几种药剂对大叶黄杨白粉病的防治效果.pdfVIP

2007, 35(4) : 92~ 93 Guizhou Agricultural Sciences [ ] 2007) 040266009202 几种药剂对大叶黄杨白粉病的防治效果 1 2 1 1 1 刘起丽 , 张建新, 王洪亮 , 狄向军 , 李保彪 ( 1. , 453003; 2. , 453007) [ ] 近年来豫北地区大叶黄杨白粉病危害日益严重, 为筛选出防治大叶黄杨白粉病的有效药剂 用 5 种常用杀 菌剂对大叶黄杨白粉病病原菌进行室内孢子萌发试验和田间防效试验结果表明, 培养24h 后, 退菌特室内对孢子萌发的抑 制作用最佳, 达99. 3% , 其次是百菌清, 达 97. 8% ; 百菌清和退菌特在田间对白粉病的防治效果也较好, 防治效果达 85% 以 上, 可作为防治大叶黄杨白粉病的首选药剂 [ ] 大叶黄杨白粉病; 药剂; 防治效果 [ ] S792. 115; S763. 15 [ ] A Cont rol Effects of Several Fungicides on Powdery Mildew of Euonymus ja onicus L. 1 2 1 1 1 LIU Q ili , ZHAN G Jianxin , WANG H ongliang , DI Xiangjun , LI Baobiao ( 1. Department of Plant Protection, HenanCollegeof Scienceand Technology, Xinxiang, Henan 453003; 2. Collegeof Lif e Sciences, HenanNormal niversity, Xinxiang, Henan 453007, China) Abstract : Five fungicides were used in the tests of s ore germination in door and control effect in field to select the effective fungicides for control ow dery mildew of E uony m us j ap o nic us L. . T he results showed t hat the effect of inhibiting s ore germination of Tuzet and Chlorthalonil was 99. 3% and 97. 8% after 24 h culture res ectively , and their effect of cont rolling ow dery mildew was over 85% in fields. Therefore, T uzet and Chlorthalonil are t he o timum fungicides in cont rolling ow dery mildew of E uony mus j ap on ic us . Key words: owdery mildew of E uony m us j ap onic us ; fungicide control effect ( E uony m us j ap oni cus L. ) , , ( ) , , 1. 2 , 1. 2. 1 药剂对分生孢子萌发的抑制作用 6 , , : 75% 600 , 50% , 800 ,