Comestible and temperature effects on the biological traits of fall armyworms, Spodoptera frugiperda
文献类型： 外文期刊
第一作者： Li, Fen
作者： Li, Fen;Wang, Likui;Lu, Rongcai;Wu, Shaoying;Peng, Zhengqiang;Lyu, Baoqian;Malhat, Farag
作者机构：
关键词： artificial diet; fall armyworm; Spodoptera frugiperda; two‐ sex life table
期刊名称：ENTOMOLOGICAL RESEARCH （ 影响因子：0.807； 五年影响因子：0.697 ）
ISSN： 1738-2297
年卷期：
页码：
收录情况： SCI
摘要： Spodoptera frugiperda is considered a serious pest for many crops throughout the world. Here, we develop an easy and quick-to-prepare solid medium with multiple benefits, including reductions in cost, post-rearing waste, storage space, and labor, for rearing S. frugiperda larvae. The body length and weight at each development stage showed no differences with those of the corn leaves treatment group (P > 0.05). The development time of F-0 generation from the first to adults stage was 51.27 +/- 4.62 days when the larvae were reared on artificial diet, which is slightly longer than the 50.69 +/- 4.56 days for those reared on corn leaves diet (P > 0.05). The temperature changes have no effect on body length and weight when the fall armyworms are reared on artificial diet, however, the influence of temperature change on development was more obvious. The development time was significantly longer at 18 degrees C and shorter at 35 degrees C than that at 25 degrees C (P < 0.05). Furthermore, in the age-specific two-sex life table method, the life table parameters (i.e., r, lambda, R-0, GRR) significantly decreased at 18 degrees C and 35 degrees C compared with those at 25 degrees C. The age-stage survival rate of S. frugiperda was higher on artificial diet at 25 degrees C than 18 degrees C, 35 degrees C, and on corn leaves at 25 degrees C in all stages. The 35 degrees C temperature change had more influence on the age-stage survival than the other temperatures. This study provided ideal indoor breeding conditions for fall armyworm and sufficient materials for further indoor and outdoor research.
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