落叶松枯梢病发生规律及防治技术

Occurring regularity and control technique of larch shoot blight

落叶松枯梢病Ｇｕｉｇｎａｒｄｉａｌａｒｉｃｉｎａ（Ｓａｗａｄａ）ＹａｍａｍｏｔｏｅｔＫ．Ｉｔｏ是我国北方落叶松人工林危害严重的病害。其发生与地形地势、风、树冠垂直高度、林分因子有关。加强检疫，适地适树造林，适时化防，把防治技术贯穿于造林、管理全过程的防治措施是有效的。

Larch shoot blight caused by Guignardia Laricina is a serious kind of disease in larch plantation in north China .Its occurence is relative to topography,relief,wind,vertical crown height and stand type.The effective integrated control measurement,includes carrying out quarantine,forestation suited to local condition,spraying fungicide in right time.