The developmental time and survival of overwintering larvae of Monochamus saltuarius were studied at 7 constant temperatures (16, 20, 23, 25, 27, 30, 34℃), and a photoperiod of 16 : 8 (L : D) h. The total mortality of overwintering M. saltuarius was lowest at 27℃ (7%) and highest at 34℃ (93%). The total developmental time decreased with increasing temperature between 16℃ (49.48 days) and 34℃ (13.00 days). The relationship between the developmental rate and temperature was fitted by five nonlinear developmental rate models (Logan 6, Lactin 1, 2 and Briere 1, 2). The nonlinear shape of temperature development was best described by the Briere 1 model (r2=0.99). The developmental variation of overwintering larvae was well described by the three-parameter Weibull distribution model (r2=0.98). The temperature-dependent developmental models of M. saltuarius developed in this study could be used to predict emergence period of the adult, or to develop a population dynamics model of M. saltuarius.

• Sang-Hyun Koh(Division of Forest Insect Pests & Diseases, Korea Forest Research Institute)
• Jeongjoon Ahn(School of Bioresource Sciences, Andong National University)
• Won Il Choi(Division of Forest Insect Pests & Diseases, Korea Forest Research Institute)
• Sang Gil Lee(Division of Forest Insect Pests & Diseases, Korea Forest Research Institute)
• Youngwoo Nam(Division of Forest Insect Pests & Diseases, Korea Forest Research Institute)
• Tae Su Kim(Division of Forest Insect Pests & Diseases, Korea Forest Research Institute)
• Chong Kyu Lee(Department of Forest Resources, Gyeongnam National University of Science and Technology)