3种杀菌剂及1种生防菌对柑橘黄龙病的防治效果  

Control Effect of Three Fungicides and One Biocontrol Bacteria on Citrus Huanglongbing

作　　者：韩仕祺 孙梓翔 黎静 唐涛[2] 赵明平 邱发进 易图永 HAN Shi-qi;SUN Zi-xiang;LI Jing;TANG Tao;ZHAO Ming-ping;QIU Fa-jin;YI Tu-yong(College of Plant Protection,Hunan Agricultural University,Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests,Changsha 410128,PRC;Hunan Institute of Plant Protection,Hunan Academy of Agricultural Sciences,Changsha 410125,PRC;Jianghua County Agriculture and Rural Bureau,Yongzhou 425500,PRC)

机构地区：[1]湖南农业大学植物保护学院,植物病虫害生物学与防控湖南省重点实验室,湖南长沙410128 [2]湖南省农业科学院,湖南省植物保护研究所,湖南长沙410125 [3]江华县农业农村局,湖南永州425500

出　　处：《湖南农业科学》2024年第11期55-59,共5页Hunan Agricultural Sciences

基　　金：湖南省重点研发计划(2022NK2052);国家重点研发计划(2021YFD1400800);湖南省水果产业技术体系(HARS-09)。

摘　　要：柑橘黄龙病是柑橘产业中最具毁灭性的病害,通过田间小区试验,评估了叶面喷施和灌根施用聚六亚甲基胍盐酸(PHMG)、2,2-二溴-3-次氮基丙酰胺(DBNPA)、0.2%抑菌性可溶性多糖(NK)和枯草芽孢杆菌M23菌株对柑橘黄龙病的防治效果。结果表明:在黄龙病初侵染时,使用PHMG或DBNPA进行叶面喷施处理可有效抑制其病情的发展;在黄龙病侵染后期,使用DBNPA、NK或M23灌根处理可有效降低感病植株的病情级别,并减少柑橘叶片内亚洲韧皮部杆菌(CLas)的浓度。研究结果为柑橘黄龙病的田间防控提供了可供选择的新药剂。Citrus Huanglongbing is the most devastating disease in the citrus industry.In this study,a field plot experiment was conducted to evaluate the control effects of leaf spraying and root irrigation with polyhexamethylene guanidine(PHMG),2,2-dibromo-3-nitrilopropionamide(DBNPA),0.2%bacteriostatic soluble polysaccharide(NK),and Bacillus subtilis M23 on citrus Huanglongbing.The results show that leaf spraying with PHMG or DBNPA can effectively inhibit the development of the disease during the early stage of Huanglongbing.At the later stage of Huanglongbing,root irrigation treatments with DBNPA,NK,or M23 are effective in reducing the disease level of susceptible plants and the concentration of Candidatus Liberibacter asiaticus(CLas)in citrus leaves.The results provide a new drug for field control of citrus Huanglongbing.

关 键 词：柑橘黄龙病 防治效果 化学防控 生防菌 

分 类 号：S482.2[农业科学—农药学]