火炬松芽流脂病发生历期初探  

Inquiry into Bud Resinoses Occurrence of Pinus taeda

作　　者：陈雁 翁永发 王琼瑜 汪国华 严万康 

机构地区：[1]浙江省衢县森防站,衢县324000 [2]衢州市森防站 [3]浙江省森检站 [4]龙游县森防站

出　　处：《浙江林业科技》1997年第6期25-28,共4页Journal of Zhejiang Forestry Science and Technology

摘　　要：火炬松芽流脂病在我省许多地区都有不同程度发生，发病率一般在10％－30％左右，据1995年在衢县、龙游等地调查，部分林地株发病率可高达50％以上；罹病植株技梢丛生，植株矮化，严重影响火炬松在我省的发展。研究表明，火炬松芽流脂病于春芽萌动后一星期左右出现流脂，5月下旬起发病速度加快，随流脂增多，嫩芽也出现枯死，流脂后期（8月上旬）开始出现梢枯，以后逐渐增多，11～12月为发病高峰期，病梢率最高可达42％。Bud resinoses of Pinus taeda occurred in Zhejiang Province in varying degree, diseaseincidence was normally 10%-30%. Investigations in Quxian, Longyou counties of ZhejiangProvince in 1995 showed that disease incidence of Single plant in some stands topped over 50%,diseased tree had branches overgrown, dwarfed plant, which influenced seriousely developmentof P taeda in Zhejiang province. Studies demonstratal that bud resinoses of P taeda occurredabout one week after germination of spring bud, from the end of May, the disease incidencequickened. Along with resinoas, tender bud withered. At the later period of resinoses(beginning of August) the top began withered gradually. Novether and December was thePeak stage of the disease, diseased top topped 42%.

关 键 词：火炬松 流脂病 发生历期 

分 类 号：S763.712.5[农业科学—森林保护学]