摘要
猕猴桃溃疡病是由丁香假单胞菌猕猴桃致病变种(Pseudomonas syringae pv.actinidiae,Psa)引起的细菌性病害,严重影响猕猴桃产业发展。明确猕猴桃溃疡病在田间的传播对其防治具有重要意义。本研究于2020年4月16—22日和2021年3月24—30日,在湖北省赤壁市调查了半岛南猕猴桃种植园区内猕猴桃溃疡病的发病情况,通过孢子捕捉器在猕猴桃园区的不同地势(坡度为10°、30°和45°的区域)和不同天气环境下进行24 h连续病原捕集,并据猕猴桃叶片上溃疡病显症所需时长反映不同地势和天气环境对病害传播的影响。结果表明,在坡度10°区域进行病原捕集的猕猴桃叶片显症所需时间比坡度30°和45°区域晚1~2 d。雨天在孢子捕捉器内的叶片上显症所需时长仅需7 d,而晴天显症时长则需10~12 d。明确了露地栽培猕猴桃园区坡度和雨天显著促进了猕猴桃溃疡病的传播。对猕猴桃溃疡病防治技术制订和实施有一定意义。
Kiwi canker is a bacterial disease caused by Pseudomonas syringae pv.actinidiae(Psa),which seriously affects the development of kiwifruit industry.Determination of disease spread in fields is of great significance for management of the disease.We investigated the incidence of the disease in Bandaonan kiwifruit orchard in Chibi City,Hubei Province from April 16 to 22,2020 and from March 24 to 30,2021.Pathogen traps were used for 24-hour continuous pathogen capture at different terrain areas with slopes of 10°,30°and 45°in kiwifruit garden in raining and sunny days.Days necessary for kiwi healthy leaves placed inside the traps to show symptoms were used to indicate the spread of the disease.Results showed that the period needed for the leaves to show symptoms at 10°slope area was 1-2 days shorter than that in the 30°and 45°slope areas.Days required for the disease symptom to appear were 7 in raining days,while that was 10 to 12 in sunny weather.We therefore concluded that field slope and raining days could speed up the spread of kiwi canker disease in kiwifruit orchard significantly.The above results are of significance in management of the disease.
作者
汪华
邓思怡
刘军
常威
程杰元
陈琦
喻大昭
WANG Hua;DENG Siyi;LIU Jun;CHANG Wei;CHENG Jieyuan;CHEN Qi;YU Dazhao(Institute of Plant Protection and Soil Fertilizer,Hubei Academy of Agricultural Sciences,Wuhan 430064,China;Key Laboratory of Integrated Pest Management of Crops in Central China,Wuhan 430064,China;Agricultural Technology Promotion Center of Xishui in Hubei Province,Xishui 438200,China;Chibi Shenshan Xingnong Technology Co.,Ltd,Chibi 437300,China)
出处
《中国生物防治学报》
CSCD
北大核心
2022年第4期939-944,共6页
Chinese Journal of Biological Control
基金
主要经济作物重要及新成灾病害绿色综合防控技术(2019YFD1002000)
湖北省山区主要蔬菜重要有害生物绿色防控技术构建及物化产品研发(202062000000207)
道地药材安全高效生产关键技术研究与示范(2021BBA075)
作者简介
共同第一作者/通信作者:汪华(1978-),男,硕士,副研究员,E-mail:wanghua4@163.com;共同第一作者:邓思怡(1997-),女,硕士,研究助理,E-mail:dengsiyi9966@163.com;通信作者:喻大昭,博士,研究员,E-mail:Dazhaoyu@china.com。
