摘要
江苏沿海旱粮棉区玉米螟寄生性天敌有８种，其中优势种为赤眼蜂及螟虫长距茧蜂。玉米上一、二代玉米螟幼虫受螟虫长距茧蜂的寄生，对棉田玉米螟的发生有直接影响，可使发生期推迟２～５天。
In the field surveys conducted during 1983 1989,eight species of parasitic wasp s were found attacking the Asian corn borer(ACB)in cotton fields in the coastal grain a nd cotton growing areas of Jiangsu Province.A braconid, Macrocentrus linearis was found to be the predominant species.The occurrence of the ACB population p e ak was delayed for 2 5 days due to high parasitization rate by the braconid par asitoid.Crop damage by ACB was also reduced.
基金
江苏省八五重大攻关
关键词
玉米螟
棉花
玉米
螟虫长距茧蜂
Ostrinia furnacalis Macrocentrus Line aris cotton pest
