桑盾蚧又名桑白盾蚧,属同翅目盾蚧科。危害杏、李、桃等果树及丁香、榆叶梅、樱花、杏梅等园林花卉。1发生规律桑盾蚧以雌成虫和若虫群集固着在枝干上,以口针刺入树木2~3年生枝条皮层刺吸树木汁液。树木受害后春季发芽迟缓,枝条表面凹凸不平,枝叶萎缩,变黄干枯,果实大量脱落。受害重的蚧壳密集重叠,似覆盖一层棉絮,严重削弱树势。桑盾蚧排泄物、分泌物污染树体,极易诱发煤污病。3~5年可将果园毁灭。 Sangnian plicata, also known as Sang white shield scale, is a Homoptera shield scale Division. Harm the apricot, plum, peach and other fruit trees and cloves, Ulmus, cherry, apricot and other garden flowers. 1 Occurrence of Sangdong pensi female adults and nymphs colonies fixed in the branches, the acupuncture pierced the tree 2 ~ 3 year old branches cortex sucking tree juice. After the victims of the tree, germination was sluggish in the spring, the surface of the branches was uneven, the branches and leaves shrank, the yellow turned dry and the fruits were shed in large amount. Severe shelled heavy shelled scales, like covering a layer of cotton, severely weakened tree vigor. Sang Nai scale excrement, sewage pollution tree, easily lead to coal pollution. 3 to 5 years to destroy orchards.