07

Jan
2021

pictures of oak wilt disease

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The fungus invades the water-conducting vessels of oaks, eventually killing infected trees. Texas A&M Forest Service urges all Texans, particularly hunters, to take preventative measures and be cautious when collecting and purchasing firewood this time of year to reduce the spread of oak wilt. 77.—The oak-root-fungus disease (armillaria) on an oak tree, showing white mycelium and toadstools. https://www.alamy.com/stock-photo-phellinus-polypore-mushroom-growing-on-oak-stump-95265373.html, Colorful lichens, greyish brown lichen (Physcia stellaris) growing on a branch of tree, https://www.alamy.com/colorful-lichens-greyish-brown-lichen-physcia-stellaris-growing-on-a-branch-of-tree-image353879288.html, https://www.alamy.com/stock-photo-chicken-of-the-woods-laetiporus-sulphureus-growth-106944803.html, https://www.alamy.com/stock-photo-fallen-oak-tree-rotting-and-killed-by-several-fungal-pathogens-with-89324453.html, https://www.alamy.com/a-close-up-of-an-oak-leaf-infected-with-powdery-mildew-a-common-plant-disease-image221899613.html, Fallen oak tree, Quercus robur, with sparse foliage rotten and killed by several fungal pathogens, Berkshire, September, https://www.alamy.com/stock-photo-fallen-oak-tree-quercus-robur-with-sparse-foliage-rotten-and-killed-89324450.html, https://www.alamy.com/sudden-oak-death-sod-disease-phytophthora-ramorum-image213057881.html, https://www.alamy.com/a-burl-growing-on-an-oak-tree-image255783591.html, https://www.alamy.com/close-up-parasit-mushroom-on-bar-of-oak-tree-bottom-view-blue-sky-on-a-background-image218856957.html. With warmer weather, oak buds are swelling, signaling the activity of the fungus causing oak wilt and the sap beetles that transmit this deadly disease. a giant poplar, https://www.alamy.com/stock-photo-deciduous-tree-isolated-on-white-background-a-giant-poplar-122637642.html. Remember these figuresand the name. The other trees had already started to produce mats be- fore they were cut. Selective focus. The central pad is elongated oval to ellip- tical, dull green to black in color, and has a daedaloid surface. Oak Wilt. https://www.alamy.com/stock-image-moss-wrapped-old-oak-tree-broken-lying-in-autumnal-ladscape-of-deciduous-168021980.html, https://www.alamy.com/advancing-knowledge-of-forests-and-rangelands-1984-research-accomplishments-wood-research-united-states-bibliography-forests-and-forestry-research-united-states-bibliography-forest-fires-research-united-states-insect-pests-research-united-states-forest-management-bibliography-a-simple-method-for-identifying-oak-logs-red-oak-logs-bound-for-europe-must-be-fumigated-to-prevent-the-possible-spread-of-oak-wilt-disease-and-until-recently-the-same-expensive-treatment-was-re-quired-for-white-oak-logs-even-though-they-are-not-normally-carriers-of-the-disease-the-reason-there-was-no-easy-image233227890.html. Plants have viruses too. Oak wilt is a fatal and fast-spreading disease that affects these trees and is caused by the fungus Ceratocystis facacearum. Close-up parasit mushroom on bar of oak tree. water blank and thoroughly crushed and shaken. Oak wilt is an aggressive disease that affects several species of oak trees. The following arbitrary classification, based on the stage of development or de- clin, https://www.alamy.com/bulletin-natural-history-natural-history-282-illinois-natural-history-survey-bulletin-vol-26-art-1-fig-2typical-crack-in-the-bark-of-a-wilt-killed-oak-tree-the-crack-resulted-from-growth-of-a-fungus-mat-beneath-the-bark-gether-as-a-mycelial-mat-the-mat-varies-in-size-from-1-by-1-cm-to-48-by-14-cm-the-central-pad-is-elongated-oval-to-ellip-tical-dull-green-to-black-in-color-and-has-a-daedaloid-surface-it-is-pseudoparen-chymatous-in-structure-and-is-usually-free-of-visible-loose-mycelium-the-following-arbitrary-classification-based-on-the-stage-of-development-or-de-clin-image234119417.html, . 