9种杀螨剂对朱砂叶螨不同发育阶段的室内毒力测定

中国农学通报 ›› 2009, Vol. 25 ›› Issue (23): 375-379.

9种杀螨剂对朱砂叶螨不同发育阶段的室内毒力测定

马惠

收稿日期:2009-05-12 修回日期:2009-08-31 出版日期:2009-12-05 发布日期:2009-12-05

Toxicities of nine acaricides to Tetranychus cinnabarinus of different developmental stages

Received:2009-05-12 Revised:2009-08-31 Online:2009-12-05 Published:2009-12-05

摘要/Abstract

摘要： 室内采用FAO推荐的玻片浸渍法和叶碟法分别测定了9种杀螨剂对朱砂叶螨雌成螨和卵的毒力。结果表明，杀螨活性最高的是阿维菌素，其次是溴虫腈，卡死克、噻螨酮、哒螨灵、三唑锡也具有较好的杀螨效果，炔螨特的杀螨效果较差，甲氰菊酯和氧化乐果的杀螨效果最差；阿维菌素对朱砂叶螨卵的毒力最高，毒力次之的是噻螨酮、哒螨灵、溴虫腈、三唑锡和卡死克，甲氰菊酯、炔螨特和氧化乐果对卵的毒力最差。另外，对朱砂叶螨雌成螨和卵毒力相差最大的是噻螨酮和哒螨灵，毒力分别相差150.27和134.28倍；其次为三唑锡，相差69.80倍；溴虫腈、卡死克、阿维菌素、氧化乐果、甲氰菊酯、炔螨特对卵和雌成螨的毒力差别相对较小。

关键词: 白芦笋, 白芦笋, 花药培养, 愈伤组织, 绿芽

Abstract: Toxicities of nine acaricides to adult females and eggs of Tetranychus cinnabarinus were evaluated in laboratory using slide-dip method and leaf dip method recommende FAO respectively. The results indicated that avermectin was the highest toxicities to adults and the LC50 was 0.058 mg?L-1.The LC50 was 5.72 mg?L-1 of chlorfenapyr with higher toxities to adults. The LC50 of flufenoxuron, hexythiazox, pyridaben and azocyclotin were 12.43-67.01 mg?L-1, showed good toxicities to adults. The propargite showed the normal toxicities to adults, however, the fenpropathrin and omethoate showed the worst toxicities to adults. The results also showed that the toxicies to eggs from high to low in turn were as following: avermectin, hexythiazox, pyridaben, chlorfenapyr, azocyclotin, flufenoxuron, fenpropathrin, propargite and omethoate. The difference of toxicities between eggs and adults were also studied and the results showed that, the hexythiazox and pyridaben showed the highest difference with 150.27- and 134.28-folds respectively, secondly for azocyclotin with 69.80-folds, other acricides had the relatively small difference with 1.44- to 15.89-folds.

马惠. 9种杀螨剂对朱砂叶螨不同发育阶段的室内毒力测定[J]. 中国农学通报, 2009, 25(23): 375-379.

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