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皱绒粉蚧(Eriococcus rugosus wang)属蚧总科,绒蚧属。我市现有毛竹林4,500多亩,受皱绒粉蚧为害较重的成园毛竹林达1,000多亩,严重地影响竹林的正常生长。1980—1984年,我们在青山蚕桑场进行了此虫生物学特性的观察。现将资料整理于下: 一、寄主及危害 皱绒粉蚧在我市主害毛竹,亦能危害刚竹。 此虫以若虫寄生于1—2年生竹嫩梢叶鞘内,初期每叶鞘可寄生多头,最后成活只1—2头。被害后的嫩梢先发黄,抽新梢少,严重受害的枯死,一般受害的竹林,出现霉污
Eriococcus rugosus wang is a member of the family Scale, velca. There are 4,500 mu of bamboo forest in our city, and 1,000 mu of heavier parkland bamboo forest harmed by the wrinkle velvet scale, seriously affecting the normal growth of the bamboo forest. From 1980 to 1984, we observed the biological characteristics of this worm at the silkworm mulberry field in Qingshan. Now the data is organized in the following: First, the host and endanger the velvet mealybugs mosquito in the city of main victims, but also endanger just bamboo. This worm nymphs parasitized in 1-2 years old bamboo shoots sheath, the initial sheath per parasitic long, the last surviving only 1-2 head. After the shoot of young shoots first yellow, pumping fewer shoots, seriously wounded dead, the general victims of bamboo, mildew appears