日本松干蚧全国科研协作组于1984年11月在浙江富阳举行学术讨论会,会议收到论文和摘要19篇,会上围绕基础研究、天敌繁殖利用、抗性树种选择和营林技术等专题进行了讨论。特别对松干蚧发生的周期性、毁灭性、防治策略及研究方法等进行了有益的探讨。近年来由于重视防治工作,大多数虫害发生地区为害程度有所减轻或稳定,但少 Japan Songko Kuwana National Research Collaboration held a symposium in Fuyang, Zhejiang Province in November 1984, and received 19 papers and abstracts. The symposium was held on the topics of basic research, breeding and use of natural enemies, selection of resistant species and afforestation techniques discuss. In particular, the periodicity, devastating, prevention and control strategies and research methods of Songkuai scale were discussed. In recent years, due to emphasis on prevention and control work, most of the pest damage areas have been reduced or stabilized, but less