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在黄波罗上发现一种新的害虫黄波罗丽木虱(Calophya nigra Kuwayama)。由于成、若虫直接刺吸和若虫排出含糖粪便引起煤污病,严重影响树木的生长和发育。定点、定期野外观察及盆栽培幼苗接种木虱饲养试验,该虫在哈尔滨一年三代,以第三代成虫在枯枝落叶层下,土缝内越冬。翌年5月上旬越冬成虫进行补充营养。卵散产于叶背主脉两侧。若虫共三龄,固定于叶背面取食。用模糊聚类的方法对该虫的种群动态进行了分析,成虫种群动态分7类,若虫和卵各分2类。另外,对其分布、危害及发生规律也进行了初步研究。
A new pest, Calophya nigra Kuwayama, was found on Huang Polo. As a result, the nymph directly sucking and nymph excretion of sugar excrement caused by coal pollution, seriously affecting the growth and development of trees. Fixed-point, regular field observations and potted seedlings inoculated with lice feeding trials, the worm in Harbin for three generations a year to the third generation of adults in the litter layer, soil seams winter. The following year in early May adult winter supplements nutrition. Egg scattered in the back of the main vein on both sides. A total of three instar nymphs, fixed on the back of leaves feeding. The population dynamics of the insect were analyzed by fuzzy clustering method. There were 7 species of adult population and 2 species of nymphs and eggs. In addition, its distribution, hazards and occurrence of a preliminary study.