摘要： 麦黑斑潜叶蝇近年在麦田有危害加重的趋势,为进一步了解其生态习性,确定正确的田间抽样调查方法,作者于麦黑斑潜叶蝇为害盛期调查了其幼虫和蛹在8个品种麦田的种群密度,并采用聚集度指标法、Taylor幂法则和 m^*-m回归法测定了幼虫和蛹在麦田的空间分布型。结果表明,幼虫和蛹在徐州26号的麦田种群密度最大,济南17号的麦田种群密度最小;5月初麦黑斑潜叶蝇幼虫和蛹在麦田呈均匀分布。

关键词: 麦黑斑潜叶蝇, 幼虫, 蛹, 空间分布, 小麦

Abstract: The damage of Cerodonta denticornis to wheat has increased in recent years. In order to find out its behavior and the correct sampling method,its population density in 8 wheat varieties was investigated during the damage peak and spatial distribution of larva and pupae in wheat field was analyzed with some aggregation indexes, Taylor}s power principle and m^*-m regression equation. The results showed that the highest population density was in the field of variety Xuzhou 26,but in the field of variety Jinan 17,the pest had the lowest density. In early May, the larva and pupae revealed uniform distribution.

Key words: Cerodonta denticornis Panzer, Larva, Pupae, Spatial Distribution, Wheat

中图分类号: 

• S433