常用杀虫剂对洋白蜡2种蛀干害虫的生物活性测定及田间药效评价  

Bioactivity and field efficacy of frequently used insecticides against two wood-born pests of Fraxinus pennsylvanica

作　　者：车少臣 仇兰芬 王宇欣 胡阳 李广 刘倩 李娜 夏菲 仲丽 CHE Shaochen;QIU Lanfen;WANG Yuxin;HU Yang;LI Guang;LIU Qian;LI Na;XIA Fei;ZHONG Li(Beijing Key Laboratory of Ecological Function Assessment and Regulation Technology of Green Space,Beijing Academy of Forestry and Landscape Architecture,Beijing 100102,China;Institute of Life Sciences and Green Development,School of Life Sciences,Hebei University,Baoding 071002,Hebei,China;Forest Protection Station of Tongzhou District,Beijing 101100,China)

机构地区：[1]北京市园林绿化科学研究院园林绿地生态功能评价与调控技术北京市重点实验室,北京100102 [2]河北大学生命科学学院生命科学与绿色发展研究院,河北保定071002 [3]北京市通州区林业保护站,北京101100

出　　处：《农药》2024年第6期459-463,共5页Agrochemicals

基　　金：园林绿地生态功能评价与调控技术北京市重点实验室开放课题(STZD202402)。

摘　　要：[目的]筛选高效、低毒、低残留的杀虫剂,以有效防治洋白蜡树的主要蛀干害虫小线角木蠹蛾和白蜡窄吉丁。[方法]分别选择浸虫法和浸叶法对小线角木蠹蛾幼虫和白蜡窄吉丁成虫进行室内生物活性测定,并对小线角木蠹蛾用树干注药法进行田间药效试验。[结果]阿维菌素对小线角木蠹蛾10龄幼虫的室内生物活性最高,24 h致死中浓度(LC50)为16.06 mg/L,氯虫苯甲酰胺对其活性最低。对于白蜡窄吉丁成虫,阿维菌素的室内生物活性最高,24 h LC_(50)为36.53 mg/L,啶虫脒活性最低。田间药后10 d,10%啶虫脒微乳剂(800、1600 mg/L)、2%甲氨基阿维菌素苯甲酸盐微乳剂(40、160 mg/L)、100 g/L溴虫氟苯双酰胺悬浮剂(2000、4000 mg/L)和1.8%阿维菌素乳油(28.8、57.6 mg/L)对小线角木蠹蛾幼虫的防治效果最好,防效均达到90%以上。[结论]啶虫脒、甲氨基阿维菌素苯甲酸盐和阿维菌素可用于防治小线角木蠹蛾幼虫,阿维菌素、噻虫啉、甲氨基阿维菌素苯甲酸盐室内对白蜡窄吉丁成虫具有较好活性。[Aims]The aim of this study is to screen efficient insecticides with low toxicity and low residue to effectively control the main stem borer Streltzovela insularis and Agrilus planipennis in green ash(Fraxinus pennsylvanica).[Methods]We selected the insect soaking method and leaf soaking method to determine the laboratory biological activity of S.insularis larvae and A.planipennis adults respectively,and conducted field efficacy trials against S.insularis using trunk injection method.[Results]Abamectin had the highest biological activity to the 10th instar larvae of S.insularis,with a medium lethal concentration(LC_(50))of 16.06 mg/L at 24 h,while chlorantraniliprole had the lowest toxicity to the larvae of S.insularis.For the adults of A.planipennis,abamectin had the highest biological activity with a(24 h)LC_(50) of 36.53 mg/L,while acetamiprid had the lowest activity.Acetamiprid 10%ME at 800 and 1600 mg/L,emamectin benzoate 2%ME at 40 and 160 mg/L,broflanilide 100 g/L SC at 2000 and 4000 mg/L,and abamectin 1.8%EC at 28.8 and 57.6 mg/L had excellent control effect on the larvae of S.insularis in fields,with control efficiency all above 95%.[Conclusions]Acetamiprid,emamectin benzoate or abamectin can be used to control the larvae of S.insularis,while abamectin and emamectin benzoate have good activity in laboratory against the adults of A.planipennis.

关 键 词：洋白蜡 杀虫剂 生物活性测定 田间防效 小线角木蠹蛾 白蜡窄吉丁 

分 类 号：S482.3[农业科学—农药学]