دراسة التفضيل الغذائي لحشرة خنفساء اليقطين الحمراء لبعض أنواع العائلة القرعية Raphidopalpa foveicollis (Lucas)‎ (Chrysomolidae : Coleoptera)‎

الملخص EN

The study studied in Shekh baba region at north Diyala on seven species of cucurbit family plants throughout the spring and fall seasons of 2013, the field results which are obtained showed that red pumpkin beetle Raphidopalpa foveicollis (Lucas) attached 88 and 93.5 % seedlings of melon and snakemelon, the loss plants 9 and 11% respectively.

the sensitively of all species of cucurbit plants to the red pumpkin beetle by a varying degrees, melon and snakemelon was the more in numbers of insects, seedling damage and death plants, melon and snakemelon was the most, Preference to the insect, in melon 6.68 , 88 and 9% respectively, in snakemelon 6.02 and 93.5 , and 11% respectively ,bottle gourd, pumpkin and watermelon the lowest numbers for those characters 0.19 , 0 , 0% in bottle gourd respectively, 0.44 , 0 , 0% pumpkin and 0.11 , 2.5 , 0% for water- melon respectively , for that bottle gourd , pumpkin and watermelon were the least preferred, the pest has no preference for squash and cucumber.