马褂木褐斑病发生规律的初步研究  

Occurrence regularity of the brown spot disease on Liriodendron chinensis

作　　者：王记祥[1] 马良进[2] 张立钦[2] 毛胜凤[2] 温攀龙 

机构地区：[1]浙江农林大学天目学院,浙江诸暨311800 [2]浙江农林大学林业与生物技术学院,浙江临安311300

出　　处：《中国森林病虫》2014年第3期22-23,共2页Forest Pest and Disease

基　　金：大学生科技创新活动计划项目(TMKC1301)

摘　　要：通过调查研究,摸清了马褂木褐斑病的侵染循环规律。4月上旬病原菌Physoderma sp.的游动孢子萌发后从新叶背面侵入,潜育期20 d,4下旬叶背出现病状,6月下旬再次侵染。11月下旬病原菌以休眠孢子囊在落叶或土壤中越冬。病原菌处于越冬状态时采取清除落叶和深翻土壤等措施可以减轻病害的发生。The zoospores of the pathogen of brown spot disease on Liriodendron chinensis, Physoderma sp. , germinate and infect the leaf-back in early April, the incubation period is 20 d, the symptom appears in late April, the reinfection begin in late June. The pathogen overwinters in late November as resting sporengium in the soil or fallen leaves. The disease can be alleviated by means of clearing fallen leaves or plowing deeply when the pathogen overwinters.

关 键 词：马褂木 褐斑病 发生规律 防治 

分 类 号：S763.15[农业科学—森林保护学]