LAUSR

Abstract The brown marmorated stink bug, Halyomorpha halys (Stal), is a polyphagous pest affecting agricultural and forest ecosystems. Despite valuable results from the previous studies, the survival and developmental variation models of the immature development of H. halys and major component models describing reproduction of female adults have not been developed yet. This study was conducted to investigate the stage-specific development and survival of H. halys immatures by combining the results of previous studies and this study. An adult development rate model and three major oviposition component models of H. halys were also developed. Development rates were fitted with a nonlinear Briere model, which estimated optimal temperatures as 32.0 and 30.8 °C, lower development thresholds as 10.0 and 13.1 °C, and upper development thresholds as 33.6 and 33.5 °C for egg and nymph, respectively. In a linear model, the lower development thresholds were 12.5 and 12.8 °C for egg and nymph, respectively. Survivorship was the highest at 24.2 and 24.5 °C for egg and nymph, respectively. Mean fecundity ranged from 8.3 eggs at 18.8 °C to 64.3 eggs at 30.3 °C, and was fitted to the Lactin function. Adult survival and the cumulative oviposition rate of H. halys were fitted to a sigmoid function and a two-parameter Weibull function, respectively. Findings in this study provide basic information for the ecology of H. halys, which can be used to optimize environmental conditions for rearing, forecast its phenology and population dynamics in the fields, and predict future distribution of H. halys.