| 1427021 |
sudden oak death |
Phytophthora ramorum |
Big Sur, California |
| 5055083 |
artist's conk |
Ganoderma applanatum |
Martin MacKenzie standing on a large Ganoderma conk |
| 5048006 |
ash root rot |
Scytinostroma galactinum |
Windthrown white ash with Scytinostroma galactinum root disease in northern lower Michigan. Person in image: Bob Heyd, MI DNR. |
| 5049007 |
chestnut blight or canker |
Cryphonectria parasitica |
Research activities concerning chestnut blight. Person in image: Bill MacDonald |
| 5042100 |
black knot |
Apiosporina morbosa |
Black knot of cherry. Multiple galls on small tree. Bob Heyd in image |
| 5048072 |
beech bark disease |
Nectria coccinea |
Examining a snapped beech affected by beech bark disease. People in image: Roger Mech, MI DNR; Manfred Mielke, USFS |
| 5049001 |
beech scale |
Cryptococcus fagisuga |
Cryptococcus fagisuga on American beech. |
| 5049002 |
beech scale |
Cryptococcus fagisuga |
Cryptococcus fagisuga on American beech. |
| 5297089 |
American chestnut |
Castanea dentata |
Collecting chestnut fruits for blight research in Minnesota.; Person in image: Charlie Burnham and Peter Bedker. |
| 5297090 |
American chestnut |
Castanea dentata |
Collecting chestnut fruits for chestnut blight research in Minnesota. Person in image:Peter Bedker |
| 5297091 |
American chestnut |
Castanea dentata |
Collecting chestnut fruits for chestnut blight research in Minnesota. Person in image: Charlie Burnham and Peter Bedker |
| 5297092 |
chestnut blight or canker |
Cryphonectria parasitica |
Experimental treatment of chestnut blight cankers in Wisconsin. Person in image:Linda Haugen |
| 5297093 |
chestnut blight or canker |
Cryphonectria parasitica |
Field crew doing chestnut blight research in Wisconsin. |
| 5297096 |
chestnut blight or canker |
Cryphonectria parasitica |
Chestnut blight research in Wisconsin. Person in image: Barb Spears |
| 5297100 |
chestnut blight or canker |
Cryphonectria parasitica |
Field crew doing research on chestnut blight in Wisconsin. |
| 5298003 |
chestnut blight or canker |
Cryphonectria parasitica |
Field crew doing research on chestnut blight in Wisconsin. |
| 5298006 |
chestnut blight or canker |
Cryphonectria parasitica |
Field crew doing research on chestnut blight in Wisconsin. |
| 5298007 |
chestnut blight or canker |
Cryphonectria parasitica |
Field crew doing research on chestnut blight in Wisconsin. |
| 5298008 |
chestnut blight or canker |
Cryphonectria parasitica |
Field crew doing research on chestnut blight in Wisconsin. |
| 5298009 |
chestnut blight or canker |
Cryphonectria parasitica |
Tree climbing field crew doing research on chestnut blight in Wisconsin. |