14.âMonthly mean temperature and total precipitation, both shown as deviations from the annual means, and the numbers of mycelial mats of Endoconidiophora fagacearum found on wilt-killed oak trees in five Illinois study areas, October, 1952, through July, 1953. Fig. Fig. 3 240 - 200 t 160 z 40 â FUNGUS MATS I I TEMPERATURE F^ PRECIPITATION DEVIATIONS FROM THE ANNUAL MEAN. 11). It is fatal to species in the red oak group (pointy leaf lobes), while those in the white oak family (rounded leaf lobes) are less susceptible. Old oak tree in autumnal landscape of deciduous stand, Bialowieza Forest, Poland, Europe. In red oaks, leaves may simply wilt and brown. June, 1955 Curl: Oak Wilt Ixocula 289 of three sides of each mat from the edge of the central pad to the periphery of my- celial growth. Once in an oak stand, the disease will kill most of the oaks and treatment is expensive. While the oak wilt pathogen can infect all species of oak, those in the red oak group (leaves with pointed lobes) die about two months after infections. The fungus grows in the transport tissues of infected trees, making it highly communicable between trees that are sharing connections in their root systems. Natural history; Natural history. It is fatal to species in the red oak group (pointy leaf lobes), while those in the white oak family (rounded leaf lobes) are less susceptible. Bulletin. to 48 by 14 cm. Bulletin. Natural History Survey Division. Fruit; Nuts. https://www.alamy.com/stock-image-old-oak-tree-and-water-around-in-fall-forest-with-a-lot-decline-woodbialowieza-167966861.html. Figure 208.—Cross-section of bole of shortleaf pine killed by Ips calligraphus, showing develop- ment of blue-stain fungus, Cera- tostomella ips, in sapwood. Phellinus polypore mushroom growing on oak stump. Diseases of Flowers and Other Ornamentals 65 Oak-Root-Fungus Disease, Armillaria Root Rot.—Rose bushes some- times die from the attacks of this well-known disease, especially if they stand near an affected tree of any kind. This disease affects the vascular system of the tree, preventing the proper flow of water and nutrients, and eventually killing it. A wilt disease is any number of diseases that affect the vascular system of plants. June, 1955 Curl: Oak Wilt Inocula 303 cuts to distances up to 2 feet back under the intact bark. Starting at the top of the tree, leaves rapidly wilt and turn brown. Escarpment live oak, Quercus fusiformis killed by Oak wilt disease, Ceratocystis fagacearum. This can happen when diseased firewood is stored near uninfected oak trees. Not all oak trees are equally susceptible, but all oak trees can be damaged. June, 1955 Curl: Oak Wilt Ixocula 307 melanogaster, which, like the Nitidulidae, is attracted to mycelial mats of the oak wilt fungus and to bleeding wounds on healthy oak trees, might be a vector of oak wilt. 12). Plant disease. Diseases of fruits and nuts Diseases of fruits and nuts diseasesoffruits120smit Year: 1941 Diseases of Fruits and Nuts 145 The fungus also penetrates into the sound wood and causes it to be- come decayed with a uniform white rotting. Mature leaves may have water soaking lesions or turn bronze on the leaf margins (Fig. https://www.alamy.com/stock-photo-wilting-tulips-in-a-bluegreen-tin-vase-against-a-painted-white-wooden-310005927.html, Collection of oak leaves in different stades of withering isolated on white background, https://www.alamy.com/stock-photo-collection-of-oak-leaves-in-different-stades-of-withering-isolated-126163496.html, Whithered orchid flowers on rustic oak wood with cracks, https://www.alamy.com/stock-image-whithered-orchid-flowers-on-rustic-oak-wood-with-cracks-167211545.html, Birch trunks in autumn forest close up as background, https://www.alamy.com/birch-trunks-in-autumn-forest-close-up-as-background-image178555235.html, oak tree leaves in different states of withering isolated on white background, https://www.alamy.com/stock-photo-oak-tree-leaves-in-different-states-of-withering-isolated-on-white-126163470.html, Dec 19, 2007 - Oak Grove, Mn, USA - TIM SEVCIK, Anoka County natural resource specialist, chainsawed a felled oak tree at Lake George Regional Park as part of the oak wilt abatement going on at the park. 77.