Survey on Pest Species and Natural Enemies of Beta vulgaris in Northern Xinjiang

CHEN Haijun; LIU Zhekang; SUN Jian; ZHANG Han; ZHANG Jingjing; ZHANG Xuehui; QI Shusen; LI Qin

doi:10.19590/j.cnki.1008-1038.2025.09.009

Abstract：Beta vulgaris L.is an important economic crop and is widely planted in Xinjiang.However,it is damaged by various pests,which seriously restricts their yield and sugar content.At present,there is no systematic report on the types of sugar beet pests and natural enemy resources in northern Xinjiang.From May to October in 2023 and from May to September in 2024,through the method of setting sample plots,using methods such as collecting damaged leaves or stems by hand,trapping with sex attractants,and combining net sweeping collection with Malaise trap collection,field investigations and indoor rearing of sugar beet pests were conducted on sugar beet pest and parasitic natural enemy insect resources in 25 sugar beet fields in 7 counties and cities in 3 regions(Changji Prefecture,Yili Prefecture and Tacheng Prefecture)in northern Xinjiang.The hazard characteristics and occurrence patterns were observed and recorded.The research results found a total of 6 sugar beet pests(namely Helicoverpa armigera Hübner,Mamestra brassicae Linnaeus,Monolepta hieroglyphica Motschulsky,Pegomyia hyosciami Panzer,Lixus subtilis Boheman and Spodoptera exigua Hübner and 3 superfamilies and 9 families of parasitic natural enemy insects.It was clear that L.subtilis Boheman and S.exigua were two important pests of sugar beets.The hazard characteristics and occurrence patterns of the above 6 sugar beet pests were provided,and the population dynamics diagrams of two important sugar beet pests as well as the pictures of various insect states and their hazards were provided.The research results of this study provided preliminary basic theoretical data for the biological control of sugar beet pests by using parasitic natural enemy insects.