间泽钝绥螨的分布及其控制柑桔红蜘蛛的效果

DISTRIBUTION OF AMBLSEIUS AIZAWAI EHARA ET BHANDHUFALCK AND ITS EFFICIENCY TO CONTROL PANONYCHUS CITRI MCGREGOR

经1988～1989年系统调查研究,明确间泽钝绥螨(Amblyseius aiawai Ehara etBhandhufalck)是柑桔红蜘蛛(panonychus citri Mcg)天敌中的优势种,初步查明其分布于贵阳、清镇、镇宁和独山等县市的海拔1000～1300公尺范围内,以贵阳、清镇两地数量居多。已知其栖息植物除柑桔外,还有串叶松香草等14种。两年保护利用试验和大面积示范结果表明,间泽钝绥螨完全可以有效地控制柑桔红蜘蛛的危害,可将其平均叶片虫数压低并保持在1头以下。

A systemic survey of Amblyseius aizawai Ehara et Bhandhufalck was conducted in 1938-1989.The resuit showed that this species was the superior one among the nature enemies of Panonydius citri MaGregor, which distributed in Guiyang, Qingzhen,Zhenning and Dushan where elevation was at 1000-1300 meters. There was more mite in Guiyang and Qingzhen. The habit plant of this mite was Silphinm perfoliaturnol etc. 14 plants except citrus. The results of protection and utilization of Amblyseius aizawai in plot and expanded area for 2 years showed that the damage caused by Panonydius ciiri Mcg could be successfully controlled by this mite,the average population on each leaf would be reduced less than 1 head.