马栏林场红脂大小蠹危害与防治  

Harm and Control of the Dendroctonus valens LeConte in Malan Forestry Farm

作　　者：张文龙 刘高潮 

机构地区：[1]旬邑县马栏林场,陕西旬邑711301

出　　处：《陕西林业科技》2014年第3期103-108,共6页Shaanxi Forest Science and Technology

摘　　要：采用定点观测和标准样地调查方法,研究了马栏林区红脂大小蠢（Dendroctonus valens LeConte）生物学特性和危害规律.红脂大小蠢在子午岭南段的马栏林区1a发生1代,以成虫越冬.主要为害胸径10～30 cm的油松,海拔1 300～1 600 m油松林被害严重,林地不同部位之间受害程度沟谷底部、山脊＞林缘＞林内;山顶＞半阳坡＞阴坡.采用树干塑料密封薄膜磷化铝熏蒸、树干注射40％氧化乐果乳油、40％敌敌畏乳油都可达到85％以上防治效果.Dendroctonus valens was studied by the method of fixed-point observation and standard sample in terms of its biological characteristics and attacking rules. Dendroctonus valens occurred 1 generation in one year in Ziwuling Southern Malan Forest Area overwinter in adult. It mainly attacks Pinus tabulaeformis with diameters ranging from 10cm to 30cm, elevation from 1 300 m to 1 600 m. Damage varied with the positions of slope in the order： bottom or ridge〉forest margin〉within forest or top of hills）semi-sunny slope）shadow slope. The trunk plastic film plus aluminium phosphide fumigation, trunk injection of 40% Omethoate EC, and 40; DDVP can all produce the effect of control.

关 键 词：马栏林场 油松 红脂大小蠹 危害 防治 

分 类 号：S763.3[农业科学—森林保护学]