oak wilt
Ceratocystis fagacearum (T. W. Bretz) J. Hunt
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| Taxonomic Rank: Sordariomycetes > Microascales > Ceratocystidaceae > Ceratocystis |
| Taxonomic Synonym(s): Chalara quercina B.W. Henry [Anamorph] Endoconidiophora fagacearum T.W. Bretz |
| Category: Diseases: Vascular Wilts |
172 Records | View Thumbnails |
| Image | Descriptor | Description |
|---|---|---|
| 0355038 | Symptoms | leaf symptoms |
| 0725065 | Symptoms | Ceratocystis fagacearum in red oak (probably northern pin oak Quercus ellipsoidalis) surrounding a new house in Minnesota. (It was probably the pruning of trees during the building of the house that allowed oak wilt to enter the stand. |
| 0725090 | Symptoms | Wilted branch on northern pin oak (Quercus ellipsoidalis) in Minnesota. |
| 0725091 | Symptoms | Northern pin oak (Quercus ellipsoidalis) killed by Ceratocystis fagacearum in Minnesota. The retention of some dead leaves is characteristic of the disease. |
| 0725092 | Symptoms | Xylem of red oak affected by Ceratocystis fagacearum showing diffuse stain (often there is less stain than this). |
| 0725093 | Fruiting Bodies | Sporulating mat on red oak killed by Ceratocystis fagacearum. |
| 0758071 | Symptoms | Group of dead Texas live oaks killed by oak wilt |
| 0758073 | Infestation | Oak 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. |
| 1301020 | Symptoms | Vertical cracks in bark caused by pressure pads. |
| 1301033 | Symptoms | Oak wilt in a young group of pin oaks |
| 1301040 | Control | Vibratory plow used for disruption of root grafts to control oak wilt. |
| 1301059 | Symptoms | Oak wilt pocket in urban landscape |
| 1406093 | Symptoms | |
| 1458010 | Control | treating with Tordon |
| 1458013 | Symptoms | bark cracking form pressure cushion |
| 1473272 | Symptoms | one week after early symptoms had appeared. Rapid leaf fall is characteristic; 7/14/1953 |
| 1501034 | Symptoms | Oak wilt, vascular streak |
| 1501035 | Control | Oak wilt, trenching at Whiskey Canyon Ranch to eliminate root grafts |
| 1501036 | Control | Oak wilt, ditch-witch trench at the LBJ Ranch to eliminate root grafts |
| 1501037 | Control | Oak wilt, trenching at Whiskey Canyon Ranch to eliminate root grafts |
| 1501038 | Control | Oak wilt, trenching at Whiskey Canyon Ranch to eliminate root grafts |
| 1501039 | Sign | Oak wilt, old (6 mos +) pressure pad on live oak |
| 1501040 | Feature(s) | Oak wilt may move through root grafts between trees similar to this live oak root grafting |
| 1501041 | Symptoms | Oak wilt, Texas red oak leaf symptoms |
| 1501042 | Symptoms | Oak wilt, Texas red oak leaf symptoms |
| 1501043 | Symptoms | Oak wilt, Texas red oak leaf symptoms |
| 1501044 | Symptoms | Oak wilt, Live oak leaf symptoms |
| 1501045 | Symptoms | Oak wilt, Live oak leaf symptoms |
| 1501046 | Symptoms | Oak wilt, Live oak leaf symptoms |
| 1501047 | Symptoms | Oak wilt, Live oak leaf symptoms |
| 1501048 | Symptoms | Oak wilt, Live oak tree symptoms |
| 1501050 | Symptoms | Oak wilt, Live oakbranch showing symptoms |
| 1501051 | Field | Oak wilt, infra-red photo |
| 1501053 | Symptoms | Oak wilt, V.A.Cemetary |
| 1501054 | Infestation | Oak wilt center |
| 1501055 | Infestation | Oak wilt center, Kerrville State Park |
| 1501056 | Symptoms | Oak wilt kill in pasture, S. of Kerrville |
| 1501057 | Symptoms | Oak wilt, live oak, Kerrville State Park |
| 1501058 | Symptoms | Oak wilt, live oak, Kerrville State Park |
