摘要
为明确桑天牛(Apriona germari Hope)越冬幼虫的空间分布,采用6种聚集度指标(m*/m,C,k,Iδ,I,CA)和2种回归模型(Taylor的幂法则和m*-m)测定其空间分布,并利用Blackith种群聚集均数λ解析该幼虫种群的聚集成因。结果表明,其呈均匀分布,建立了桑天牛越冬幼虫抽样数公式(N=t2(1.0097m-0.1971)/D2)和序贯抽样模型(T(n)=0.2n±0.4405),该模型可为桑天牛的预测预报及防治提供理论依据。
The spatial distribution patterns of overwintering larvae of Apriona germari larva in Morus alba were studied using six spatial distribution pattern analysis methods（ m^＊/ m,C,k,Iδ,I,CA） and two regression equations（ Taylor power and m^＊- m）,the assembling reasons were analyzed with average aggression size λ. The results indicated that spatial distribution patterns of Apriona germari larva population was in uniform distribution. The optimal sampling equation（ N = t^2（ 1. 0097m- 0. 1971） /D^2） and sequential sampling equation（ T（ n）= 0. 2n ± 0. 4405） were established. This paper may provide the basis for prediction and control of Apriona germari.
出处
《浙江农业学报》
CSCD
北大核心
2016年第2期302-305,共4页
Acta Agriculturae Zhejiangensis
基金
现代农业产业技术体系建设专项资金"蚕桑"(CARS-22-SYZ27)
关键词
桑天牛
越冬幼虫
空间分布
抽样技术
Apriona germari Hope
overwintering larvae
spatial distribution pattern
sampling techniques
作者简介
苏振国（1983-），男，山西右玉人，硕士，助理研究员，从事桑树病虫害防治工作。E—mail：szgmcn@163．com
