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研究玉米螟的优势种及其分布,是进行玉米螟测报和防治研究的基础工作,具有重要的学术意义。为了全面的澄清河北省不同类型地区的玉米螟优势种,1981年我们根据地理条件和玉米螟发生世代的不同,分别在长城以北、长城脚下、太行山脉、东部沿海和冀中南平原地区,选择有代表性的15个试验点,采用性信息素的田间生测和形态分类相结合的方法,进行了优势种及其分布的研究,结果如下:1、河北省农田发生的玉米螟优势种是亚洲玉米螟[Ostrinia furnacalis]。2、欧洲玉米螟[Ostrinia nubilalis]在河北各地亦有程度不同地分布,其中在张家口的分布比率明显高于其他地区。
Studying the dominant species and their distribution of maize borer is the basic work of the report of maize borer and its prevention and control, which is of great academic significance. In order to comprehensively clarify the dominant species of corn borer in different types of Hebei Province in 1981, according to the different geographical conditions and generations of corn borer, we choose north of the Great Wall, the foot of the Great Wall, the Taihang Mountains, the eastern coast and the Jizhongnan Plain respectively A representative 15 experimental sites were selected to study the dominant species and their distribution using sex pheromone field test and morphological classification. The results are as follows: 1. The dominant species of corn borer in farmland in Hebei Province were Ostrinia furnacalis. 2, Ostrinia nubilalis is also distributed to different extents in Hebei Province, among which the distribution ratio in Zhangjiakou is obviously higher than other regions.