تأثير بعض المستخلصات النباتية المائية و تراكيزھا و طريقة معاملة من الباقلاء الفول (Aphis fabae Scopoli)‎ في الكفاءة التناسلية للدعسوقة ذات السبع نقاط (Coccinella septempunctata L.)‎

Abstract EN

The results of feeding the lady beetle Coccinella septempunctata L.

on black bean aphid Aphis fabae Scolopi treated directly and indirectly by three concentration (2, 4 and 8%) of aqueous seed extracts of celery (Apium graveolens L.), grassnut (Cyperus rotundus L.) and lettuce (Lactuca sativa L.) showed that the botanical extracts exhibited clear effects on the fertility of the ladybeetles.

The direct treatment of the A.

fabae by lettuce seed extracts at 8% conc.

showed a significant effect on the mean percentage of fertility efficiency, percentage of increase or decrease of fertility efficiency and the percentage of potential fertility which reached 102.2, 32.7, and 132.7%, respectively.