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松突圆蚧Hemiberlesia pitysophila Ta-hagi 自1982年发现传入与港澳毗邻的广东沿海县、市,到1987年底止,已蔓延扩散到20个县市,650万亩,其中120多万亩松林濒于枯死。该蚧寄生个体小,隐蔽性强,多寄生于松针叶鞘内,形成叶鞘和介壳双层保护,给防治带来了很大的困难。为了探索松突圆蚧生物防治方法,保护和利用有效天敌,以控制该蚧的发生和蔓延,1985—1987年,我们在广东惠东、深圳、珠海、中山等地,对松突圆蚧天敌做了调查,并对一些优势种进行了观察研究,同时在日本琉球大学东清二教授协助下,对来自日本冲绳县的以琉球松为寄主的松突圆蚧寄生性天敌进行了调查分析。
Hemiberlesia pitysophila Ta-hagi was discovered in 1982 in coastal counties and cities in Guangdong adjacent to Hong Kong and Maucao. By the end of 1987, it spread to 20 counties and cities and reached 6.5 million mu, of which over 1.2 million mu Death. The scale insects individual small, strong concealment, more parasitic in pine needle sheath, the formation of leaf sheath and mesenchymal double protection, prevention and control brought great difficulties. In order to explore the method of biological control of Sciurus annua and to protect and utilize effective natural enemies in order to control the occurrence and spread of Scales of Scales, from 1985 to 1987, we studied the natural enemies of Sciurus cavernosum in Guangdong, Huidong, Shenzhen, Zhuhai and Zhongshan Investigated and investigated some dominant species. At the same time, assisted by Professor Dong Qing-il from Ryukyu University in Japan, the parasitic natural enemies of Sciurus elegans from Okinawa Prefecture in Japan were investigated.