Abstract
Weevils were diet on various legume seeds had significant effects on their biological aspect processes. High mean of egg numbers was 69.6 eggs / female which lay on cowpea seeds, while in chickpeas were 40.2 eggs/female. Period 5.2 days, while the kidney bean gave the shortest period 4.2 days. The highest percentage of egg hatching was 90 % for the kidney bean seeds, while the lowest percentage was 80% in chickpeas. Lentil seeds produced the longest larval-pupal duration being 29.8 days, the cowpea seeds had the shortest period 23.3 days. Survival of larvae hatched from eggs laid on kidney beans stay died after a short time of hatching. The highest percentage of adults emerged was 81.6 % in case of feeding on cowpea seeds, while the lowest was 41.3% when the larvae grown on lentil seeds. Development of larvae on various kinds of seeds had significant effect on the adult longevity and the highest mean for female and male adults were 9.8 & 9.0 days respectively, for the larvae reared on cowpea seeds. While the duration is reduced to 5.1 days for females and to 4.2 days for males that produced from larvae fed on lentil seeds. The longevity of the females was longer than that of males in all cases. Significant differences in weight loss of applied pulses as continuous exposure for 4 months were concluded, which take 57.5, 48.3, 33.0, 8.8 & zero % for cowpea, green gram, chickpea, lentil & kidney beans respectively. The highly infested seeds of cowpea gave the lowest percentage of germination with an average of 8.8 % in comparison with that of non-infested 72%. The results indicated that the slices of garlic and four plant extracts were showed a high significant effects on the adult mortality for one day after treatment as follows : garlic slices > garlic extract > menthum extract>basil extract > celery extract >.
