灰拟花尺蛾生物学特性的初步研究

Primary Study on Biology Characters of Larerannis orthogrammaria

灰拟花尺蛾是尺蛾类危害多种阔叶树木的食叶害虫,尤其是对天然林桦树林危害最为严重。此虫在青海湟源县1a发生一代,以卵在树皮裂缝中越冬,以蛹在土茧内越夏,幼虫出现于5月中旬,成虫出现于10月初。建议加强该虫的防治和检疫。

Larerannis orthogrammaria is a defoliation pest by endanger to broadleaf trees. Especially natural birch is endangered seriously by it, It is happened one generation in a year in Huangyuan Qinghai. It lives through the winter by ovum in splits of bark, and lives through the smnmer by pupa in cocoon. Larva is happened in the first of May. and adult is happened in the first of October, Strengthened control and quarantine of it were suggested.