摘要
板栗粉锈病是景宁板栗的主要叶部病害,发病率高达95%,感病指数达82 5。板栗粉锈病危害板栗苗木、幼树和成年树,感病栗树生长势显著下降,栗实减产,病叶提早落叶。病原为栗膨痂锈菌Pucciniastrumcastaneae。研究结果表明:在8月份喷洒15%粉锈宁可湿性粉剂500倍液,每周1次,连续2次,防治效果可达92 4%。
Pucciniastrum castaneae is main leave disease of Castanea mollissima in Jingning,the incidence of the disease being 95% and the index of disease being 825.Pucciniastrum castaneae seriously affects the seedlings,young trees and grownup trees.The diseaseeffected Castanea mollissima trees slow down growth and reduce output.The diseased leaves fall ahead of time.Pathogeny of the disease is Pucciniastrum castaneae.In August,applying 15% 500fold wettable powder of triadimefon,once a week for two times,the possibility of curing is 924%.
出处
《浙江林学院学报》
CSCD
北大核心
2003年第3期328-330,共3页
Journal of Zhejiang Forestry College
关键词
森林保护学
板栗
粉锈病
发生规律
药剂防治
forest protection science
Castanea mollissima
Pucciniastrum castaneae
rule of incidence
chemical control
