Vol. 7, Issue 5 (2019)
Studies on bio-rational insecticides against tobacco caterpillar, Spodoptera litura on groundnut crop in Chhattisgarh
Author(s): Tarun Kumar Nayak, Sonali Deole and SS Shaw
Abstract: The field experiment were conducted at Research Cum Instructional Farm at IGKV, Raipur (C.G.) during kharif 2018, for the purpose to evaluate relative efficacy of bio-rational insecticides against tobacco caterpillar, Spodoptera litura infesting groundnut. Based on two spray, it was concluded that the Emmamectin benzoate 5 SG (0.0025%, 0.5 gm/lit.) and Spinosad 45 SC (0.014%, 0.31 ml/lit.) were found superior from rest of the insecticides. The experimental results indicated that the Emmamectin benzoate 5 SG (0.0025%, 0.5 gm/lit.) against the tobacco caterpillar, S. litura was found to be most effective chemical treatment because it recorded the highest per cent mortality of the larvae (65.52%). The second best treatment was Spinosad 45 SC (0.014%, 0.31 ml/lit.) with 61.91% mortality followed by Pymetrozine 50 WDG (58.35%), Buprofezin 25 SC (57.45%), Pyriproxyfen 10 EC (55.31%), Azadirachtin 1500 ppm (36.32%), Metarhizium anisopliae (34.90%) and Beaveria bassiana (28.16%). The Beaveria bassiana (2.04 x 106, 10 ml/lit.) was seen the least effective treatment as compared to other as, it was observed least per cent mortality of the larvae.
Pages: 1334-1337 | 220 Views 34 Downloads
download (6537KB)
How to cite this article:
Tarun Kumar Nayak, Sonali Deole, SS Shaw. Studies on bio-rational insecticides against tobacco caterpillar, Spodoptera litura on groundnut crop in Chhattisgarh. Int J Chem Stud 2019;7(5):1334-1337.
