author(s)
Abdel-Raheem MA and Abdel-Rahman IE

abstract
The results obtained that, the % reduction of Myzus persicae population by releasing Coccinella undecimpunctata and Chrysoperla carnea (Stephens) on tomato plants in green house in Faculty of Agriculture, Al-Azhar University. Predators releasing caused % reduction on M. persicae population compared with control treatments. The suppression of M. persicae population by three treatments of predators released (C. undecimpunctata and C. carnea), C. carnea and C. undecimpunctata on tomato plants were (85, 83, 80 and 84, 82, 79%) on 7^th days after releasing with three treated for the first experiment and second experiment, respectively. After two weeks, from predators released the % reduction reached to (90.5, 89 and 85%) and (90, 89% and 83%) for three treated during the two experiments respectively.