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Oak killer leaves scientists foxed

A mysterious killer disease that has attacked more than 200 oaks is bamboozling scientists, who have ruled out the dreaded sudden oak death as a cause.

The infection leads to massive stem bleeding and has been dubbed "acute oak decline" by Forestry Commission scientists. Dr Sandra Denman, a senior forest pathologist with the commission's Forest Research, said experts first thought the trees were stricken with sudden oak death. "However, our tests have confirmed this is not the case. Tests indicate...

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