【摘要】 纵坑切梢小蠹和横坑切梢小蠹是中国主要的森林蛀干害虫。在云南,两虫经常在云南松等松类树种上共同危害,造成重大生态和经济损失。这两种小蠹的种群结构因地区而异,其性比、成虫在枝梢上聚集危害的时间及其在树冠上的空间分布规律基本相同,但在树干上的空间分布规律有很大差异。通过研究并比较这两种小蠹的种群结构、性比、季节分布及空间分布等生态学特性差异,对防治有重要意义。更多还原

【Abstract】 Tomicus piniperda and T.minor are two major tree stem borers in China.In Yunnan province,these two kinds of pests commonly damage the trees of Pinus species and cause serious ecological and economic loss.The population structure of these two pests varies with different regions.The proportion of sex,the time of adults accumulated at shoots and the spatial distribution of pests in crown are similar. However,the spatial distribution of two stem borers was very different.Study and compare the population,sex proportion,seasonal distribution and spatial distribution of these two pests are very important for the pest control.更多还原