摘要
[目的]筛选出烤烟野火病和角斑病的高效防治药剂.[方法]采用小区试验研究农用链霉素、波尔多液、氢氧化铜、80％必备波尔多液、80％中烟波尔多液、自配波尔多液药剂对山东临朐烤烟野火病和角斑病的防治效果.[结果]在团棵期、旺长期、打顶前各喷施1次自制波尔多液预防,连喷3次,硫酸铜、生石灰和水配比为1∶1∶150,预防效果较好.移栽后团棵期、旺长期及烟株封顶期各喷施1次72％农用链霉素、噻茵铜、波尔多液,这几种药剂交替使用可减缓抗药性.[结论]建立了山东临朐烤烟野火病和角斑病的配套防控技术,为进一步预防野火病、角斑病的发生及科学防治提供了理论依据.
Abstract
[Objective] The aim was to screen out efficiens medicament for preventing and controlling tobacco wildfire disease and angular leaf spot disease.[Method] Through plot experiment,the control effects of applying streptomycin,bordeaux,cupric hydroxide,80％ essential bordeaux,80％ Zhongyan bordeaux,self-proportioning bordeaux on tobacco wildfire disease and angular leaf spot disease in Linqu,Shandong were studied.[Result] Spraying self-proportioning bordeaux for three times in rosette stage,vigorous growth stage and before topping with ratio of copper sulfate,lime and water as 1∶1∶ 150,the prevention effect was good.Spraying 72％ streptomycin,thiodiazole-copper,bordeaux for each time in rosette stage,vigorous growth stage and tobacco cap stage,the alternate use of these drugs could slow the resistance.[Conclusion] The established technology provides theoretical basis for further prevention and scientific control of tobacco wildfire disease and angular leaf spot disease.
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