27种杀虫剂对美国白蛾幼虫的室内毒力比较  被引量:15

Toxicity Comparison of 27Insecticides to Hyphantria cunea

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作  者:刘永强[1] 周超[1] 王伟[1] 慕卫[1] 胡延萍 

机构地区:[1]山东农业大学植物保护学院农药系农药毒力与应用重点实验室,泰安271018 [2]山东省章丘市植物保护站,章丘250200

出  处:《林业科学》2012年第4期167-170,共4页Scientia Silvae Sinicae

摘  要:美国白蛾(Hyphantria cunea)始发于北美,属鳞翅目,灯蛾科(Liuetal.,2006),为害行道树、花卉、果树和大田作物等。1979年中朝边境首次发现后,由北向南逐年扩展,京、津、辽、冀、鲁均有暴发历史(魏晓棠等,2006)。Toxicity of 27 insecticides belonging to nine different types against the 3rd-instar and 5th-instar larvae of Hyphantria cunea was investigated by the leaf dipping method.The results showed that the 3rd-instar and 5th-instar larvae of H.cunea were sensitive to pyrethroids and molting hormones insecticides(LC50 values were between 0.11 mg·L^-1 and 18.81 mg·L^-1).The toxicity of organochlorus and carbonates insecticides was related to the types of insecticides.Phoxim,Chlorpyrifos,Profenofos,Ethoprophos and Methomyl had higher toxicity to both 3rd-instar and 5th-instar larvae of H.cunea(LC50 values were between 1.62 mg·L^-1 and 42.74 mg·L^-1).The 3 rd-instar larvae of H.cunea were sensitive to the benzoyl phenyl urea,phenylpyrazole,macrocyclic lactone and organochlorines insecticides(LC50 values were between 3.13 mg·L^-1 and 30.86 mg·L^-1).However the 5th-instar larvae of H.cunea were less sensitive(LC50 values were higher than 51.75 mg·L^-1).

关 键 词:美国白蛾 杀虫剂 相对毒力 浸叶法 

分 类 号:S767.34[农业科学—森林保护学]

 

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