Photos
Whitebark pine primary needle blister rust infection
| Title: | Whitebark pine primary needle blister rust infection |
|---|---|
| Description: | Blister rust infection on primary needles and cotyledons of young seedlings of two families of whitebark pine, approximately two months after inoculation. Note differences between the two families - the three seedlings in the bottom row showing very advance lesion growth in the needles. |
| Photographer: | Richard Sniezko |
