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Picture library: 2004703

Ceratocystis ulmi.  Death of mature English elm by basal stem inoculation in root severance trials.

Reference: 2004703

Ceratocystis ulmi. Death of mature English elm by basal stem inoculation in root severance trials.
Date Taken: 15th August 1974

Photographer: B. J. W. Greig
Copyright: Crown Copyright
Credit line: Forestry Commission / B. J. W. Greig

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