| 1501059 | Symptoms | Oak wilt, live oak, Kerrville State Park |
| 1509093 | Symptoms | Oak wilt |
| 1509094 | Symptoms | Oak wilt |
| 1509095 | Symptoms | Oak wilt |
| 1509096 | Symptoms | Oak wilt |
| 1509097 | Symptoms | Oak wilt |
| 1509098 | Symptoms | Oak wilt |
| 1509099 | Symptoms | Oak wilt |
| 1509100 | Infestation | Oak wilt |
| 1509101 | Symptoms | Oak wilt |
| 1949011 | Symptoms | Advanced stage of Ceratocystis fagacearum infection on oak: general view of wilted tree. |
| 1949012 | Symptoms | Foliar symptoms caused by Ceratocystis fagacearum on oak. |
| 1949013 | Symptoms | Foliar symptoms of Ceratocystis fagacearum on black oak (Quercus velutina) showing bronzing starting at the leaf apices and lobes, and a localized area of green tissue around the base of the midrib. |
| 1949014 | Fruiting Bodies | Mature mycelial mat of Ceratocystis fagacearum just under the bark of a wilted Quercus coccinea tree. |
| 2252003 | Symptoms | infected sapling |
| 2252004 | Symptoms | leaf symptoms |
| 2252005 | Symptoms | vascular streaking |
| 2252008 | Symptoms | bark crack over fungal mat |
| 2252009 | Sign | fungal mat |
| 2635026 | Sign | close-up view of fungal mat on peeled stem |
| 2912093 | Symptoms | on leaf. Near San Antonio, Texas during Southern Forest Insect Work Conference Field Trip. |
| 2912094 | Equipment | caterpillar pulling trench to disrupt root grafting, Southern Forest Insect Work Conference Field Trip, near Conly Ranch, Texas |
| 2912095 | Equipment | bulldozer pulling subsoiler to break root grafts. taken during Southern Forest Insect Work Conference Field Trip near San Antonio, Texas USA |
| 3036033 | Infestation | oak wilt at edge of woodland St. Paul, MN |
| 3037015 | Symptoms | southern Missouri |
| 3066036 | Feature(s) | transmission is mainly through root grafts |
| 3226026 | Symptoms | veinal necrosis |
| 3226027 | Symptoms | root graft |
| 3226028 | Feature(s) | root grafts |
| 3226029 | Symptoms | leaf symptoms |
| 3226030 | Symptoms | early symptoms on foliage |
| 3226031 | Infestation | infection centers - aerial view |
| 3226034 | Control | bulldozer trenching to break root grafting between infected and noninfected trees |
| 3226035 | Control | bulldozer trenching to break root grafting between infected and noninfected trees |
| 3227017 | Control | trenching for severing root grafts between infected and uninfected trees |
| 3227018 | Feature(s) | root grafts |
| 3227019 | Control | trenching for severing root grafts between infected and uninfected trees |
| 3227020 | Equipment | trenching machineused to seperate infested areas |
| 3227021 | Control | trenching for severing root grafts between infected and uninfected trees |
| 4213097 | Symptoms | leaf symptoms |
| 4213098 | Symptoms | leaf symptoms |
| 4213100 | Symptoms | old fungal mats |
| 4214001 | Feature(s) | close-up view of fungal mat on peeled stem |
| 4214002 | Symptoms | center of dead/dying trees |
| 4214003 | Symptoms | infection center |
| 4214004 | Symptoms | infection center |
| 4215058 | Display or Sign | billboard in Minnesota informing public |
| 4215059 | Infestation | mortality center of oak stand |
| 4215060 | Symptoms | rapidly wilting red oak |
| 4215061 | Symptoms | white oaks wilt over many years and may recover |
| 4215062 | Symptoms | vascular discoloration in red oak |
| 4215063 | Symptoms | vascular discoloration in white oak |
