20%丁氟螨酯悬浮剂对柑橘全爪螨的防效评价  

Control effect evaluation of 20% cyflumetofen suspension agent against Panonychus citri

作　　者：李伟群[1] 曾东强[1] 刘晓亮[1] 何宁祖[1] 贾道田[1] 贤振华[1] 

机构地区：[1]广西大学农学院,南宁530005

出　　处：《南方农业学报》2013年第2期240-243,共4页Journal of Southern Agriculture

基　　金：科技部科技服务企业专项项目(2009GJE10049)

摘　　要：【目的】明确20%丁氟螨酯悬浮剂对柑橘全爪螨的防治效果、使用技术及安全性,为柑橘全爪螨防治提供科学依据。【方法】设20%丁氟螨酯悬浮剂2500、2000、1500和1000倍液4个浓度处理,与两个常用化学药剂73%炔螨特乳油和240g/L螺螨酯悬浮剂推荐剂量及空白处理进行比较,药前调查虫口基数,药后3、7、15、30d调查防治效果,两年重复试验。【结果】20%丁氟螨酯悬浮剂1500～2000倍液处理,药后30d的防效为98.80%～100.00%,显著高于对照药剂73%炔螨特乳油2000倍液和240g/L螺螨酯悬浮剂4000倍液处理的防效,且对柑橘安全,对其他非标靶生物无不良影响。【结论】20%丁氟螨酯悬浮剂对柑橘全爪螨有很好的防效,建议在柑橘全爪螨发生高峰前期,田间全爪螨种群密度为5头/叶左右时施药,推荐使用浓度为1500～2000倍液。[Objective]The aim of this experiment was to explicit the control effect and application technique of cyflumetofen against Panonychus cirri, and its security for citrus, subsequently provide scientific references for P. citri prevention and treatment. [Method]Four different treatments of 20% eyflumetofen suspension agent （2500, 2000, 1500, 1000 dilution times） were prescribed to compare their effects with recommended levels of common chemical pesticides （73% Propargite missible oil ＆ 240 g/L Envidor suspension agent） and controls. Comparison parameters involved popula- tion cardinal number before pesticides and control effect after spraying 3, 7, 15, 30 d. Experiments were repeated for two years. [Result]The control effect of eyflumetofen 20% SC against P. citri was 98.80%-100.00% on the 30th day with the dilution times of 1500-2000, which was significant higher than that of control pesticides. Besides, cyflametolen was safe to citrus and had no negative impacts on other non target creatures. [Conclusion]Thanks to good control efiecl, cyflumetolen with the dilution times of 1500-2000 could be applied prior to peak time when the population density of P. cirri in ficht was five per leaf.

关 键 词：丁氟螨酯 柑橘全爪螨 施药时间 施药方法 防治效果 

分 类 号：S436.661.23[农业科学—农业昆虫与害虫防治]