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若干杀虫剂与除草剂对蜡蚧轮枝菌孢子萌发的影响
Effect of Some Pesticides and Herbicides on the Germination of Verticillium lecanii
【Author】 XIE Ming WU Chang QIU Weiliang WAN Fanghaol (Institute of Biological Control,CAAS,Beijing 100081,China)
【机构】 中国农业科学院生物防治研究所; 湖南农业大学植保系;
【摘要】 <正>本研究测定12种杀虫剂和5种除草剂对蜡蚧轮枝菌孢子萌发的影响。结果表明,杀虫剂绿宝及菜蛾敌两品种与蜡蚧轮枝菌完全兼容,在50倍下未检出有杀伤作用。天霸对蜡蚧轮枝菌孢子萌发无明显影响,,安全值(LC50与田间使用浓度之比)较高(11.49),可与蜡蚧轮枝菌兼容使用。先力、一遍净对蜡蚧轮枝菌孢子萌发有一定的影响(LC50分别为2.486×10-3和1.163×10-4),安全值为6.9-7.5,可在一定程度上兼容使用。万灵、氯氰菊酯、敌杀死、功夫乳油、虫死净、速蚧克、来福灵等
【Abstract】 The effect of 12 pesticides and 5 herbicides on the germination of conidia of Verticillium lecanii were investigated in this paper.The results showed:pesticide Lubao (Avermectin) and Caiedi(Bt+Avermectin) can be compatible with Verticillium lacanii completely.Tianba(Bt WP) has slight suppression effect on the Verticillium lecanii(LC50 = 7.18×10-3,Safety value= 11.49) and can be used together.Xianli(Bt Water dispersal formulation) and Imidacloprid(WP) have some suppressive effect on Verticillium lecanii(LC50:2.486×10-3 and 1.163×10-4) and can be used together in some extension (S = 6.9- 7.5).Wanling,Cypermethrin,Deltamethrin,Cyhalothrin,Chongsijing, Shujieke,Esfenvalerate have high suppression effect(LC50:5.93×10-4、3.17×10-5、5.93×10-6、2.22×10-6、9.52×10-5、5.15×10-5、1.77×10-5) on Verticillium lecanii and can not be used together(S=1-2.6).Among the herbicides,only Nicosulfuron has no any suppression to Verticillium lecanii.Then haloxyfop-R-methyl,Nitrofen, Bensulfuron methyl and Quizalofop-ethyl have suppression to Vertillium lecanii (LC50:1.740×10-4,1.881×10-4、5.943×10-5,2.908×10-5) and have no compatiblity with Verticillium lecanii(S= 1.61-0.29).But the toxicity can be reduced in the field and the germination rate can reach to 87%-93%after exposed 2 to 4 days at the application concentration in the field although those chemicals are high toxic to Verticillium lecanii.The interval duration such as 2-4 days should be take consideration in the field application.
【Key words】 Verticillium lecanii; restraint of germination; pesticides; herbicides;
- 【会议录名称】 全国生物防治暨第八届杀虫微生物学术研讨会论文摘要集
- 【会议名称】全国生物防治暨第八届杀虫微生物学术研讨会
- 【会议时间】2000-11-25
- 【会议地点】中国广东珠海
- 【分类号】S476.12
- 【主办单位】中国农业科学院生物防治研究所、中国科学院武汉病毒研究所、中山大学生物防治国家重点实验室