8种化学药剂单独及两两联合染毒对松材线虫杀灭作用试验  

Toxicities of Eight Chemicals on Bursaphelenchus xylophilus

作　　者：龙鼎新[1] 伍一军[1] 李薇[1] 王琦[1] 秦启联[1] 

机构地区：[1]中国科学院动物研究所 农业虫害鼠害综合治理研究国家重点实验室

出　　处：《浙江林业科技》2006年第5期39-42,共4页Journal of Zhejiang Forestry Science and Technology

基　　金：中国科学院知识创新工程重大项目(KSCX1-SW-13-02-04);农业虫害鼠害综合治理研究国家重点实验室开放基金(A5203074)

摘　　要：8种药剂单个药剂的染毒结果表明,阿维菌素和硫酸铜在较低的浓度下对松材线虫即有较强的杀灭活性,其半数致死浓度(LC50)分别为0．060 1 mg/L和8．35 mg/L,其LC50的95％可信区间(95％CI)分别为0．041 6-0．0868 mg/L和6．16-11．34 mg/L。甲胺磷对松材线虫的毒性次之,其LC50为3 282．46mg/L(95％CI为2 779．71-3 872．58 mg/L),其它几种测试药剂(三邻甲苯基磷酸酯、甲醚菊酯、溴氰菊酯种比虫啉)的杀线活性很弱。联合染毒测定的结果表明,阿维菌素与硫酸铜、溴氰菊酯与硫酸铜以及溴氰菊酯与涕灭威分别联合使用对松材线虫表现出毒性增强作用(P<0．01),说明这几种测试药剂对松材线虫的毒杀作用具有协同效应。The acute toxicities of eight single chemicals on Bursaphelenchus xylophilus were tested by the methods of immersion in laboratory. The result showed that both Abamectin and copper sulfate （CuSO4@ 5H2O ） at low concentration had stronger nematicidal activity against the nematode. The median lethal concentrations （ LC50 ） of these two chemicais were 0.060 1 mg/L and 8.35 mg/L. And methamidophos with LC50 of 3 282.46 mg/L had weaker nematicidai activity than that of abamectin and copper sulfate. The nematicidai activities of other chemicais tested in this experiment, such as tri-o-cresyl phosphate, aidicarb, methothrin, deltamethrin, and imidacloprid were much weaker. The enhanced acute toxicity on B. xylophilus was observed in determination of combined application of deltamethrin and copper sulfate or aidicarb, and that of abamectin and copper sulfate to poisoning the nematode （ P 〈 0.01）.

关 键 词：松材线虫 化学农药 阿维菌素 硫酸铜 半致死浓度 

分 类 号：S763.1[农业科学—森林保护学]