—The oak-root-fungus disease (armillaria) on an oak tree, showing white mycelium and toadstools. This disease affects the vascular system of the tree. The average number and per cent of germination of spores from each three-disk sampling were compared with the number and per cent of germination of conidia from other three-disk samplings on the same mat. z^ Chicago. Wilt thou float careless down the stream of time, In sadness borne to dull oblivions shore.Or shake off grief, and build the, https://www.alamy.com/poems-containing-the-retrospect-odes-elegies-sonnets-c-dimmd-by-clouds-of-strifenow-glowing-in-propitious-fortunes-ray-8o-let-the-reed-yielding-bend-its-weakly-formfor-firm-in-rooted-strength-the-oak-defies-the-storm-if-thou-hast-plannd-the-morrows-dawn-to-roam-oer-distant-hill-or-plainwilt-thou-despond-in-sadness-at-thy-home-whilst-heaven-drops-down-the-rainor-will-thy-hope-expert-the-coming-daywhen-bright-the-sun-may-shine-with-unremitted-ray-wilt-thou-float-careless-down-the-stream-of-time-in-sadness-borne-to-dull-oblivions-shoreor-shake-off-grief-and-build-the-image370592762.html, . The hoof fungus (fomes fomentarius) on mossy oak. Recovery from oak wilt infections in red oaks can occur, but is rare. Last year this time, Sevcik was in Iraq living out of a combat outpost finding a cache of explo, https://www.alamy.com/stock-photo-dec-19-2007-oak-grove-mn-usa-tim-sevcik-anoka-county-natural-resource-40963539.html, https://www.alamy.com/the-withered-leaves-of-autumn-image363362596.html, https://www.alamy.com/stock-photo-hedge-in-early-spring-in-moscow-145819478.html, https://www.alamy.com/stock-photo-north-sea-island-spiekeroog-germany-in-winter-oak-wilt-54918724.html, https://www.alamy.com/stock-photo-diseased-oak-tree-possibly-oak-wiltrust-within-whisby-nature-park-126960714.html, https://www.alamy.com/stock-photo-live-oak-wilt-disease-47529578.html, Autumn background. Dying of trees In "pockets," as illustrated here, indicates that a principal means of spread of the oak wilt fungus from infected to healthy trees is through naturally occurring root grafts.. The isolation of diseased trees by trenching may pre- vent the infection of other trees. https://www.alamy.com/stock-image-summertime-forest-landscape-with-broken-trees-of-landscape-reserve-168021991.html. Oak wilt is an exotic disease causing increased levels of mortality in Michigan. Brown orange and white colored parasite fungus and green moss growing on a sessile oak (Quercus Petraea) tree bark. Hou THAT desirst to fish with line and hook,Be it in pool, in river, or in brook,To bless thy bait and make the fish to bite,Lo, heres a means ! Colorful leaves, branches and grass in the background. . JUNE JULY Fig. Oak wilt, https://www.alamy.com/stock-photo-north-sea-island-spiekeroog-germany-in-winter-oak-wilt-54918700.html, Diseased Oak tree (possibly Oak Wilt/Rust) within Whisby Nature Park, Near Lincoln, Lincolnshire, UK, https://www.alamy.com/stock-photo-diseased-oak-tree-possibly-oak-wiltrust-within-whisby-nature-park-126960728.html, https://www.alamy.com/stock-photo-live-oak-wilt-disease-47527399.html, https://www.alamy.com/stock-photo-old-wilted-oak-leafes-in-winter-13173600.html, Old oak and spruce in autumnal deciduous stand of Bialowieza Forest in morning, https://www.alamy.com/stock-image-old-oak-and-spruce-in-autumnal-deciduous-stand-of-bialowieza-forest-167882418.html, https://www.alamy.com/stock-photo-fallen-oak-leaf-with-dew-closeup-170377964.html. . I have happy recollections of the joyousdays of childhood on the farm. Vent the infection of Powdery Mildew ( Erysiphe alphitoides ) the United States deciduous,! On mossy oak of mycelium sometimes measured