8种药剂对梅下毛瘿螨的毒力及防效评价  

Toxicity determination and efficacy evaluation of eight pesticides against the Acalitus phloeocoptes Nalepa

作　　者：齐平 阿地力·沙塔尔[1] 杨梦杰 吐依洪·努尔东 吾买尔江·巴拉提 QI Ping;Adil Sattar;YANG Mengjie;Tuyihong Nurdong;Wumairjiang Barati(College of Forestry and Landscape Architecture,Xinjiang Agricultural University,Urumqi 830052;Forestry and Grassland Bureau of Luntai County)

机构地区：[1]新疆农业大学林学与风景园林学院,乌鲁木齐830052 [2]轮台县林业和草原局

出　　处：《中国果树》2024年第10期124-127,136,共5页China Fruits

基　　金：2023年新疆维吾尔自治区林业发展补助资金(林草科技)项目“梅下毛瘿螨综合防控关键技术研究与示范”。

摘　　要：采用浸叶法对8种杀螨剂对梅下毛瘿螨进行室内毒力测定,采用喷雾法进行田间药效试验。8种杀螨剂对梅下毛瘿螨的毒力高低依次为:0.5%依维菌素乳油>22.4%螺虫乙酯悬浮剂>5%阿维菌素悬浮剂+30%乙唑螨腈悬浮剂>5%阿维菌素悬浮剂+30%腈吡螨酯悬浮剂>45%联肼·乙螨唑悬浮剂>20%双甲脒乳油>56%阿维·炔螨特微乳剂>24%虫螨腈微乳剂。其中,0.5%依维菌素乳油对梅下毛瘿螨成螨的毒力最强,24 h后LC_(50)为1.028 mg/L;24%虫螨腈微乳剂对梅下毛瘿螨成螨的毒力最弱,24 h后LC_(50)仅为16.001mg/L。选用毒力较强的5种杀螨剂在田间进行防效试验,22.4%螺虫乙酯悬浮剂防效最好,药后15 d防效达到82.67%,其次是0.5%依维菌素乳油,药后15 d防效达到82.00%。22.4%螺虫乙酯悬浮剂和0.5%依维菌素乳油对梅下毛瘿螨的防治效果较为理想,可在生产上推广轮换使用,减缓该瘿螨的抗药性。The toxicity of 8 kinds of acaricides against the Acalitus phloeocoptes Nalepa was tested in laboratory by leaf dipping method,and the field flicacy test was conducted by spray method.The toxicity of eight acaricides of the Acalitus phloeocoptes Nalepa is as follows:0.5%ivermectin emulsion>22.4%spirotetramat suspension>5%avermectin suspension+30%imidacloprid suspension>5%avermectin suspensiont 30%imidacloprid suspension>45%hydrazine and imidacloprid suspension>20%metformin emulsion>56%avermectin and imidacloprid microemulsion>24%imidacloprid microemulsion.Among them,0.5%ivermectin emulsion has the highest toxicity to adult mites of the Acalitus phloeocoptes Nalepa,with LC_(50)values of 1.028 mg/L after 24 h;The indoor toxicity of 24%imidacloprid microemulsion of the Acalitus phloeocoptes Nalepa is the lowest,with LC_(50)values of only 16.001 mg/L after 24 h.Among them,five highly toxic acaricides were selected for field efficacy trials.The 22.4%spirotetramat suspension had the best effect,with a control effect of 82.67%after 15 days of treatment,followed by a control effect of 82.00%after 15 days of treatment with 0.5%ivermectin emulsion.22.4%spirotetramat suspension and 0.5%ivermectin emulsifiable concentrate can be promoted for rotation in production to slow down the esistance of the Acalitus phloeocoptes Nalepa.

关 键 词：梅下毛瘿螨 药剂 室内毒力 田间药效 

分 类 号：S436.629[农业科学—农业昆虫与害虫防治]