Impact of minimum winter temperature on Lycorma delicatula (Hemiptera: Fulgoridae) egg mortality |
| |
Authors: | Jung-Su Lee Il-Kwon Kim Sang-Hyun Koh Sung Jong Cho Suk-Jun Jang Seung-Hyeon Pyo Won IL Choi |
| |
Institution: | 1. Division of Forest Disease and Insect Pests, Korea Forest Research Institute, Seoul, Republic of Korea;2. Jeonbuk Institute of Forest Protection & Management Research, Jinan, Republic of Korea;3. Gangwon-do Forest Development Institute, Chuncheon, Republic of Korea;4. Chungcheongbuk-do Institute of Forest Protection & Management Research, Cheongwon, Republic of Korea |
| |
Abstract: | Climate change, especially winter temperature increase, may be a factor the recent occurrence and range expansion of Lycorma delicatula (White) in South Korea. Egg mortality increased as minimum winter temperature decreased. Egg mortality was highest (93.32%) in Chuncheon, where the mean minimum winter temperature was lowest. The temperature that induced complete mortality of fulgorid eggs was estimated to be ?3.44 °C on the basis of mean daily temperatures from December 2009 to February 2010 and ?12.72 °C on the basis of mean daily minimum temperatures in January 2010. Mean winter temperatures during the last 30 years have gradually increased to above the temperature for 100% mortality of the fulgorid egg. This suggests that the winter temperature increase may contribute to the successful settlement of the fulgorid in South Korea and its subsequent outbreak and expansion. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|