Effect of fungus Beauveria bassiana on three species of warehouse insects affiliated to the order Coleoptera

The efficacy of the fungus Beauveria bassiana were studied using five concentrations 106 , 5x106, 107, 5x10 7and 108 spore/ml. of the fungus Beauveria bassiana against three species of stored product insects , Southern cowpea weevil Callosobruchus maculatus, Khapra beetle Trogoderma granarium, and rust red flour beetle Tibolium castaneum. The mortality rate was recorded after exposing these insects to food treated with the aforementioned fungus, during four different exposure periods, which are 2 days, 4 days, 6 days, and 8 days, it was noticed that the killing rate was increasing as the concentration and duration of exposure increased, as the highest mortality was recorded, which was 19.67 insects in the southern cowpea weevil Callosobruchus maculatus, due to the concentration of the fungus 108, and after 8 days had passed since the date of the treatment, the highest mortality rate was 10.0 in the Khapra beetle, Trogoderma granarium for the fungus concentration 108. At the exposure period 8 days, the highest rate of mortality was 10.00 in the rust flour beetle, Tribolium castaneum of the fungus concentration 108 at the exposure period 8 days.

Anahtar Kelimeler: Beauveria bassiana, Coleoptera Callosobruchus maculatus

The efficacy of the fungus Beauveria bassiana were studied using five concentrations 106 , 5x106, 107, 5x10 7and 108 spore/ml. of the fungus Beauveria bassiana against three species of stored product insects , Southern cowpea weevil Callosobruchus maculatus, Khapra beetle Trogoderma granarium, and rust red flour beetle Tibolium castaneum. The mortality rate was recorded after exposing these insects to food treated with the aforementioned fungus, during four different exposure periods, which are 2 days, 4 days, 6 days, and 8 days, it was noticed that the killing rate was increasing as the concentration and duration of exposure increased, as the highest mortality was recorded, which was 19.67 insects in the southern cowpea weevil Callosobruchus maculatus, due to the concentration of the fungus 108, and after 8 days had passed since the date of the treatment, the highest mortality rate was 10.0 in the Khapra beetle, Trogoderma granarium for the fungus concentration 108. At the exposure period 8 days, the highest rate of mortality was 10.00 in the rust flour beetle, Tribolium castaneum of the fungus concentration 108 at the exposure period 8 days.

Keywords: Beauveria bassiana, Coleoptera Callosobruchus maculatus

Sayfa Aralığı: 141-148

Qader, F., Mohammed, B. & Ameen, H. (2022). Effect of fungus Beauveria bassiana on three species of warehouse insects affiliated to the order Coleoptera. Journal of Current Research on Engineering, Science and Technology, 8 (2), 141-148.