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Performance of the Fall Armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae), over Three Generations on Four Maize Cultivars

文献类型： 外文期刊

作者： Zhang, Bo 1 ; Yi, Jing 1 ; Yan, Yan 1 ; Wang, Yirui 1 ; Xue, Yana 1 ; Yan, Haiwang 1 ; Ren, Meifeng 1 ; Li, Daqi 1 ; Li, Guoping 2 ; Lu, Junjiao 1 ;

作者机构： 1.Shanxi Agr Univ, Coll Plant Protect, Shanxi Key Lab Bioagent Utilizat & Ecopesticide In, Taiyuan 030031, Peoples R China

2.Henan Acad Agr Sci, Inst Plant Protect, Zhengzhou 450002, Peoples R China

关键词： insect-plant interactions; pest control; agricultural entomology; crop protection; control technology

期刊名称：INSECTS （ 影响因子：2.9； 五年影响因子：3.3 ）

ISSN：

年卷期： 2025 年 16 卷 7 期

页码：

收录情况： SCI

摘要： The fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith), is a highly destructive pest that poses serious threats and causes significant losses to the production of maize in China. This study evaluated the feeding and oviposition preferences of S. frugiperda when reared on four maize cultivars-sweet, waxy, common, and silage-across three consecutive generations. It also compared population adaptability among these cultivars and analyzed population parameters between the F1 and F3 generations. The findings revealed that all four F1 generation populations showed a preference for feeding and oviposition on sweet maize. However, over time, S. frugiperda exhibited a stronger preference, in terms of feeding and oviposition behaviors, for the natal host plant across three consecutive generations of rearing. The fall armyworm completed its life cycle and oviposited on all four maize varieties over three generations. The sweet cultivar population had the highest intrinsic rate of increase, finite rate of increase, net reproductive rate, larval survival rate, pupation rate, eclosion rate, fecundity, and pupal weight, while the silage cultivar population had the shortest larval stage, pre-adult stage, and adult lifespan and the pupal weight and the fecundity were the lowest. Overall, the population fitness was the highest on the sweet cultivar, and the lowest on the silage cultivar. Compared with F1, the F3 generation of the FAW had a significantly shorter developmental duration in four maize cultivars. Except for the waxy maize cultivars, the fecundity of the other three cultivars did not differ significantly between F1 and F3. This study provides fundamental information on the trend of fall armyworm population changes in maize fields and serves as a reference for rational maize cultivar planting decisions.

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