| 5492324 |
Symptoms |
Dark streaking on wood of oak branch |
| 5492325 |
Asexual Spore |
Endoconidia and conidia of Ceratocystis fagacearum from culture |
| 5492326 |
Culture |
Appearance of Ceratocystis fagacearum grown on acidified potato dextrose agar (APDA) at 18 degrees C. (at 3-4 weeks) |
| 5254040 |
Symptoms |
Individual leaf symptoms |
| 5300088 |
Symptoms |
A small oak wilt pocket |
| 5039017 |
Damage |
Red oak killed by oak wilt |
| 5040068 |
Symptoms |
Red oak with oak wilt, shedding leaves and marked for removal |
| 5046016 |
Symptoms |
Leaf symptoms on red oak |
| 5039072 |
Symptoms |
Oak mortality caused by oak wilt. |
| 5039082 |
Symptoms |
Small oak tree killed by oak wilt |
| 5039086 |
Symptoms |
Oak wilt mortality and symptoms |
| 5038074 |
Symptoms |
Oak wilt crown symptoms. |
| 5005031 |
Management |
Mauget Generation II microinjector; For injecting propiconizole fungicide for oak wilt prevention in central Texas |
| 5034061 |
Equipment |
Vibratory plow with a five foot blade, used for disrupting root graft connections for control of oak wilt. Entomologist Jim Hanson on the Cat |
| 0758073 |
Infestation |
Oak killed by oak wilt. |
| 0758071 |
Symptoms |
Group of dead Texas live oaks killed by oak wilt |
| 0758074 |
Control |
Group of Texas live oaks protected from spread of fungus via root grafts by trenching |
| 0758075 |
Symptoms |
Foliage in early stages of wilt by oak wilt disease. |
| 0758076 |
Feature(s) |
Root grafts on Texas live oak. These are the main means by which oak wilt spreads. |
| 0758077 |
Research |
Color infrared aerial photo taken from a U-2 showing patterns of forest vegetation and group of trees killed by oak wilt. |
| 0758081 |
Research |
Color infrared panoramic aerial photo taken from a U-2 showing distribution of forest vegetation and trees killed by oak wilt. |
| 5045006 |
Symptoms |
|
| 5262015 |
Symptoms |
|
| 5265044 |
Symptoms |
|
| 5030086 |
Sexual Spore |
spore pad |
| 5030069 |
Symptoms |
Spore mat and pressure pad under the bark of oak-wilt killed tree. Jenny Juzwik is the person in the picture. |
| 5030071 |
Control |
Control of oak wilt by uprooting stumps of oak killed by Ceratocystis fagacearum, to prevent root-root spread. Chequamegon-Nicolet National Forest. |
| 5030072 |
Control |
Oak wilt control by uprooting stumps of trees killed by oak wilt, to prevent root-root transmission. Chequamegon-Nicolet National Forest. |
| 5030073 |
Control |
Oak wilt control by uprooting stumps of trees killed by Ceratocystis fagacearum, to prevent root-root transmission of the pathogen. Chequamegon-Nicolet National Forest. |
| 5030077 |
Control |
Uprooted stump of Quercus sp. to control spread of oak wilt through root systems. This may be a useful technique where vibratory plowing or trenching is impossible. |
| 5030078 |
Control |
Uprooted stump with roots severed to prevent root-root transfer of the oak wilt pathogen in glacial till soils. Chequemegon-Nicolet National Forest. |
| 5030079 |
Control |
An uprooted stump of a tree killed by oak wilt. Uprooting stumps and severing root connections may help to prevent spread of oak wil in situations where vibratory plowing or trenching is not feasible. |
| 5030081 |
Control |
Stump of a tree killed by oak wilt, with all roots severed to prevent root-root transfer of the pathogen. |
| 5030070 |
Display or Sign |
Sign warning not to gather firewood, to prevent transfer of oak wilt, on Chequamegon-Nicolet National Forest. |
| 5030075 |
Control |
Boulder-strewn terrain where oak wilt control using a vibratory plow is not an option. Root disruption by uprooting stumps may provide some control of root-root spread of the pathogen on such sites. |
| 5030084 |
Display or Sign |
Oak wilt treatment site; Sign forbidding firewood gathering, to prevent spread of oak wilt. |
| 5032025 |
Symptoms |
|
| 5042040 |
Control |
vibratory plow line; low impact |
| 5046017 |
Symptoms |
|
| 5046003 |
Symptoms |
tree with close-up of leaves |
| 5039084 |
Symptoms |
sprout symptoms |
| 5045080 |
Symptoms |
crown symptoms |
| 5045081 |
Symptoms |
|
| 5045082 |
Symptoms |
oak wilt pocket |
| 5045083 |
Symptoms |
|
| 5039064 |
Symptoms |
crown symptoms |
| 5039065 |
Symptoms |
crown symptoms and leaf casting |
| 5039070 |
Control |
oak wilt injection |
| 5039071 |
People |
oak wilt investigation, Bob Heyd |
| 5039073 |
Symptoms |
oak wilt killed trees behind house |
| 5039074 |
Symptoms |
|
| 5039079 |
Symptoms |
oat wilt pocket in woodlot |
| 5039081 |
Symptoms |
|
| 5039061 |
Control |
oak wilt control trench with trencher |
| 5039062 |
Control |
control trench |
| 5039063 |
Symptoms |
crack in bark |
| 5039083 |
Sexual Spore |
spore mat |
| 5039087 |
Control |
trench line |
| 5039089 |
Symptoms |
wilting symptoms |
| 5039080 |
Symptoms |
leaf symptoms |
| 5055016 |
Symptoms |
|
| 5038015 |
Symptoms |
staining in oak |
| 5038013 |
Feature(s) |
Chalara anamorph |
| 5038014 |
Culture |
|
| 5005032 |
Symptoms |
|
| 5005033 |
Symptoms |
interveinal necrosis |
| 5005034 |
Symptoms |
veinal necrosis |
| 5005035 |
Symptoms |
interveinal chlorosis |
| 5005036 |
Symptoms |
interveinal chlorosis |
