| Image |
Descriptor |
Description |
Photographer |
| 1137030 |
Damage |
The small dwarf mistletoe plants are barely visible. Siskiyou County, California |
Donald Owen |
| 1210078 |
Damage |
Witches' brooms |
Dave Powell |
| 1241489 |
Damage |
Witches brooms often indicate dwarf mistletoe infection. Brooms result from a proliferation of small twigs on a branch. Douglas-fir is a species which generally form large, distinct brooms in response to dwarf mistletoe infections. Infection tend to be most severe in the lower portions of the crowns. |
Jane Taylor |
| 1241491 |
Damage |
Witches brooms and dead tops are typical symptoms. |
Oscar Dooling |
| 1442078 |
Damage |
|
USDA Forest Service - Rocky Mountain Region Archive |
| 1442079 |
Damage |
|
USDA Forest Service - Rocky Mountain Region Archive |
| 1442080 |
Damage |
|
USDA Forest Service - Rocky Mountain Region Archive |
| 1442081 |
Damage |
|
USDA Forest Service - Rocky Mountain Region Archive |
| 1442082 |
Damage |
|
USDA Forest Service - Rocky Mountain Region Archive |
| 1467124 |
Damage |
|
USDA Forest Service - Ogden Archive |
| 1467133 |
Damage |
|
USDA Forest Service - Ogden Archive |
| 2250005 |
Damage |
on Douglas-fir |
USDA Forest Service Archive |
| 2250019 |
Damage |
on Douglas-fir |
Oscar Dooling |
| 2250020 |
Damage |
on Douglas-fir (dead tree) |
Oscar Dooling |
| 2250021 |
Damage |
close-up view on Douglas-fir |
Oscar Dooling |
| 2250022 |
Damage |
multi-aged stand with developing infection |
Oscar Dooling |
| 1241498 |
Feature(s) |
Female |
Robert L. James |
| 1241499 |
Feature(s) |
Male |
John W. Schwandt |
| 1467328 |
Flower(s) |
|
USDA Forest Service - Ogden Archive |
| 1949043 |
Infestation |
Arceuthobium douglasii on Pseudotsuga menziesii, showing top dieback. |
J.W. Walters |
| 1949044 |
Infestation |
Arceuthobium douglasii on Pseudotsuga menziesii; mistletoe shoots scattered along the host branch. |
J.W. Walters |
| 1467326 |
Infestation |
|
USDA Forest Service - Ogden Archive |
| 1365002 |
Infestation |
Witches' brooms on severely infested tree. |
David Conklin |
| 1442077 |
Infestation |
|
USDA Forest Service - Rocky Mountain Region Archive |
| 0656055 |
Infestation |
Arceuthobium douglasii on Pseudotsuga menziesii showing witches' brooms. |
J.W. Walters |
| 0806068 |
Infestation |
Malheur National Forest, northeastern Oregon |
Dave Powell |
| 1467108 |
Infestation |
|
USDA Forest Service - Ogden Archive |
| 1467110 |
Infestation |
|
USDA Forest Service - Ogden Archive |
| 1467131 |
Plant(s) |
|
USDA Forest Service - Ogden Archive |
| 1467132 |
Plant(s) |
palmate broom |
USDA Forest Service - Ogden Archive |
| 1467327 |
Sign |
|
USDA Forest Service - Ogden Archive |
| 1467130 |
Sign |
basal cups |
USDA Forest Service - Ogden Archive |
