Biological Notes on the Tea Small Tortrix (Adoxophyes Privatana WALKER) (Part 3):Distribution of the Tea Small Tortrix on Tea Garden
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1. Analysis and considerations were given to the nature of the distribution of tbe small tea tortrix larvae, injured leaves attacked by larvae and number of larvae per injured leaf in winter and summer seasons.<BR>2. The fitness of the three theoretical distributions, i. e., normal, Poisson's and Polya-Eggenberger's was examined to the observed values.<BR>3. In the sampling of the smallest plot (2 X 6 ft.), the frequency distribution of the larvae and injured leaves was applied to Pólya-Eggenberger's distribution, but not to the normal and Poisson's, and the frequency distribution of the number of larvae per injured leaf was not applied to these theoretical-distributions.<BR>4. With increase of the unit area, these frequency distributions showed fairly applic able to the theoretical values of Poisson's and normal series.
- 日本茶業技術協会の論文
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