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Effect of temperature on the population growth of Tirathaba rufivena (Lepidoptera: Pyralidae) on Areca catechu (Arecaceae)

文献类型： 外文期刊

作者： Zhong, Baozhu 1 ; Lu, Chaojun 1 ; Qin, Weiquan 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Coconut Res Inst, Wenchang 571339, Hainan, Peoples R China

关键词： insect pest;development time;reproduction;survival;life table

期刊名称：FLORIDA ENTOMOLOGIST （ 影响因子：1.425； 五年影响因子：1.595 ）

ISSN： 0015-4040

年卷期： 2017 年 100 卷 3 期

页码：

收录情况： SCI

摘要： Tirathaba rufivena Walker (Lepidoptera: Pyralidae) is a major insect pest of Arecaceae such as Areca catechu L. (areca), Cocos nucifera L. (coconut), and Elaeis guineensis Jacq. (African oil palm). The larvae feed mainly on the palm flowers, fruits, and leaves, leading to the dropping of flowers and fruits, and they have caused economic damage and crop losses. In order to provide a foundation for the forecasting and scientific management of this pest, the effect of temperature on the development time, survival, and reproduction of T. rufivena reared on A. catechu was studied at 7 constant temperatures (16, 20, 24, 28, 32, 36, and 40 degrees C). The lower development threshold temperature and the effective accumulated temperature for the completion of the life cycle were 13.4 degrees C and 1,428.6 degree-days, respectively. The highest survival rate (30.0%) occurred at 28 degrees C. Eggs failed to survive at 16 and 40 degrees C. The population trend index (I = 19.04) and net reproductive rate (R-0 = 10.40) were highest at 28 degrees C. The net reproductive rate (R-0 = 4.13), intrinsic rate of increase (r(m) = 0.0334), and finite capacity of increase (lambda = 1.0340) were lowest at 20 degrees C. The mean generation time (T-0 = 18.70) was shortest at 36 degrees C. The population doubling time (PDT = 7.77) was shortest at 28 degrees C. Based on these results, we concluded that temperatures from 28 to 32 degrees C were most suitable for the development of T. rufivena reared on A. catechu.

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