常用杀虫剂对橡副珠蜡蚧及副珠蜡蚧阔柄跳小蜂的选择毒杀作用  

Selective Toxicity of Common Insecticides to Parasaissetia nigra and Metaphycus parasaissetiae

作　　者：张方平[1] 朱俊洪[2] 李聪[2] 韩冬银[1] 张敬宝[1] 符悦冠[1] 

机构地区：[1]中国热带农业科学院环境与植物保护研究所农业部热带农林有害生物入侵与控制重点开放实验室海南省热带农业有害生物检测监控重点实验室,海南儋州571737 [2]海南大学环境与植保护学院,海南儋州571737

出　　处：《热带作物学报》2010年第1期116-121,共6页Chinese Journal of Tropical Crops

基　　金：农业公益性行业科研专项经费(nyhyzx07-033-2);南亚热带作物专项经费("ZBC200804");国家天然橡胶产业技术体系经费(nycytx-34-GW2-4-4);国家支撑计划(2007BAD48B04)资助

摘　　要：研究6种常用杀虫剂[三氯氟氰菊酯、乐果、高净蚧、敌介灵、毒死蜱及自行混剂(乐果+毒死蜱)]对橡副珠蜡蚧(Parasaissetia nigra Nietner)及其寄生性天敌副珠蜡蚧阔柄跳小蜂(Metaphycus parasaissetiae Zhang and Huang)的毒性。结果表明:乐果、毒死蜱、混剂对橡副珠蜡蚧成虫有明显的毒杀作用,其余药剂对橡副珠蜡蚧成虫的毒性较小;所有供试药剂对橡副珠蜡蚧3龄若虫和跳小蜂成虫毒性大,对副珠蜡蚧跳小蜂幼虫期和蛹期存活影响小,但药剂处理蛹期和幼虫期的跳小蜂都能缩短其羽化后成虫寿命。综合考虑:在橡副珠蜡蚧大发生而跳小蜂较多的胶园可优先选用乐果和毒死蜱进行防治。Toxicity of 6 common insecticides to Parasaissetia nigra and its natural parasite enemy Metaphycus parasaissetiae was studied in the laboratory. The result showed that dimethoate and chlorpyrifos and their mixture were distinctly toxic to the adults of P. nigra. The other insecticides were low in toxicity to the adults of P. nigra. All the insecticides were obviously high in toxicity to the third instar nymphs of P. nigra and to the adults of M.parasaissetiae. All the insecticides were shown to have little impact to the larva and pupa of M.parasaissetiae, but to reduce the life of the adults emerging from the pupae and larvae treated. Considering the toxicity of all the insecticides to P. nigra and M. parasaissetiae, dimethoate and chlorpyrifos are recommended to control P. nigra at its outbreak when M. parasaissetiae is relatively abundant.

关 键 词：杀虫剂 橡副珠蜡蚧 副珠蜡蚧阔柄跳小蜂 选择毒性 

分 类 号：S433[农业科学—农业昆虫与害虫防治]