论文部分内容阅读
落叶松球蚜红杉亚种Adeiges laricis potaninilaricia zhang属,球蚜科,球蚜属落叶松球蚜的一个新亚种.在四川盆地西缘山地,海拔2,000—3,800米的人工更新红杉林内普遍发生危害.此球蚜的第一寄主为鳞皮云杉、云杉,第二寄主为红杉和四川红杉;主要为害第二寄主.若虫群集枝条、嫩芽,叶柄和叶面上,吸食汁液,并分泌蜜露引起枝叶煤烟病的发生,小枝枯萎,树势衰弱,受害严重的红杉林年高生长量降低40—70%.
A new sub-species of the family Aphididae, Aphididae, Gloeosporium aphid, is a new subspecies of the larch aphid Adelaide laricis potaninilaricia zhang, a species commonly found in artificially updated Sequoia forests in the western margin of the Sichuan Basin, 2,000-3,800 meters above sea level The main host of this aphid is squamous spruce, spruce, the second host is redwood and sequoia, the main damage to the second host nymphs clustered branches, buds, petioles and foliage, smoking Juice and honeydew caused by the occurrence of branches and leaves of soot disease, twigs withered, frail weakness, severely damaged redwood height growth reduced by 40-70%.