摘要
南京地区夏大豆田的定殖蚜虫主要是大豆蚜(Aphis glycines)。1987和1988两年黄皿共诱到29种蚜虫,其中以大豆蚜数量最多,是传播SMV的主要介体,其他介体蚜虫有:绣线菊蚜(A.citricola),豆蚜(A.craccivora)、棉蚜(A.gossypii)、萝卜蚜(Lipaphis erysimi)、桃蚜(Myzus persicae)、玉米蚜(Rhopalosiphum maidis)、麦二叉蚜(Schizaphis graminum)和二叶草彩斑蚜(Therioaphis trifolii)。1987年蚜虫迁飞峰出现在大豆花期以前,2周后田间出现发病高峰,SMV发病增长率与蚜虫迁飞量呈显著的线性正相关(P<0.01);1988年蚜虫迁飞峰发生在大豆花期以后,其迁飞量与SMV的流行无显著线性相关(P>0.05)。
During 1987—1988,yellow pan traps were used in monitoring vectoractivity in summer soybean fields in Nanjing area.Because of thedifferent climatic and environmental conditions,the phenology andnumbers of alataes varied considerably.The aphids which colonizedsoybean were Aphis glycines,few A.craccivora and A.gossypii were
found on soybean plants,Out of 29 species traped in the two yearsexperiments,Aphis tricola,A.craccivora,A.glycines,A.gossypii,Lipaphis erysimi,M yzus persicae,Rhopalosiphum maidis,Schizaphis
graminum and Therioaphis trifolii were known as SMV vectors.Aphisglycines was the main vector which spreaded SMV in summer soybeanfields.In 1987,the migrate peak of aphids occured in the early grow-ing stage of soybean,the peak of disease incidence appeared two weekslater,and the increase rate of disease incidence was found to have
positive correlation with the number of aphids,while in 1988,aphidshad a migrate peak after the flowering of soybean and its populationwas not relevant to the epidemic of SMV.
出处
《植物保护学报》
CAS
CSCD
北大核心
1991年第2期123-126,共4页
Journal of Plant Protection
关键词
大豆
介体
蚜虫
大豆花叶病毒
流行
soybean
vector
aphid
soybean mosaic virus(SMV)
epidemic
