合肥郊区烟蚜种群的数量消长规律

Population Fluctuation Patterns of Myzus Pericae on Nicotiana Tabacum in Hefei Suburbs.

对合肥郊区烟蚜（ Ｍｙｚｕｓ ｐ ｅｒｓｉｃａｅ Ｓｕｌｚｅｒ）的数量消长规律进行了三年系统调查。结果表明，烟蚜种群数量消长，一年中有两个明显的峰值，１９９５ 年为 ５ 月１４ 日和７ 月２ 日，１９９７ 年为５ 月２０日和 ６ 月２７ 日，１９９８ 年为５ 月 １６ 日和６ 月 １３ 日，且 １９９５ 年和 １９９８ 年第二峰值大于第一峰值，１９９７ 年第二峰值小于第一峰值。第一峰值期以有翅蚜占优势，第二峰值期以无翅蚜占优势。本文还分析了食料、天敌和气候因子对烟蚜种群数量的调节作用。

Investigations on the population fluctuation patterns of M. persicae on N. tabacum were carried out in the suburbs of Hefei from May to July in 1995 ,1997 snd 1998 respectively. In the investigated fields ,the aphid population showed two peaks, with the first one 14 May,1995,20 May ,1997 and 16 May ,1998,and the second one on 2 July,1995,27June,1997 and 13 June,1998. The second peak values appeared greater than thefirst one in 1995 and 1998,but smaller than that in 1997. The adulds in the population were mainly at the winged at the first paek. Regunlation effects of plant varieties, natural enemies and climate on aphid population were also discussed.