v8.i5b.10454