EFFICACY OF PISTACHIO PSYLLA NYMPHS Agonoscena targionii LICHT.( HOMPTERA : PSYLLIDAE ) ON THE DEVELOPMENT OF Chrysoperla carnea (STEPH.) ( NEUROPTERA : CHRYSOPIDAE) UNDER LABORATORY CONDITIONS

This study was carried out under laboratory conditions at 25±2°c and 65±5% r. h. chrysoperla carnea (steph.) larvae in the experiments was fed on pistachio psylla nymphs (agonoscena pistaciae licht.) and mediterranean moth eggs (ephestia kuehniella zeller; lepi.: pyralidae). results showed that the incubation period was equal in all treatments, without significant differences. significant differences were found among tow treatments in larvae development period. it was 13.69±0.49 and 10.89±0.18 days when fed on pistachio psylla nymphs and e. kuehniella eggs respectively. the results indicated significant differences in the predator`s pupae development period. it was 7.90±0.23 and 8.28±0.11 days, respectively. total development period from egg to adult showed significant differences among tow treatments, it lasted 26.10±0.43 and 24.17±0.15 days, respectively. fecundity of c. carnea females was differ dependence on prey type. it was 151.97±12.24 eggs, when the predator larvae were fed on pistachio psylla nymphs, while it was higher (194.40±12.43 eggs) with a significant difference when the larvae were fed on e. kuehniella eggs.