苏州地区日本壶链蚧寄主种类及危害程度研究

Host species and damage levels of Asterococcus muratae(Kuwana) in Suzhou area

为考察苏州地区日本壶链蚧的寄主种类及危害程度,调察了苏州地区42科106种阔叶观赏树和灌木。结果表明:日本壶链蚧寄主植物有13科25种,其中木兰科、蔷薇科观赏树木受害严重;日本壶链蚧不为害草本、仙人掌类观赏植物、禾本科竹类,以及棕榈科、松科、柏科、杉科植物;初孵若虫在不同寄主植物上为害分布位置有所不同,通常喜聚集于嫩梢、花芽、新生叶等幼嫩组织,以及叶柄、枝痕、枝干裂缝、节间缝隙、介壳旁,后期多聚集于一二年生枝干为害。

In order to explore the host species and damage degree of Asterococcus muratae （Kuwana）in Suzhou area,42 families and 106 species of broadleaf ornamental and bushes were investigated.The results showed that there were 13 families and 25 species of host plants,Magnoliaceae and Rosaceae suffer severely a-mong them.Asterococcus muratae （Kuwana）did not harm the herb,cactus kind of ornamental plants,bamboo,ce-reals,palm,pinaceae,cupressaceae and sancho plant.On different host plants,the distribution position of first in-star nymphs was different,they usually liked gathering in tender tip,flower bud,new leaf,petioles,branch mark, crack,internode slit,and next to the shell.Also,they tended to gather and fix in biennial branches.