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Picture library: 2001246

Virus - Poplar mosaic virus on small rooted cuttings of poplar trichocarpa . Top leaves have no symptoms but lower leaves with prominent vein clearing.

Reference: 2001246

Virus - Poplar mosaic virus on small rooted cuttings of poplar trichocarpa . Top leaves have no symptoms but lower leaves with prominent vein clearing.
Date Taken: 15th August 1966

Photographer: Thelma Evans
Copyright: Crown Copyright
Credit line: Forestry Commission / Thelma Evans

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