广西松突圆蚧本地寄生蜂调查研究

Investigation on the native parasitoids on Hemiberlesia pitysophila in Guangxi Autonomous Region

从2007年1月至2008年6月,对广西松突圆蚧Hemiberlesia pitysophila Takagi本地寄生蜂的种类、分布、数量等进行了调查,结果收集到寄生蜂11种,能够证实是松突圆蚧寄生蜂的有4种:长缨恩蚜小蜂Encarsia citrina Craw、友恩蚜小蜂E.amicula Viggiani et Ren、惠东黄蚜小蜂Aphytis hui-dongensis Huang和中华四节蚜小蜂Pteroptrix chinensis Howard。其中分布最广、种群数量最多的为长缨恩蚜小蜂,占寄生蜂总数的76.56%,平均寄生率为5.46%。本次调查为下一步优势寄生蜂的开发利用提供了理论依据。

The species, distribution and population of the native parasitoids on Hemiberlesia pitysophila were investigated from January 2007 to June 2008 parasitoids were collected and 4 were identified as in Guangxi Autonomous Region. Eleven species of parasitoids of Hemiberlesia pitysophila. They were Encarsia citrina Craw,E. amicula Viggiani et Ren,Aphytis huidongensis Huang and Pteroptrix chinensis Howard. Among them, Encarsia citrina had the widest distribution and the largest population accounting for 76.56% of the parasitoid populations. Its average parasitization was 5.46%. The investigation provided scientific basis for the development and application of the dominant species.