杨小舟蛾的生物学特性

Bionomics of-Micromelalopha troglodyta

:杨小舟蛾是为害杨树人工林的主要食叶害虫。在江苏徐州 1年发生 5代 ,以蛹越冬。第一代是种群基数的积累阶段 ,第二代是种群数量的增殖阶段 ,第三、四代为成灾阶段。笔者详细报道了该虫的年生活史、发育历期、生活习性和天敌情况等。

Micromelalopha troglodyta is the main pest of eating leaves for damaging Populus spp. , It has five generations a year in Xuzhou district,Jiangsu province and overwinters as pupa. The first generation is the accumulating stage of the popularity base. The second generation is the reproducing stage of the popularity number. The third and fourth generations are the disastering stage. This paper reports this kind of pests life history, development period, living custom and natural enemy in detail.