玉米田斜纹夜蛾空间分布型及抽样技术
The spatial distribution pattern and sampling technique of Prodenia litura in the cornfield
汪恩国;陈克松;李达林;罗桂楼
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作者单位：浙江省临海市植物保护站,浙江临海317000
中文关键词：斜纹夜蛾;鲜食玉米;空间分布型;抽样技术
英文关键词：Prodenia litura; vegetable corn; spatial distribution pattern; sampling technique;
中文摘要：对秋甜玉米田的斜纹夜蛾不同发生密度田块调查 ,取得了 7组样本资料 ,运用聚集度指标法、Iwao法和Taylor法等对其空间分布型进行测定检验 ,结果表明斜纹夜蛾幼虫呈聚集分布 ,其聚集原因经Blackith种群聚集均数测定 ,当m <3.2604时 ,其聚集是由于某些环境如气侯、土壤湿
英文摘要：Three methods of aggregated indices and Iwao's way (regressive relation by M * -m) and power law of Taylor were used to test the spatial disritbution pattern of Prodenia litura in the vegetable corn field. The results showed that the larvae of P. litura b