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Robert Krueger, Horticulturist, documents change in plant health

 Image Number D4481-1

During biological indexing of citrus at the USDA-ARS-NCGRCD, horticulturist Robert Krueger documents any changes he observes in plant health or visible symptoms as part of testing before the release of material from quarantine to the public.


Photo by Brittany Moreland.


640 pixels wide: (D4481-1.jpg)


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