中国生物防治学报2025，Vol.41Issue(5)：998-1007,10.DOI:10.16409/j.cnki.2095-039x.2025.01.012
美国白蛾在特拉华州的取食偏好性及天敌招引试验初报
Preliminary Studies on Feeding Preference and Natural Enemy Attraction of Fall Webworm from Delaware
摘要
Abstract
The fall webworm,Hyphantria cunea(Drury)(Lepidoptera:Arctiidae),is an international quarantine insect pest.After invasion to China,it rapidly spreads and becomes a major pest,showing an expanding population trend.The absence of effective natural enemies in China has been a key factor for the high population density of the fall webworm.In its native range,the fall webworm is considered a minor pest,and available literature on its occurrence and natural enemies is limited and mostly outdated.Therefore,investigating the occurrence of the pest and its natural enemies in its native range not only enriches our understanding of its biology but also provides valuable insights for managing and controlling the pest in invaded regions.Based on the occurrence investigation conducted in Delaware,USA,the feeding preferences and natural enemies of the fall webworm were further examined in its native range.The results revealed that,among the 39 plant species investigated in Delaware,the fall webworm fed on 33 species,with 25 species being particularly preferred.The species were:Fraxinus pennsylvanica,Quercus rubra,Rubus coreanus,Rhamnus utilis,Pyrus calleryana,Betula nigra,Juglans nigra,Quercus aliena,Cercis canadensis,Lonicera chrysantha,Lonicera macckii,Paulownia tomentosa,Ilex opaca,Chionanthus virginicus,Lindera glauca,Acer platanoides,Cerasus avium,Viburnum acerifolium,Morus alba,Prunusperulata,Tilia cordata,Viburnum plicatum,Erechtites hieraciifolius,Acalypha australis,and Celastrus orbiculatus.The preferred plant species in USA differed from those in China.Compared to the pests in pure forests,the pupae of fall webworm in mixed forests were attacked by more species of natural enemies,for longer durations,and at higher probability.The primary predators of the fall webworm in its native range were ants,ladybugs,and jumping spiders,while its pupae were parasitized by parasitic flies.In the future,continue survey of the parasitoid species in the native range is needed,which may provide technology and products for biological control of the pest in the invaded areas.关键词
美国白蛾/原产地/取食偏好性/天敌资源/生物防治Key words
Hyphantria cunea/native range/feeding preferences/natural enemy resources/biological control分类
植物保护学引用本文复制引用
李翰扬,党英侨,曹亮明,王小艺..美国白蛾在特拉华州的取食偏好性及天敌招引试验初报[J].中国生物防治学报,2025,41(5):998-1007,10.基金项目
国家重点研发计划(2021YFD1400300) （2021YFD1400300）
