The Rate of Spread of Oak Wilt in the Lake States
Between 1955 and 1959 an average of 42 percent of the oak wilt infection centers surveyed in southeastern Minnesota and central Wisconsin increased in size annually. The average rate of increase in radius of infection centers was 3.2 feet per year. In the same general area the annual rate of new infection centers establishment was 1.7 for each 100 acres of oak type sampled. Attempts to correlate variation in the rates of establishment and enlargement of infection centers with various stand and site factors were unsuccessful.
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Document Type: Journal Article
Affiliations: Chief of the Station's Division of Forest Disease Research
Publication date: 01 November 1963