摘要
为筛选对大棚菜豆美洲斑潜蝇寄生蜂毒性小的农药,在丽潜蝇姬小峰、潜蛾姬小峰等寄生蜂大龄幼虫至蛹期,用18种常用农药的常规剂量进行分区处理,试验结果表明：毒死蜱和联苯菊酯毒性最大,寄生蜂校正死亡率大于90%;阿维菌素中度有害,校正死亡率为55.29%;高氯、啶虫脒、哒螨灵、腈菌唑、嘧霉胺、霜脲锰锌处理的校正死亡率25%-45%;灭蝇胺、阿克泰、吡虫啉、氟硅唑、苯醚甲环唑、多菌灵、速克灵、安克、代森锰锌处理的校正死亡率则小于25%。此外,为验证药剂残留对寄生蜂的影响,调查了药后7 d羽化的成蜂48 h存活率,灭蝇胺处理的成蜂存活率接近90%,高氯、啶虫脒、哒螨灵、吡虫啉均在80%以上,阿维菌素为41.67%,阿克泰仅为8.33%;各杀菌剂处理药后5-7 d羽化的寄生蜂48 h存活率与清水对照无明显差异。
Susceptibility of the field parasitoids populations of Uriomyza sativae Blanchard to 18 currently used pesticides were tested by sprayed. The results showed as follows：There were some significant differences in toxicity of these insecticides to the larvae and pupae. The revised mortality of parasitoids treated by chlorpyrifos, bifenthrin were 〉 90 % ; which of abamectin treatment was 55.32 % ; which of parasitoids treated by beta-cypermethrin, acetamiprid, pyridaben, myclobutanil, pyrimethanil Cymoxanil-maneozeb were 25 % - 45 % ; Which of parasitoids treated by cyromazine, thiamethoxam, imidacloprid, flusilazole, difenoconazole, carbendazim, procymidone, dimethomorph, mancozeb were 〈 25 % ; The residual toxicity of these insecticides to adults after treatment 7 days had significantly difference. The survivor of adults in 48 h by cyromazine treatment was near to 90 %. Above 80 % live adults were observed in treatment with betacypermmethrin, acetamiprid, pyridaben and imidacloprid. Abamectin and thiamethoxam caused significantly higher mortality, the survivor rate was 41.67 % and 8.33 %, respectively. These fungicides did not produce a significant effect compared with water control.
出处
《华北农学报》
CSCD
北大核心
2009年第3期83-86,共4页
Acta Agriculturae Boreali-Sinica
基金
天津市自然科学基金项目(05YFJMJC07100)
天津市科技支撑计划重点项目(07ZCGYNC00800)
关键词
农药
美洲斑潜蝇
寄生蜂
敏感性
Pesticide
Liriomyza sativae Blanchard
Parasitoid
Susceptibility
