美洲斑潜蝇在棉田的空间分布型研究

Study on the Spatial Pattern of Liriomyza sativae Blanchard in Cotton Field

用聚集度指标法分析了美洲斑潜蝇在棉田的空间分布型及垂直分布、水平分布情况。结果表明,棉田内美洲斑潜蝇的空间分布格局为随机分布,垂直分布表现为下部大于中部、中部大于上部,水平分布表现为田边与田中间危害程度差别不显著。

The spatial pattern and the vertical and level distribution of the Liriomyza satiμae Blanchard in cotton field were studied with the indices of patchness, The result showed that the spatial pattern of Liriomyza satiμae Blanchard belong to random distribution, and the number of the Liriomyza satiμae Blanchard in the lower part was more than middle part, and the middle part was more than the upper part. It also showed the harm rate of Liriomyza staiμae to cotton is almost the same the margin and middle part of the cotton field.