Suitability of common crop- and non-crop plants for Spodoptera frugiperda development in tropical Asia
文献类型: 外文期刊
作者: Fang, Yiwei;He, Limei;Zhao, Shengyuan;Wyckhuys, Kris A. G.;Wu, Kongming
作者机构:
关键词: fall armyworm;host range;life table;invasive pest;Southeast Asia
期刊名称: PEST MANAGEMENT SCIENCE
ISSN: 1526-498X
年卷期: 2025 年
页码:
收录情况: SCIE(2025版)
摘要: BACKGROUND For the newly invasive fall armyworm (FAW; Spodoptera frugiperda Smith), large parts of Southeast Asia serve as a year-round breeding ground and a source of spring or summer migrants. So far, the host suitability data for crop- and non-crop species in the China-Myanmar-Lao border is still absent. Here, using life table analyses, we investigated FAW larval feeding and development on locally dominant crop and non-crop species.RESULTS Among a panel of 17 locally relevant plant species, FAW exhibited the highest survival and fecundity on Zea mays. Meanwhile, field crops such as Manihot esculenta or Musa acuminata and weeds such as Sonchus wightianus, Arachis duranensis, and Sphagneticola trilobata act as potential alternate hosts supported under laboratory conditions. Larval development cannot be completed on Bidens alba and eight other plants, whereas FAW reproduction was not observed on Plantago asiatica and Hevea brasiliensis. On Z. mays, FAW exhibited the highest intrinsic rate of increase (r) and finite rate of increase (lambda), the shortest mean generation time (T), and the highest net reproductive rate (R0). FAW attained the highest population growth on Z. mays, followed by M. esculenta, S. wightianus, M. acuminata, and A. duranensis. Larval feeding preferences were consistent with the ranking of host plant adaptability.CONCLUSION In the border region between Lao PDR, Myanmar and China, local FAW populations readily develop on locally prevalent crop- and non-crop plants including Z. mays, M. esculenta, M. acuminata, S. wightianus, A. duranensis, and S. trilobata. (c) 2025 Society of Chemical Industry.
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