Tropentag, September 10 - 12, 2025, Bonn "Reconciling land system changes with planetary health"

Biorational management of major insect pests of moth bean (Vigna aconitifolia) in western Rajasthan, India

Agriculture University, Jodhpur, Dept. of Entomology, India

Abstract

The biorational pest management strategies is a novel and sustainable pest management approach in an environmentally and ecologically safer way. By this approach we can manage the pest with use of biopesticides because synthetic pesticides are not safer for long term as they are creating major problem like environmental pollution, residual toxicity, degrade the biodiversity and loss of beneficial insect species. The moth bean is an arid legume crop widely grown in arid and semi-arid regions of western Rajasthan, India. The moth bean crop severely affected by different sucking insect pests throughout the crop season. Keeping in view of the resurgent problems due to synthetic pesticides an experiment was conducted to evaluate different biopesticides for the biorational management of major insect pests of moth bean at Agricultural Research Station, Mandor, Jodhpur in rainy season during 2022-2024 to observe and manage the major insect pests infesting moth bean. The experiment was laid out in randomised block design replicated thrice.
The results on the basis of pooled data of three years (2022-24) revealed that the application of Beauveria bassiana 1.15WP (wettable powder) 5g/litre recorded minimum population of leafhopper 3.81/plant at 7 days after treatment. Similarly, whitefly population was also minimum with this treatment (5.26 &5.98 white flies/plant after first and second spray). The treatment Lecanicillium lecani 1.15 WP (wettable powder) @5 g/litre was found next effective in reduction of pest population (leafhopper 4.37 & 4.51 /plant and whitefly 7.59 & 8.67 /plant after first and second spray respectively). Further, grain yield and net return was recorded highest in the treatment of Beauveria bassiana 1.15WP @ 5g/litre (686 kg ha^-1 and INR 11023) and it was on par with Lecanicillium lecani 1.15 WP @5 g/litre in which the grain yield and net profit was 652 kg ha^-1 and INR 9313/ha respectively.

Keywords: Biopesticides, biorational, moth bean, pest management, yield

Contact Address: NARAYAN LAL DANGI, Agriculture University, Jodhpur, Dept. of Entomology, Mandor, 342304 Jodhpur, India, e-mail: nlento0249gmail.com