| 4215064 | Sign | spore mat which forms only in red oak group |
| 4215065 | Symptoms | foliar symptoms on bur oak |
| 4215066 | Symptoms | foliar symptoms on northern red oak |
| 5005031 | Management | Mauget Generation II microinjector; For injecting propiconizole fungicide for oak wilt prevention in central Texas |
| 5005032 | Symptoms | |
| 5005033 | Symptoms | interveinal necrosis |
| 5005034 | Symptoms | veinal necrosis |
| 5005035 | Symptoms | interveinal chlorosis |
| 5005036 | Symptoms | interveinal chlorosis |
| 5030068 | Equipment | Trenching machine used in establishing root graft disruption lines for oak wilt control. Exhibited during the forest pathology field trip of the American Phytopathological Society, 2003, near Shawano, WI. |
| 5030069 | Symptoms | Spore mat and pressure pad under the bark of oak-wilt killed tree. Jenny Juzwik is the person in the picture. |
| 5030070 | Display or Sign | Sign warning not to gather firewood, to prevent transfer of oak wilt, on Chequamegon-Nicolet National Forest. |
| 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. |
| 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. |
| 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. |
| 5030084 | Display or Sign | Oak wilt treatment site; Sign forbidding firewood gathering, to prevent spread of oak wilt. |
| 5030086 | Sexual Spore | spore pad |
| 5030087 | Symptoms | aerial photo |
| 5032025 | Symptoms | |
| 5032042 | Symptoms | Vertical cracks in oak killed by oak wilt, indicating the presence of spore mats under the bark. |
| 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 |
| 5034085 | People | Michigan DNR workshop on identifying and controlling oak wilt. |
| 5034086 | Display or Sign | oak wilt billboard |
| 5038013 | Feature(s) | Chalara anamorph |
| 5038014 | Culture | |
| 5038015 | Symptoms | staining in oak |
| 5038074 | Symptoms | Oak wilt crown symptoms. |
| 5039061 | Control | oak wilt control trench with trencher |
| 5039062 | Control | control trench |
| 5039063 | Symptoms | crack in bark |
| 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 |
| 5039080 | Symptoms | leaf symptoms |
| 5039081 | Symptoms | |
| 5039083 | Sexual Spore | spore mat |
| 5039084 | Symptoms | sprout symptoms |
| 5039087 | Control | trench line |
| 5039089 | Symptoms | wilting symptoms |
| 5039095 | Symptoms | expanding oak wilt pocket |
| 5039096 | Symptoms | aerial photo with highlighted pockets of oak wilt |
| 5039097 | Symptoms | aerial photo- small pocket of wilt |
| 5039098 | Symptoms | |
| 5039099 | Symptoms | trees in July |
| 5039100 | Symptoms | same trees in image number 5039099 one month later- August |
| 5040002 | Symptoms | crown symptoms |
| 5040010 | Symptoms | grafted roots |
| 5040017 | Survey | |
| 5040020 | Equipment | trencher |
| 5040023 | Control | tree injection |
| 5040024 | Control | tree injection |
| 5040025 | Control | Alamo fungicide set up |
| 5040027 | Control | herbicide application |
| 5040028 | Control | chopping to check the cambium |
| 5040033 | Sign | |
| 5042040 | Control | vibratory plow line; low impact |
| 5045006 | Symptoms | |
| 5045080 | Symptoms | crown symptoms |
| 5045081 | Symptoms | |
| 5045082 | Symptoms | oak wilt pocket |
| 5045083 | Symptoms | |
| 5046003 | Symptoms | tree with close-up of leaves |
| 5046017 | Symptoms | |
| 5055016 | Symptoms | |
| 5202057 | Symptoms | Active oak wilt pocket, early July, Eau Claire Co., WI |
| 5262015 | Symptoms | |
| 5265044 | Symptoms |
