SPATIAL-DISTRIBUTION OF MARUCA-TESTULALIS LARVAE ON COWPEA, AND A SEQUENTIAL SAMPLING PLAN FOR ESTIMATING LARVAL DENSITIES

被引：4
|
作者：
FIREMPONG, S
MAGALIT, H
机构：
来源：
INSECT SCIENCE AND ITS APPLICATION | 1990年 / 11卷 / 02期
关键词：
MARUCA-TESTULALIS; COWPEA; SEQUENTIAL SAMPLING PLAN;
D O I：
10.1017/S1742758400010602
中图分类号：
Q96 [昆虫学];
学科分类号：
摘要：
Larvae of Maruca testulalis were found to be randomly dispersed on flowers of cowpea cultivar Vita 1. Three models based on Taylor's power law, Lloyd's mean crowding and the negative binomial were tested to find out the best fit for developing a sequential sampling plan for this pod borer. Taylor's power law model gave the best fit whilst the negative binomial gave the least. A sequential sampling plan and a table of optimum sample size for use in the field were therefore developed, based on the random distribution.
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页码：217 / 222
页数：6
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