美洲斑潜蝇空间格局与抽样技术的研究

STUDIES ON SPACIAL PATTERN AND SAMPLING TECHNIQUE OF LIRIOMYZA SATIVAE BLANCHARD

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的空间格局，并对抽样技术进行了探讨。结果表明，豇豆和四季豆田美洲斑潜蝇的空间格局为聚集型，依此提出了估算美洲斑潜蝇在不同虫口密度下的理论抽样数。

Spacial pattern of Liriomyza sativae Blanchard was analyzed by using α and β,the statistical parameter of spacial distribution Iwao M-x model, and some indexes of social degree, the sampling technique was discussed as well. The result showed that the spacial pattern of Liriomyza sativae Blanchard on common Cowpea and Phaseolus vulgaris Linn. was social. Based on the result, the theoretical sampling number of account Liriomyza sativae Blanchard at different population density was put forward.