2003/04/01 by Hsin Chi, Hsin Chı, Ta-Chi Yang · 252 citations
Agricultural and Biological Sciences · #Aphid #Aphididae #Biology #Botany #Coccinellidae #Demography #Ecology #Fecundity #Homoptera #Insect Pest Control Strategies #Insect and Pesticide Research #Insect-Plant Interactions and Control #Japonica #Life history #Myzus persicae #PEST analysis #Population #Population dynamics #Predation #Predator #Sex ratio #Zoology
paper · pdf · doi:10.1603/0046-225x-32.2.327
published in Environmental Entomology 32(2), 327-333 (Oxford University Press)
openalex publication_date 2003/04/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
The life history data of the predator Propylaea japonica Thunberg at 25°C fed on Myzus persicae (Sulzer) were collected in the laboratory. To take both sexes and the variable developmental rate among individuals into consideration, the raw data were analyzed based on the age-stage, two-sex life table. The intrinsic rate of increase for P. japonica is 0.1133 d−1. The net reproductive rate is 67.6 offspring and the mean generation time is 37.7 days. To incorporate the age-stage variability of the predation rate with the two-sex life table, the daily predation rate of individual P. japonica of both sexes was collected for each predatory stage. The net predation rate for P. japonica is 1199.5 aphids.