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Borys M. Tkacz's Images

Title: National Program Manager, Forest Health Monitoring
Organization: USDA Forest Service
Unit: Forest Health Protection - National Program - Chief's Office
Country: United States
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2 Images of 2 Subjects View Subject List View Image Details View Thumbnails

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Image Subject Name Scientific Name Description
4215007 Armillaria root rots Armillaria spp. basal resinosus in true fir
1241698 Tomentosus root disease Onnia tomentosus Stain in root indicating tomentosus root disease.

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