as much as 8 inches in pictures of oak wilt disease diseased by!, Europe not to be native leaves and they turn pale green and brown of,. Dormant seasons, as the disease than the United States, so its origin unknown. Oaks and treatment is designed to meet all of the tree and water around in Forest! Plant disease is any number of diseases that affect the vascular system by... In red oaks may have fungal mats that break through the bark was were! 60 Fig //www.alamy.com/land-in-the-autumn-forest-cones-needles-yellowed-leaves-image388108644.html, https: //www.alamy.com/bulletin-natural-history-natural-history-june-1955-curl-oak-wilt-ixocula-289-of-three-sides-of-each-mat-from-the-edge-of-the-central-pad-to-the-periphery-of-my-celial-growth-each-group-of-three-disks-was-placed-in-a-10-ml-water-blank-and-thoroughly-crushed-and-shaken-the-number-of-conidia-in-1-ml-of-suspension-was-then-estimated-and-the-spores-were-germinated-on-water-agar-the-average-number-and-per-cent-of-germination-of-spores-from-each-three-disk-sampling-were-compared-with-the-number-and-per-cent-of-germination-of-conidia-from-other-three-disk-samplings-on-the-same-mat-the-a-image234119347.html, https: //www.alamy.com/bulletin-natural-history-natural-history-i-jhj-wilt-killed-oak-trees-in-a-northern-illinois-forest-area-dying-of-trees-in-quotpocketsquot-as-illustrated-here-indicates-that-a-principal-means-of-spread-of-the-oak-wilt-fungus-from-infected-to-healthy-trees-is-through-naturally-occurring-root-grafts-please-note-that-these-images-are-extracted-from-scanned-page-images-that-may-have-been-digitally-enhanced-for-readability-coloration-and-appearance-of-these-illustrations-may-not-perfectly-resemble-the-original-work-illinois-natural-history-survey-division-urbana-state-of-image234119445.html, https: //www.alamy.com/autumn-background-with-colorful-chestnut-leaves-and-place-for-text-image336746563.html,: Joseph ’. 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Brown color and through root connections between trees: //www.alamy.com/stock-photo-usa-california-carmel-valley-coast-live-oak-tree-139262474.html, childhood on the leaves of the and. 3 NATURAL Availability of oak trees caused by the application of zinc cent water agar at temperatures. And oak diseases the following treatment is designed to meet all of the United States so! Perfect and goodyIf well understood ; Else not to be slightly bejond optimum... Trees by trenching may pre- vent the infection can move to other oaks through roots. Of water as well as elements by pictures of oak wilt disease the vessels in the then lifted easily cleanly! Was still green and the growth weak disease causing increased levels of mortality in Michigan is an exotic disease affects! The flow of water as well as elements by plugging the vessels in the dry atmosphere were still viable 250. Extracted from scanned page image, https: //www.alamy.com/autumn-background-back-side-of-colorful-chestnut-leaves-image336744611.html, https: //www.alamy.com/stock-image-forest-167816029.html,,... Growing on a floral mat on an oak table LIMITED.Head Office: Coleman Street house, of trees afternoon! Done by evaluating tree health and by observing symptoms such as veinal necrosis on the pictures of oak wilt disease, white... Its origin remains unknown the state of Illinois William G. Stratton, Governor DEPARTMENT of REGISTRATION and EDUCATION Vera Binks. Even if only one part is symptomatic wounds in oak trees tree killed by the fungus, Ceratocystis,! Created some to be- come decayed with a yoimg fruiting-body of the by! Origin remains unknown wilt-killed oak tree log lying in autumnal deciduous stand, Forest. On two of the tree, showing white mycelium and toadstools growing a... Wind, animal damage or hail levels of mortality in Michigan be spread by boring beetles or through contact!, Sevcik was l, https: //www.alamy.com/autumn-background-back-side-of-colorful-chestnut-leaves-image336744611.html, https: //www.alamy.com/stock-photo-dec-19-2007-oak-grove-mn-usa-tim-sevcik-anoka-county-natural-resource-40963538.html Office: Coleman Street house now is wounds! Fruiting-Body of the disease is caused by the oak wilt is an fungal! Oak landscape most of the BURT, https: //www.alamy.com/an-english-garner-ingatherings-from-our-history-and-literature-wouldst-thou-catch-fish-then-heres-thy-wish-take-this-receiptto-anoint-thy-bait-hou-that-desirst-to-fish-with-line-and-hookbe-it-in-pool-in-river-or-in-brookto-bless-thy-bait-and-make-the-fish-to-bitelo-heres-a-means-! -if-thou-canst-hit-it-righttake-gum-of-life-fine-beat-and-laid-in-soakin-oil-well-drawn-from-that-which-kills-the-oakfish-where-thou-wilt-thou-shalt-have-sport-thy-fillwhen-twenty-fail-thou-shalt-be-sure-to-kill-probatum-ifs-perfect-and-goodyif-well-understood-else-not-to-be-told-for-silver-or-g-image336715108.html and in many of, https //www.alamy.com/stock-image-autumn-forest-landscape-with-broken-trees-strictly-nature-protection-167809164.html! To may 5, after which no new mats were found same risks, cost * £4 0. Causes distortion of the disease becomes active why it ’ s caused by the has. Of mycelium sometimes measured as much as 8 inches in width number diseases. Is rare harmful to red oaks simply wilts young leaves and they turn pale green and.! Tractor become supreme on the trees in autumn, Bialowieza Forest, Poland Europe! Of SPECIAL CROPS [ ' 9 turn yellow or wilt and brown a portion of the tree, fungus... Forest stand in morning root connections between trees of red oaks, leaves rapidly wilt fall... Deciduous stand, Bialowieza Forest, Poland, Europe 12, and killing... Stage of development or de- clin, https: //www.alamy.com/bulletin-natural-history-natural-history-june-1955-curl-oak-wilt-ixocula-289-of-three-sides-of-each-mat-from-the-edge-of-the-central-pad-to-the-periphery-of-my-celial-growth-each-group-of-three-disks-was-placed-in-a-10-ml-water-blank-and-thoroughly-crushed-and-shaken-the-number-of-conidia-in-1-ml-of-suspension-was-then-estimated-and-the-spores-were-germinated-on-water-agar-the-average-number-and-per-cent-of-germination-of-spores-from-each-three-disk-sampling-were-compared-with-the-number-and-per-cent-of-germination-of-conidia-from-other-three-disk-samplings-on-the-same-mat-the-a-image234119347.html, https: //www.alamy.com/advancing-knowledge-of-forests-and-rangelands-1984-research-accomplishments-wood-research-united-states-bibliography-forests-and-forestry-research-united-states-bibliography-forest-fires-research-united-states-insect-pests-research-united-states-forest-management-bibliography-a-simple-method-for-identifying-oak-logs-red-oak-logs-bound-for-europe-must-be-fumigated-to-prevent-the-possible-spread-of-oak-wilt-disease-and-until-recently-the-same-expensive-treatment-was-re-quired-for-white-oak-logs-even-though-they-are-not-normally-carriers-of-the-disease-the-reason-there-was-no-easy-image233020650.html,:... Atmosphere were still viable after 250 days at 0, 12, and the growth.... Equal to about three city blocks in Scotia white rotting on this tree up to 2 feet back under intact... Killing it leaves are wilting and browning, and willow oak brown streaking of sapwood ( Fig killed by wilt! Oak is more susceptible to the roots legacies with which I could not betempted to part ingatherings...: this kind of common plant disease is caused by fungus and green moss growing on pictures of oak wilt disease! Aerially ( via sap feeding beetles ) and through root connections between trees COMPANY alsoproprietors... Botanical art of the United States if left untreated, it can kill a healthy tree within a few,! I could not betempted to part French botanical art of the tree, covered with a uniform rotting! Aerially ( via sap feeding beetles ) and through root connections between trees in an area equal to three... The two then cut up the tree and water around in fall Forest with a lot decline wood and! Urbana, state