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本文应用空间分布型统计参数 IwaoM~*-x 模型中α、β及若干聚集度指标分析了美洲斑潜蝇幼虫的空间分布型,并对抽样技术进行了探讨。结查表明,豆角、芸豆、白菜田美洲斑潜蝇的空间分布型为聚集型,依此提出了估算美洲斑潜蝇在不同虫口密度下的理论油样数。
In this paper, the spatial distribution of larvae of Liriomyza sativae is analyzed by α, β and some degree of aggregation index in the spatial distribution statistical parameter IwaoM ~ * -x model, and the sampling techniques are discussed. Results showed that the spatial distribution patterns of L. occidentalis in the bean, kidney bean and cabbage fields were aggregated. Based on this, the theoretical oil sample numbers for estimating the L. plutella at different population density were proposed.