Effect of Host Plant and Temperature on Biology and Population Growth of Pterochloroides persicae Cholodv (Hemiptera, Lachninae)

摘要

This work aimed to study the population behaviour and distribution of brown peach aphid (Pterochloroides persicae) on different host trees. Five host plants were identified (peach, almond, plum, apricot and apple) and two behaviours were observed in which aphid could be maintained all-year round on peach in irrigated orchards and a sub-humid climate on four Prunus genus in dry fields and an arid climate. Population dynamics showed that aphids first appeared on roots and then moved up to cover the collar and the trunks where populations behaved differently. The effects of host and temperature on biotic potential were studied under controlled field conditions. Adults were reared individually at different temperatures (15,20 and 25 deg C) on peach, almond, plum and apricot tree branches. 20 deg C is the best temperature for the reproductive potential of P. persicae and peach was the best host for P. persicae in terms of mass rearing.