Vol. 12, Issue 11 (2023)

Author(s):
Sushila Nadagouda, Sandeepkumar CH, Sreenivas AG, Sharanagouda Hiregoudar and Sham Supreeth G

Abstract:
The impact of solid CO₂ on the developmental biology of pulse beetle in red gram was carried out at the Centre for Agro-climatic Studies, College of Agriculture, Raichur, Karnataka. The results are quiet promising and clearly affected the oviposition at 90 and 70 percent CO₂ concentrations and persisted upto 30 days after treatment whereas, untreated check reported 51.80 eggs per 10 seeds. However, 50 percent CO₂ treatment was not successful in inflicting complete mortality. Similarly, lowest damage of 13.93 percent was noticed in 90 percent CO₂ treatment, which was on par with 70 and 50 percent CO₂ treatments with no seed weight loss in 90 and 70 percent CO₂ treatments. Based on these parameters, both 90 and 70 percent CO₂ concentrations were found effective in hindering the development of the pulse beetle without affecting the quality of seeds and its germination.