利用黄板监测不同茶树品种(品系)上黑刺粉虱成虫的种群消长及日节律变化

黄板诱杀是监测与防治茶园黑刺粉虱成虫的主要技术措施之一.本文利用黄板对不同品种(品系)上黑刺粉虱成虫的种群密度、年消长动态,以及一天中不同时间段内色板诱集到的粉虱成虫数量进行了较系统的调查.结果表明:1)中选 2号、中选3号和中选7号上黑刺粉虱成虫的发生数量显著低于目前茶区大面积种植的福鼎大白茶;2)在杭州黑刺粉虱成虫数量具有明显的4个高峰期,其中春季和秋季的虫口发生数量较高;3)色板在上午9:00~11:00期间诱集到的黑刺粉虱成虫数量最高.

Monitoring Population Dynamic and Circadian Rhythm ofAleurocanthus spiniferus Adults on Different Tea Varieties(Strains) by Using Yellow Sticky Trap

Yellow sticky trapping is one of the main approaches that were used to survey and controlAleurocanthusspiniferusadults. In this paper, yellow sticky trapping was used to monitor the population density of A. spiniferus on different tea varieties(strains), its annual population dynamic, and the number of insects trapped in the different time of a day. Results showed that the number ofA. spiniferus adults in Zhongxuan 2, Zhongxuan 3 and Zhongxuan 7 were significantly lower than that in Fuding Dabaicha, a cultivar widely cultivated. In Hangzhou, there were four peak densities ofA. spiniferus population, with highest population density in spring and autumu. The highest number ofA. spiniferusadults trapped in a day was between 9 am to 11 am.