Using a ceptometer to validate a visual evaluation of the degree of defoliation of holm and cork oak trees

Margarida Tome; Maria Vasconcelos

Treesearch

Using a ceptometer to validate a visual evaluation of the degree of defoliation of holm and cork oak trees

Informally Refereed

Authors:

Margarida Tome, Maria Vasconcelos

Year:

2000

Type:

General Technical Report

Station:

Northern Research Station

Source:

In: Hansen, Mark; Burk, Tom, eds. Integrated tools for natural resources inventories in the 21st century. Gen. Tech. Rep. NC-212. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station. 425-429.

Download (PDF 327 KB)

Download (PDF 327 KB): https://research.fs.usda.gov/download/treesearch/15888.pdf

Abstract

The study presented in this paper is part of a project to monitor the defoliation degree of cork and holm oak trees in stands with signs of "decline," alter application of different amounts of Aliette, a product specific for Phytophotora cinnamonii, one of the possible causes of the "decline". The specific objective was to validate a qualitative classification of the degree of defoliation of cork and holm oak trees.

Parent Publication

Integrated tools for natural resources inventories in the 21st century

Citation

Tome, Margarida; Vasconcelos, Maria. 2000. Using a ceptometer to validate a visual evaluation of the degree of defoliation of holm and cork oak trees. In: Hansen, Mark; Burk, Tom, eds. Integrated tools for natural resources inventories in the 21st century. Gen. Tech. Rep. NC-212. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station. 425-429.