author(s)
Ishtiaq Ahmad, Mansoor-ul-Hasan, Muhammad Rashid Arshad, Muhammad Fahad Khan, Hafeez-ur-Rehman, Syed Muhammad Ali Zahid and Muhammad Arshad

abstract
Rhyzopertha dominica (F.) is a very important and destructive pest of stored grains and cause serious ongoing problems in grain stocking. The main objective of this study was to evaluate the efficacy of four different plant extracts against R. dominica. The results of present study showed that among all medicinal plant extracts, maximum mortality was observed (67.81%) in case of P. nigrum after 120 hours of application. Similarly, the repellency percentage was also observed greater in treatment where P. nigrum applied. Percent weight loss and progeny development was also zero when P. nigrum was applied at 20% concentration. Overall, P. nigrum was observed effective against R. dominica and could be integrated into stored insects management system.