秦巴山区油菜蚜虫优势种及有翅蚜消长规律研究初报

通过对油菜蚜虫优势种及其有翅蚜消长规律调查,结果表明:秦巴山区蚜虫为桃蚜和萝卜蚜混合发生,优势种为桃蚜,主要以无翅成若蚜在油菜等十字花科植物上越冬,其生活史属非全周期型。3月下旬为有翅蚜始见期,5月上旬为迁飞高峰期。做好4月上旬防蚜工作,是控制蚜虫传播病毒病的关键。

Research into the dominant species of Rape aphids and the rule of increase and decrease of the aphids with the wings in the Qinba mountainous area

Through the investigation to the increase and decrease rule of Rape aphids with wings and without wings, the result indicated that in the Qinba Mountainous area, aphids mix occurrence with Lipaphis erysimi (Kaltenbach) and Myzus persicae (sulzer), the dominant species was Myzus persicae (sulzer). They survive the winter mainly by non-wing mature and immature aphids on mustard family plants such as Rape and so on. Its life history was the non-complete period. The wing aphids began to be seen in the late Marc...