我省南充、江津、宜宾、涪陵等地区拔海千米以下的马尾松林,常遭松梢害虫(俗名钻心虫、松梢蟆)严重为害。植株嫩梢,特别是中央主梢(顶梢)受害后,大量枯黄下垂,以后又在枯倒枝上发出成丛萌芽梢,造成主杆分叉,成林不成材。这种虫害,一直是我省马尾松松林的“老、大、难”问题之一。 Our province Nanchong, Jiangjin, Yibin, Fuling and other areas pulling the sea below the kilometers of Masson pine forests, often by pine tip pests (common name bore worms, pine needles) serious damage. Plant shoots, especially the central main shoot (top shoot) after the victims, a large number of brown sagging, and later on the branches pour out into buds sprouting buds, resulting in the main pole bifurcation, forest is not a timber. This pest has been one of the “old, big and hard” problems in Masson pine forests in our province.