The effects of temperature on the development of the moth Athetis lepigone, and a prediction of field occurrence
文献类型: 外文期刊
第一作者: Li, Li-Tao
作者: Li, Li-Tao;Wang, Yu-Qiang;Ma, Ji-Fang;Liu, Lei;Gan, Yao-Jin;Dong, Zhi-Ping;Wang, Yu-Qiang;Hao, Yan-Tang;Dong, Chao;Wang, Qin-Ying
作者机构:
关键词: developmental duration;developmental threshold temperature;effective accumulative temperature;generation;life table
期刊名称:JOURNAL OF INSECT SCIENCE ( 影响因子:1.857; 五年影响因子:1.904 )
ISSN: 1536-2442
年卷期: 2013 年 13 卷
页码:
收录情况: SCI
摘要: Athetis lepigone (Moschler) (Lepidoptera: Noctuidae) is an important insect pest of corn crops in China. To determine the effect of temperature on A. lepigone growth, and to provide a forecasting model for this pest, the development and fecundity of A. lepigone under five different temperatures (18, 21, 24, 27, 30 degrees C) was investigated, and an experimental population life table was constructed based on the obtained results. The results showed that the duration of development of A. lepigone decreased as the temperature increased from 18 to 30 degrees C. Approximately 95% of mature larvae stopped pupating at 18 degrees C, and about 70% of mature larvae stopped pupating at 21 degrees C. When the growth chamber temperature was above 24 degrees C, no growth arrest was observed. The results indicated that the optimum growth temperature of A. lepigone was about 26.47 degrees C. In this study, the highest survival rate, fecundity per female, and population index trend were observed when the temperature was set at 27 degrees C. The percentages of larvae that could spin cocoons after the 5th or 6th instar differed at the different temperatures. The developmental threshold temperatures for A. lepigone eggs, larvae, pre-pupae, pupae, pre-oviposition females, and the whole generation (i.e., egg to oviposition) were 11.03, 9.04, 15.08, 11.79, 11.63, and 10.84 degrees C, respectively, and their effective accumulative temperatures were 63.51, 339.42, 30.04, 118.41, 35.06 and 574.08 degree-days, respectively. Based on the effective accumulative temperature law, this pest insect can have four generations in most of the Huang-Huai region of China, and two to three generations annually in some cold regions. Athetis lepigone may have four generations in the mid-southern part of Hebei Province. This prediction matches the field survey results.
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