Temperature-dependent development and oviposition models of Halyomorpha halys (Hemiptera: Pentatomidae)

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 .