تأثير بعض مستخلصات بذور الحرمل Peganum harmala في بعض جوانب الأداء الحياتي لخنفساء الحبوب الشعرية (الخابرا)‎Trogoderma granarium Everts (Coleoptera :Dermistidae)‎

الملخص EN

Studies on the use of chloroform and hexan extracts of harmala seeds Pegaum harmala against the khapra beetle Trogoderma granarium in wheat grains revealed that there was significant toxic effect of all concentrations on immature stages and adults .

Chloroform extract was more effective than hexan extract in all treatments .The rates of cumulative mortality at 10mg/ml of Chloroform extract reach 100% and at 25mg/ml of hexan extract reach 100% comparing with 26.5% at control treatments .Two extracts prevented oviposition completely at 10 mg/ml and the productivity of female was negative decreased relation with the increase of concentration , the developmental period was positive increased relation with the increase of concentration of extracts.

The study results showed there was capable of use harmala seed extracts without effect on germination of grains ,thus could be promising an environmentally safe and clear mode for control of the khapra beetle Trogoderma granarium