Life history parameters of Myzus persicae (Sulzer) (Homoptera : Aphididae) reared on qing-geng-cai at four constant temperatures. [Japanese]

摘要

Life history parameters of apterous viviparous Myzus persicae reared on qing-geng-cai were measured at constant temperatures of 15, 20, 25 and 30degreesC under a 16L-8D photoperiod. Mean developmental times from 1st instar to adult emergence decreased as the temperature increased. Survival rates were over 90% at all temperatures and showed no significant difference between each temperature. The lower developmental threshold and total effective temperature were calculated as 5.6degreesC and 113.1 degree-days. The adult fertility and longevity reached a maximum at 20degreesC, but the intrinsic rate of population increase was highest as 0.420 at 25degreesC.