苹果园蓟马种类多样性及其优势种种群动态OA

[Objective]To understand the diversity and population dynamics of thrips in apple orchards in Huize County,Qujing City,Yunnan Province,provides a basic information for the integrated management of thrips.[Method]In this study,a systematic survey of thrips species and quantities was conducted in the apple orchard of Huize County,using the five-point sampling method.The diversity of thrips species and seasonal variation in apple orchard was analyzed.Meanwhile,blue sticky traps and yellow sticky traps were used to monitor the population dynamics of dominant thrips species in the orchard.[Result]A total of 461 adult thrips were collected from the apple orchard,identified morphologically as belonging to 2 families,4 genera,and 9 species:Frankliniella occidentalis,F.intonsa,Thrips flavus,T.hawaiiensis,T.major,T.palmi,T.tabaci,Megalurothrips distalis,and Haplothrips chinensis.Among them,209 western flower thrips(Frankliniella occidentalis)were collected,accounting for 45.34%of the total,representing the dominant species.Seasonal diversity analysis indicated that in summer,the number and variety of thrips were highest,species distribution was even,community structure was stable,and no dominant species was observed.In spring,thrips numbers were lowest,species were moderate,the community was in a recovery stage,and the control effect of dominant species was weakened.In autumn,thrips numbers were moderate,species were fewest,and the dominant species,western flower thrips,prevailed,with decreased community evenness.Population dynamics monitoring showed that peaks of western flower thrips occurrence in the apple orchard were in early June and September.[Conclusion]Nine thrips species were identified in Huize County apple orchards,preliminarily revealing the occurrence patterns from June to November,providing basic information for the development of a scientific integrated management system and supporting high-quality development of the regional apple industry.