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United States Department of Agriculture

Agricultural Research Service

ARS Photo Library

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Image Number K8223-16

Shaving away bark with a pocket knife, horticulturist Tom Beckman examines a tree killed by PTSL disease. The healthy tree to the left is growing on the new Guardian rootstock.

Photo by Rob Flynn.



640 pixels wide: (k8223-16.jpg)




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Last Modified: 5/23/2006
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