湖北郧西地区烟蚜的种群数量动态研究

Population Dynamics of Myzus persicae(Sulzer)in Yunxi Tobacco Fields of Hubei Province

于2011～2012年系统调查了郧西烟区不同海拔和品种烟田的烟蚜[Myzus persicae （Sulzer）]数量，结果表明，不同海拔地区烟蚜数量差异显著，高海拔地区烟蚜数量明显大于低海拔地区。烟蚜对不同品种烟草的选择性不同，香料烟烟蚜发生最重，烤烟和晒烟发生较轻。2011年烟蚜的发生量远大于2012年，且有翅蚜的比例较大；2012年烟蚜发生量较轻，有翅蚜的比例始终处于较低水平。

The population dynamics of Myzus persicae(Sulzer)were investigated in different altitudes and varieties of tobacco fields of Yunxi County during 2011 and 2012.The results showed that the population density of Myzus persicae(Sulzer)had significant differences among the tobacco fields with different altitude,ie,the higher tobacco field had higher aphid population.The selection was various in tobacco cultivars,and oriental tobacco was selected by aphids more than flue-cured tobacco and sun-cured tobacco.The aphid population was higher in 2011 than that in 2012,and the winged aphids had a big proportion in 2011 whereas a small proportion in 2012.