| 5049007 |
chestnut blight or canker |
Cryphonectria parasitica |
Research activities concerning chestnut blight. Person in image: Bill MacDonald |
| 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. |