陕西关中地区苹果园苹果全爪螨对4种杀螨剂的抗药性评估  

Resistance Monitoring of Panonychus ulmi from Apple Orchards to Four Acaricides in Guanzhong

作　　者：张旭东[1] 武荣祥 赵奇[1] 苏小计 陈茂华[1] ZHANG Xu-dong WU Rong-xiang ZHAO Qi SU Xiao-ji CHEN Mao-hua(College of Plant Protection, Northwest A ~ F University, Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture, Yangling, Shaanxi 7121 00, China Plant Protection Station of Shaanxi Province, Xi＇an, Shaanxi 710003, China)

机构地区：[1]西北农林科技大学植物保护学院农业部西北黄土高原作物有害生物综合治理重点实验室,陕西杨陵712100 [2]陕西省植物保护工作总站,陕西西安710003

出　　处：《西北林学院学报》2017年第2期197-201,共5页Journal of Northwest Forestry University

基　　金：国家科技支撑计划课题(2012BAK11B03);陕西省植物保护总站害虫抗药性监测项目(4030216026)

摘　　要：为明确陕西省关中地区苹果园苹果全爪螨(Panonychus ulmi)田间种群对4种常见杀螨剂的抗药性现状,并指导该螨的田间药剂防治。采用玻片浸渍法,对采自陕西兴平、礼泉、淳化、扶风和凤翔5个地区苹果园苹果全爪螨田间种群进行毒力测定,并分析其相对抗性水平。结果表明,礼泉种群对阿维菌素和噻虫嗪LC_(50)值最低,分别为0.041mg·L^(-1)和58.578mg·L^(-1),凤翔种群对哒螨灵和三唑锡LC_(50)值最低,分别为11.202mg·L^(-1)和96.181mg·L^(-1);各田间种群对阿维菌素的相对抗性倍数为1.11~1.88倍,对哒螨灵的相对抗性倍数为1.36~3.61倍,对噻虫嗪的相对抗性倍数为1.11~3.14倍,对三唑锡的相对抗性倍数为1.84~2.43倍。总之,不同地区苹果全爪螨田间种群对药剂抗性水平不同,兴平种群对哒螨灵和凤翔种群对噻虫嗪的致死中浓度明显高于其他4个地区,田间实际防治过程中应根据各地实际情况有针对性地进行用药。The aims of this study were to investigate the resistance levels of the field populations of Panony- chus ulmi （Koch） collected from the apple orchards in Guanzhong （central area of Shaanxi Province, China） to four kinds of acaricides, and to provide guidance for chemical control of P. ulmi. The slide-dip method was used to test the toxicity, the apple orchards were located in Xingping, Liquan, Chunhua,Fufeng and and Fengxiang. The P. ulmi population from Liquan showed the lowest LC50to abamectin （0. 041 mg· L-1） and thiamethoxam （58. 578 mg· L-1） ,and the population from Fengxiang showed the lowest LC50 to pyr- idaben （11. 202 mg · L -1） and azocyclotin （96. 181 mg· L-1）. The field populations of P. ulmi had differ- ent relative resistance to different acaricides,with the relative resistance ratios of 1.11-1.88 to abmectin, 1.36-3.61 to pyridaben,1.11- 3.14 to thiamethoxam,and 1.84-2.43 to azocyclotin. In a word,the rela- tive resistance levels to four acaricides Varied within populations of P. ulmi from different locations. Xing- ping population showed the highest LC50 value to pyridaben,and Fengxiang population showed the highest LC50 value to thiamethoxam. Our results suggested that the application of acaricides should he varied signif- icantly with the populations of P. ulrni from different locations.

关 键 词：苹果全爪螨 毒力测定 抗药性监测 苹果园 

分 类 号：S436.611[农业科学—农业昆虫与害虫防治]