华山松大小蠹危害流脂特征及变化规律研究  

Characteristics and Variation of Resin Flux Caused by Dertdroctonus armandi

作　　者：刘锁成 彭岚[2] 王三省[2] 蔡宗科 

机构地区：[1]宝鸡市辛家山林业局,陕西宝鸡721001 [2]宝鸡市林业工作中心站,陕西宝鸡721001

出　　处：《陕西林业科技》2008年第3期55-58,共4页Shaanxi Forest Science and Technology

摘　　要：通过研究可以看出,华山松流脂流脂点分布的时段特征明显,以6月份流脂时段最长,9月中下旬时段次之,10月下旬时段最短;新流脂株全部出现在9月中下旬和10月下旬二个时段;6月上中下三旬流脂时段的后二年度复侵率连续为100%,新侵株为0;9月中下旬和10月下旬时段的流脂特征全部为堆形,而6各旬的流脂特征为堆状、泪腊状和白浆状。10月下旬和9月中下旬时段出现的流脂点均分布在单株的下区和中下区现象。Resin flux of Pinus armandi is characterized with longest time period in June, followed by the period late September and late October. Trees with new resin flux appear also in late September and October. During the three periods of early, middle and late June with resin flux, the trees were 100% re--infested for the last two years, non for new trees. The resin flux in late September and late October were in the shape of triangle, while in the shape of triangle, tear drop or pulpy. Resin flux in late September and late October were distributed evenly in the lower part or middle to lower part of the tree.

关 键 词：华山松大小蠢 流脂特征 变化规律 

分 类 号：S791.241.07[农业科学—林木遗传育种]