SAMPLING PLANS FOR MONONYCHELLUS-PROGRESIVUS AND OLIGONYCHUS-GOSSYPII (ACARI, TETRANYCHIDAE) ON CASSAVA IN AFRICA

被引：4

作者：

BONATO, O ^{[1
]}

BAUMGARTNER, J ^{[1
]}

GUTIERREZ, J ^{[1
]}

机构：

[1] AGR BUR GRISONS,CH-7000 CHUR,SWITZERLAND

来源：

JOURNAL OF ECONOMIC ENTOMOLOGY | 1995年 / 88卷 / 05期

关键词：

MONONYCHELLUS PROGRESIVUS; OLIGONYCHUS GOSSYPII; SAMPLING;

D O I：

10.1093/jee/88.5.1296

中图分类号：

Q96 [昆虫学];

学科分类号：

摘要：

Sampling plans were developed for 2 phytophagous mites, Mononychellus progresivus Doreste and Oligonychus gossypii (Zacher), on cassava in Africa. Analysis of intraplant distribution showed a preference of M. progresivus for the apical and middle parts of the plant, and of O. gossypii for the middle and lower plant parts. Thus, tire Ist fully developed leaf in the middle part was chosen as the common sampling unit for both species. On this unit, both species displayed aggregated distributions. The proposed binomial and enumerative sampling plans permit reliable estimates of both M. progresivus and O. gossypii densities. Forty fully developed leaves provided satisfactory estimates of the densities of both mite species.

引用

页码：1296 / 1300

页数：5

共 28 条

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