香蕉黑星病病情消长调查初报  

Preliminary Investigation on Occurrence Dynamics of Freckle Disease of Banana

作　　者：张欣 曾凡云 谢艺贤[1] 彭军[1] 漆艳香[1] ZHANG Xin;ZENG Fanyun;XIE Yixian;PENG Jun;QI Yanxiang(Environment and Plant Protection Institute,Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Pests Detection and Control for Tropical Agriculture of Hainan Province,Haikou 571101,Hainan)

机构地区：[1]中国热带农业科学院环境与植物保护研究所/海南省热带农业有害生物检测监控重点实验室,海南海口571101

出　　处：《中国热带农业》2022年第6期65-69,共5页China Tropical Agriculture

基　　金：海南省自然科学基金(322MS114);财政部和农业农村部:现代农业产业技术体系建设专项(CARS-31)。

摘　　要：为了解澄迈地区香蕉黑星病发生特点,以澄迈县松涛水库灌区主栽香蕉品种‘宝岛蕉’为研究对象,采用定点定期方式,于2017—2020年间对该病害的田间消长动态进行了系统调查。结果表明,香蕉黑星病周年均可发生,季节流行曲线呈近“S”型,在1个生长季内的温暖多雨的9—11月及翌年高温多雨的5—8月,病情指数随香蕉生育期推移呈上升趋势,并分别于11月、翌年8月达峰值,其中8月峰值最大;其余月份温度、湿度相对较低,病害趋于平缓,呈波浪形。香蕉黑星病田间病情消长与湿度密切相关,温度次之,雨季尤其5—8月是香蕉黑星病的盛发期。此外,冬季及春夏之交持续阴雨或大雾也是病害加重的因素。To clarify the occurrence dynamics of freckle disease of banana in Chengmai area,the main banana cultivar'Baodao banana'in the Songtao Reservoir Irrigation Area of Chengmai County was selected as experiment object,and the dynamics of field growth and decline of the disease was systematically investigated in a fixed location and regular manner from 2017 to 2020.The results showed that freckle disease of banana occurred in the whole year with seasonal epidemic curve showing as nearly"S"shape.The disease index increased along the growth stage of banana from September to November when it was warm and rainy and from May to August of the next year when it was hot and rainy in a growing season,and reached the peak in November and August of the next year,with the highest peak appeared in August.In other months with relatively low temperature and humidity,the disease index in general tended to be gentle and wavelike.The occurrence dynamics of freckle disease of banana had close correlation with humidity,followed by temperature.The disease occurred seriously in rainy season,especially from May to August.In addition,continuous drizzle or heavy fog in winter and at the turn of spring and summer was the cause that aggravated the disease.

关 键 词：香蕉 黑星病 流行动态 澄迈 

分 类 号：S436.68[农业科学—农业昆虫与害虫防治]