Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Studies on the effect of O2 and CO2 gases at different concentrations on the development of pulse beetle Callasobruchus analis (Fabricius) (Coleoptera: Bruchidae) in chickpea.

Abstract

Studies on the management of pulse bruchid, Callasobruchus analis (Fabricius) (Coleoptera: Bruchidae) under modified atmospheric condition was undertaken at the College of Agriculture, Raichur, Karnataka during 2010-11. Change in gas concentration was measured and there was gradual depletion of O2 and increase of CO2. This was mainly due to respiration of insects and grains during storage. There was no change in O2 and CO2 gas concentration where there was no O2 hence there was no scope for insects as well as grains for respiration. The CO2 concentrations of 15 and 20 per cent exposed for 45 days gave cent per cent mortality of insects; no adults survived at that concentration. Further, there was no adult emergence thereby egg laying and mass loss (%) were also nil.