杉无毛瘿螨防治研究

Study on the Control of Asetacus cunninghamiae

根据武义、金华等县部分杉木基地林中所发现的杉无毛瘿螨严重危害情况，采用三氯杀螨醇、单甲脒、双甲脒、氮化乐果、小胺磷、尼索朗、克螨锡７种农药进行室内外药效试验，结果证明。三氯杀螨醇、单甲脒、以甲脒、氧化乐果、克螨锡５种农药都有一定防治效果。其中克螨锡防效最好，双甲脒次之。林间采用２５％克螨锡可湿性粉２０００倍液进行大面积防治，防效达８８．６％。每公顷防治成本２４．

The acarid Asetacus cunninghamiae Kuang heavily damaged Chinese fir[Cunninghamia lanceolata(Lamb.)Hook.]in the juvenile stand of Wuyi, Jinhua and othercounties of Zhejiang Povince. To control the pest,seven insecticides were tested in laborato-ry and field,five of them(dicofol,omethoate,fembutatin oxide,amitraz,danjiamei)hadgood effects. Fenbutatin oxide(1:2 000)was used to control the acarid in the large forestarea. The mortality reached 88.6%and the cost was 24.89 RMB yuan/hm2.