商洛市核桃主要干部病害防治试验  

Experiment with the Main Stem Disease Control of Walnut

作　　者：张治有 陶晓荣 胡刁 张敏[3] ZHANG Zhi-you;TAO Xiao-rong;HU Diao;ZHANG Min(Shangluo Forestry Research Institute, Shangluo, Shaanxi 726000;Shangluo Nature Reserve Service Center, Shangluo, Shaanxi 726000;Shangluo Vocational and Technical College Shangluo, Shaanxi 726000)

机构地区：[1]商洛市林业科学研究所 [2]商洛市自然保护地服务中心 [3]商洛职业技术学院,陕西商洛726000

出　　处：《陕西林业科技》2021年第4期70-74,共5页Shaanxi Forest Science and Technology

基　　金：中央财政林业科技推广示范项目(SLTG[2021]11号);陕西省农业协同创新与推广联盟2020年示范推广项目(LM202007);核桃产业国家创新联盟(NAWI)资助项目。

摘　　要：针对商洛市采用清理病斑、涂抹杀菌药物等方法防治核桃干部常见病害溃疡病(Dothiorellla gregaria)、膏药病(Helicobasidium sp.)、腐烂病(Cytospora juglandis),操作复杂、费时费工、成本高等问题,选择4处有代表性的示范园,进行了核桃树干涂抹石硫合剂、林木长效保护剂、涂白剂防治对比试验,结果为与对照即常规不处理相比,3个处理防治溃疡病、膏药病、腐烂病效果都显著,溃疡病感病率降低26.1%~85.4%、感病指数降低30.2%~87.5%,膏药病感病率降低20.3%~88.8%、感病指数降低36.7%~89.8%,腐烂病感病率降低16.7%~76.7%、感病指数降低33.5%~87.9%;林木长效保护剂处理效果最好,涂白剂相对最差,石硫合剂居中,建议优先选用长效杀菌缓释保护剂,其次选石硫合剂。Four walnut demonstration gardens in different areas of Shangluo were used as research zone to carry out a comparative experiment with lime and sulfur mixture,forest long-term protective agent and whitening agent for control of stem disease.The results showed that three treatments were all significant in control of canker,plaster disease and rot disease.The infection with canker disease(Dothiorellla gregaria)was reduced by 26.1%~85.4%and infection index declined by 30.2%~87.5%;the infection with plaster disease(Helicobasidium sp.)was reduce by 20.3%~88.8%and infection index declined by 36.7%~89.8%;and the infection with rot disease(Cytospora juglandis)was reduced by 16.7%~76.7%and infection index declined by 33.5%~87.9%.The long-term protective agent was most effective in controlling these diseases,followed by lime and sulfur mixture.

关 键 词：核桃 干部病害 涂干 防治 商洛 

分 类 号：S763.1[农业科学—森林保护学]