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Picture library: 2004662

Ceratocystis ulmi.  Close up of spraying elm log with nematode bacterium complex.

Reference: 2004662

Ceratocystis ulmi. Close up of spraying elm log with nematode bacterium complex.
Date Taken: 15th April 1974

Photographer: C. Walker
Copyright: Crown Copyright
Credit line: Forestry Commission / C. Walker

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