内蒙古自治区四子王旗马铃薯田蚜虫群落组成

Composition of Aphid Community in Potato Field in Siziwang Banner,Inner Mongolia Autonomous Region

中国马铃薯生产常遭受病毒病影响,蚜虫是马铃薯病毒病传播重要媒介。2021与2022年7月和8月,在内蒙古自治区乌兰察布市四子王旗使用黄板和黄皿诱蚜器采集马铃薯田蚜虫,进行种类鉴定和群落结构分析。当地马铃薯田蚜虫共计18属24种。其中,桃粉大尾蚜(Hyalopterus pruni)、棉蚜(Aphis gossypii)、桃蚜(Myzus persicae)、豆蚜(A.craccivora)、苜蓿无网蚜(Acyrthosiphon kondoi)、奇异粗腿蚜(Macropodaphis paradoxa)、荻草谷网蚜(Sitobion miscanthi)及禾谷缢管蚜(Rhopalosiphum padi)为优势种。根据蚜虫群落多样性指数、丰富度指数及均匀度指数分析可知,优势种群相对数量随时间增长变化较小,表明该地区马铃薯田蚜虫群落构成相对稳定。研究结果有助于当地开展马铃薯田蚜虫监测和防治工作。

Potato production in China is often affected by viral diseases,and aphids are important vectors for the transmission of potato viral diseases.From July to August 2021 and 2022,aphids in potato fields were collected in Siziwang Banner,Wulanchabu City,Inner Mongolia Autonomous Region using yellow trap and yellow plate,and the species identification and community structure analysis of the collected samples were carried out.Eighteen genera and 24 species of aphids in the local potato fields were identified.Among them,Hyalopterus pruni,Aphis gossypii,Myzus persicae,A.craccivora,Acyrthosiphon kondoi,Macropodaphis paradoxa,Sitobion miscanthi and Rhopalosiphum padi were the dominant species.According to the analysis of the diversity index,richness index and evenness index of the aphid community,the relative number of dominant populations changed little with time,which indicates that the composition of the aphid community in the potato field in this region is relatively stable.The experimental results would lay a research foundation for the monitor and control of aphids in local potato fields.