Population Dynamics and Nutritional Indices of Spodoptera frugiperda (Lepidoptera: Noctuidae) Reared on Three Crop Species
文献类型： 外文期刊
作者： Gebretsadik, Kifle Gebreegziabiher 1 ; Li, Xiangyong 1 ; Yin, Yanqiong 1 ; Zhao, Xueqing 1 ; Chen, Fushou 1 ; Zhang, Hongmei 1 ; Wang, Yan 1 ; Liu, Ying 1 ; Hu, Gao 4 ; Chen, Aidong 1 ;
作者机构： 1.Yunnan Acad Agr Sci, Agr Environm & Resource Res Inst, Key Lab Green Prevent & Control Agr Transboundary, Kunming 650205, Peoples R China
2.Henan Univ, Sch Life Sci, State Key Lab Cotton Biol, Key Lab Plant Stress Biol, Kaifeng 475001, Peoples R China
3.Tigray Agr Res Inst TARI, POB 492, Mekelle, Ethiopia
4.Nanjing Agr Univ, Coll Plant Protect, Dept Entomol, Nanjing 210095, Peoples R China
关键词： fall armyworm; populations; life table; sorghum; sugarcane; maize
期刊名称：LIFE-BASEL （ 影响因子：3.4； 五年影响因子：3.4 ）
ISSN：
年卷期： 2024 年 14 卷 12 期
页码：
收录情况： SCI
摘要： The fall armyworm (FAW) is an invasive pest that has been rapidly spreading across China since its detection in Yunnan province in January 2019. Although sugarcane and sorghum have been reported as hosts, their effects on FAW's population growth and life table parameters have not been examined in China. Our research shows that FAW's development and life table metrics vary significantly when reared on sorghum, sugarcane, and maize. Notably, the preadult stage, adult preoviposition period, and total preoviposition period of FAW were markedly longer on sugarcane and sorghum compared to maize. FAW reared on these two crops also exhibited reduced survival rates, pupal weight, fecundity, and lower female-to-male ratios. The study highlights that FAW had lower population growth rates, reproductive rates, and longer generation times on sugarcane and sorghum compared to maize. The consumption index and digestibility index were higher on maize, while conversion efficiency and growth rate were greater on sorghum. Although maize is the most favorable host, FAW can still survive and reproduce on sugarcane and sorghum during the nongrowing season, posing a risk to economically important crops in China. Despite being less favorable for population growth, sugarcane and sorghum still support FAW development and spread. Therefore, enhanced surveillance and early warning measures for sugarcane and sorghum are recommended to monitor FAW population dynamics and mitigate its potential impact on primary host plants.
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