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    Stem Decays and Cankers (6)
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    Incertae sedis (4)
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USDA Forest Service

USDA Forest Service

The U.S. Department of Agriculture Forest Service is a Federal agency that manages public lands in national forests and grasslands. The Forest Service is also the largest forestry research organization in the world, and provides technical and financial assistance to state and private forestry agencies. Gifford Pinchot, the first Chief of the Forest Service, summed up the purpose of the Forest Service—"to provide the greatest amount of good for the greatest amount of people in the long run."
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Subject Scientific Name Images
butternut canker Sirococcus clavigignenti-juglandacearum 5
crown gall Rhizobium radiobacter 1
Cytospora canker Valsa sordida 1
Dothichiza canker Dothichiza populea 1
Dothiorella gummosis and rot Dothiorella gregaria 1
Eutypella canker Eutypella parasitica 2
fly agaric Amanita muscaria 1
Leptographium root disease Leptographium procerum 4
Nectria canker Nectria spp. 1
needle blight of larch Meria laricis 1
sapstreak disease of sugar maple Ceratocystis coerulescens 2
shepherd's crook leaf and shoot blight Venturia populina 1
sulfur shelf Laetiporus sulphureus 1

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