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麦蛾(Gelechia sp.)属鳞翅目,麦蛾科,在河北省邯郸、石家庄、保定、唐山、承德、张家口均有分布。该虫主要取食洋槐种子,不论孤立树、片林均有不同程度加害。1961年在河北易县部分地区调查,被害株率达100％,按被害种粒计算达10.3％。1962年在西陵社办林场调查,种荚被害率达75.4％,平均31.5％。因而使洋槐种子的产量受到很大损失。据此我们在1961—1962年对麦蛾生活习性和防治方法进行了研究,现将结果,介绍如下。
Gelechia sp. Belongs to the order Lepidoptera, Myrtaceae, Handan in Hebei Province, Shijiazhuang, Baoding, Tangshan, Chengde, Zhangjiakou are distributed. The insects main feeding acacia seeds, regardless of isolated trees, forest tablets have varying degrees of damage. In 1961, a survey was conducted in parts of Yixian County in Hebei Province. The rate of victim plants reached 100%, calculated as 10.3% of the killed seeds. In 1962, Xiling agency did a forest farm investigation, seed pod damage rate of 75.4%, an average of 31.5%. Thus greatly reducing the yield of acacia seeds. Based on this we conducted a study on the life habits and control methods of the moth from 1961 to 1962. The results are as follows.