Influence of ozone gas on the khapra beetle, Trogoderma granarium (Coleoptera: Dermestidae) in stored wheat

Abstract Khapra beetle, Trogoderma granarium Everts, 1898 (Coleoptera: Dermestidae) is one of the most notorious pests stored grains. This study was aimed to evaluate efficacy ozone against 2nd and 5th instars adults T. in wheat kernels under laboratory conditions. Four concentrations 300, 600, 900, 1200 parts per million by volume (ppmv) were used. The results revealed that LC 50 values 249.76 ppmv for adult, 446.75 instar, 275.30 instar after 2 h exposure ozone. No emerged when concentration ppmv, while emergence high controls (91.20%) a 1-h period. highest resulted strong grain protection adult instars, with 0.63%, 0.73%, 1.16% loss weight, respectively. Chemical analysis treated at showed no significant differences ( p > 0.05) fat, moisture, ash, carbohydrate, fiber, protein content ozone-treated compared untreated grain. Thus, can be effectively used control provides sufficient wheat.