The effectiveness of plant extracts of Datura innoxia L. fruits on some biological aspects of Khapra beetle Trogoderma granarium (Coleoptera: Dermestidae)

Abstract

Water and alcoholic plant extracts of Datura innoxia L. fruits were tested in respect of some biological aspects of Khapra beetle Trogoderma granarium as(mortality, productivity and repellency ).The results revealed that, the cold water extract was more effective than the boiled water extract in rates mortality of five larval instars(50.3 ,46.9 , 41.2 , 39.2 , 30.9 %) at 100% concentration. Also , in use the alcoholic extracts , the rates mortality of five larval instars were(90.0 , 70.1, 61.2, 41.2 , 35.2 %) respectively at 30 mg/ml. female productivity decreased to 46.3 eggfemale at 20 mg/ml when previous treated with alcoholic extracts compared with 67.3 eggfemale in control treatment. Percentage of repellent(PR) of alcoholic extracts and water extracts to adults of T.granarium were 87.7 , 60 and 60 % respectively..