摘要
2008年对位于三江平原腹地大豆试验田的大豆蚜虫及其天敌发生情况进行了定点、定期调查。结果表明：6月22日~8月20日是大豆蚜虫的发生与危害期,盛发期是7月15日~8月7日;大豆蚜虫天敌主要以小花蝽、瓢虫、草蛉、食蚜蝇为主,小花蝽和食蚜蝇数量达到峰值的时间分别为8月6日和8月16日,草蛉和瓢虫数量达到峰值的时间为8月21日;大豆蚜虫天敌数量达到峰值的时间比大豆蚜虫滞后10~15 d左右。
The occurrence of soybean aphid and its natural enemies were investigated in soybean experimental plot at the center of the Sanjiang plain area in 2008.The results showed that the occurrence and harm period of soybean aphid was from June 22nd to Aug 20th,the full incidence period was from July 15th to Aug 7th.Main natural enemies of soybean aphid were Orius,Coccinellidae,Chrysopidae and Syrphidael.Peak time of minute pirate bug and syrphid fly were Aug 6th and Aug 16th,respectively.Lacewing and ladybird were Aug 21st.The peak time of soybean aphid was earlier than its natural enemies for 10 to 15 days.
出处
《大豆科学》
CAS
CSCD
北大核心
2011年第4期700-702,共3页
Soybean Science
基金
公益性行业(农业)科研专项经费项目(201103022-5-06)
关键词
三江平原
大豆蚜虫
天敌
发生规律
Soybean aphid
Natural enemy
Occurrence regularity
