石榴园桔小实蝇种群动态研究

Investigation of Population Dynamics of Bactrocera dorsalis from Megranate Ochards

通过20032、004年的系统调查,对云南省建水县不同管理水平下的石榴园桔小实蝇种群动态规律进行研究。结果表明:建水石榴园,7月始见桔小实蝇成虫,危害高峰出现在9、10月,不同石榴园中桔小实蝇种群消长规律年与年之间有所差异,特别是种群数量方面。不同石榴园之间桔小实蝇的发生时间和数量不同,这也许是管理水平不同导致石榴园抗虫性不同所致。

Based on the systemically survey, the population dynamics of Bactrocera dorsalis from varieties of me.rotate oehards under the different management in Jiarshui were investigated for two years. The results showed that the emergence of Boctrocera dorsolis adults was in July and population dynamics of Bactrocera dorsalis was not the same from year to year, especially in the number of Bactrocera dorsalis. The reason may be the resistance of varieties of megranate ochards under different managements.