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分析了福建省云霄县2004—2013年水稻三化螟发生动态及其为害情况。结果表明,三化螟灯下诱集数量、田间残虫量及发生为害程度总体属轻发生趋势。分析原因,主要是由于晚稻收割后冬种生产大面积开发,恶化了三化螟赖以生存发育繁衍的越冬场所,成为三化螟种群数量减少的重要因素。
The dynamics and damage situation of rice stem borer (Chilo suppressalis) from 2004 to 2013 in Yunxiao County, Fujian Province were analyzed. The results showed that the amount of trapped stem borer, the amount of the field and the degree of occurrence of damage is generally mild trend. The reason for the analysis is mainly due to the large-scale development of winter wheat production after the late rice harvest, deteriorating the overwintering places where the stem borer (Chilo suppressalis) is dependent for survival and reproduction, and becomes an important factor for reducing the population of the rice borer.