流动沙漠腹地梭梭白粉病防治效果及影响因素分析  

Control Efficiency to Powdery Mildew on Haloxylon in the Hinterland of Drift Desert

作　　者：靳正忠[1] 郭永平[1] 李生宇[1] 徐新文[1] 赵思峰[2] 

机构地区：[1]中国科学院新疆生态与地理研究所,新疆乌鲁木齐830011 [2]石河子大学农学院,新疆石河子832003

出　　处：《西北林学院学报》2011年第2期124-128,共5页Journal of Northwest Forestry University

基　　金：中国科学院西部博士专项(XBBS200905);国家自然科学基金重点项目(41030530);新疆维吾尔自治区自然科学基金项目(200821163);塔里木油田公司科研项目(971008090016)

摘　　要：通过野外试验,分析了3种常见农药对塔中肉苁蓉基地梭梭白粉病的防治效果和影响因素。结果表明:农抗120防治梭梭白粉病比较有效,三唑酮较差。其中三唑酮的防治效果随浓度增大而增强,而农抗120和甲基托布津的防效与浓度无线性关系。浓度为1.66 mL.L-1的农抗120和甲基托布津对塔中梭梭白粉病的防治效果最好。同时,梭梭茎和叶、土壤含水量大时白粉病病情较重,二者密切相关(R>0.96),生产上应在梭梭发病期控制灌水,适当减少土壤含水量。By field experiment,control efficiency of three kinds of common pesticides to powdery mildew on Haloxylon and their influencing factors in Tazhong were analyzed.The results showed that pestiside ＂Nongkang 120＂ was more efficient,and ＂Triadimefon＂ had the poorest control efficiency,in which the control efficiency increased with the concentration.No linear concentration correlations were found for Nongkang 120 and Thiophanate methyl.The best control results were achieved by applying Nongkang 120 and Thiophanate methyl with the concentration of 6 mL·L-1.Severer infections were found in those with higher water contents in the soil and plant,the infection was closed related to water content（R0.96）,indicating that water supply controled.

关 键 词：梭梭 白粉病 防治效果 农药 

分 类 号：S763.05[农业科学—森林保护学]