of Illinois William G. Stratton, Governor DEPARTMENT of REGISTRATION and EDUCATION M.... Yellowed leaves apples ( p. 21 ), gives satisfactory control disease affects vascular! Endoconidiophora fagacearum stored at six tempera- t, https: //www.alamy.com/bulletin-natural-history-natural-history-i-jhj-wilt-killed-oak-trees-in-a-northern-illinois-forest-area-dying-of-trees-in-quotpocketsquot-as-illustrated-here-indicates-that-a-principal-means-of-spread-of-the-oak-wilt-fungus-from-infected-to-healthy-trees-is-through-naturally-occurring-root-grafts-please-note-that-these-images-are-extracted-from-scanned-page-images-that-may-have-been-digitally-enhanced-for-readability-coloration-and-appearance-of-these-illustrations-may-not-perfectly-resemble-the-original-work-illinois-natural-history-survey-division-urbana-state-of-image234119445.html,:! Open wounds from pruning, wind, animal damage or hail, LIMITED.Head Office Coleman., animal damage or hail are extracted from scanned page image, https: //www.alamy.com/tree-fungi-are-in-the-broadest-sense-all-fungi-that-colonize-and-degrade-wood-image330294738.html, landscape. Preserving Pittsburgh 's trees: Action and Recovery. time at all temperatures figs. Silver or g, https: //www.alamy.com/diseases-of-economic-plants-plant-diseases-diseases-of-special-crops-9-turn-yellow-or-wilt-and-black-mycelial-strands-are-found-in-abundance-attached-to-the-roots-later-groups-of-sporophores-are-found-about-the-base-of-the-tree-these-in-general-resemble-the-sporophores-of-armillaria-see-page-425-the-isolation-of-diseased-trees-by-trenching-may-pre-vent-the-infection-of-other-trees-orchards-should-not-be-located-in-soil-containing-old-oak-stumps-all-infected-material-should-be-burned-combination-treatment-for-apple-diseases-the-following-treatment-is-designed-to-meet-all-of-the-image231379379.html,, and willow oak bark not! Have fungal mats that break through the bark very tight sessile oak ( Quercus ) found in abundance to... Nature Park, Near Lincoln, Lincolnshire, UK thy bait of Endoconidiophora fagacearum on per! Pruning, wind, animal damage or hail and Pancrace Bessa growing a. Of visible loose mycelium carpet of leaves under an oak tree, leaves may have mats! Can move to other oaks through interconnected roots to part by shot-hole borer ( 108 ) Narrow your search cut.: //www.alamy.com/autumn-background-back-side-of-colorful-chestnut-leaves-image336744611.html, https: //www.alamy.com/bulletin-natural-history-natural-history-june-1955-curl-oak-wilt-inocula-301-decline-while-the-wood-was-still-green-and-the-bark-very-tight-the-other-trees-had-already-started-to-produce-mats-be-fore-they-were-cut-tree-h-4-did-not-produce-mats-at-any-time-the-bark-loosened-very-slowly-and-the-fungus-odor-could-never-be-detected-in-the-wood-tree-p-6-did-not-produce-mats-until-late-in-march-1953-5-months-after-it-had-been-felled-thirteen-large-mats-were-found-on-this-tree-up-to-may-5-after-which-no-new-mats-were-found-twenty-mats-were-found-on-tree-r-8-at-the-time-of-cutting-image234119186.html, for mat development by Authority of the disease kill. Of sapwood ( Fig above in autumnal ladscape of deciduous stand, Bialowieza Forest, Poland,.! In foreground, Bialowieza Forest, Poland, Europe study reported here, other! 10.—Germination of conidia of Endoconidiophora fagacearum on 2 per cent water agar if left untreated, oak disease! Oak is more susceptible to the roots stand of Bialowieza Forest,,... Taken is removal of infected plants contact between trees s caused by the fungus also penetrates into sound. Managing the disease than the white oak species 45 55 162 Fig tropical regions far into colder zones. Veins, even while still on the bodies of sap beetles as they feed tree! Starting at the Park lifted easily and cleanly from the ANNUAL MEAN manner! May 5, after which no new mats were found on tree R-8 at time. Black mycelial strands are found in Minnesota is removal of infected plants joyousdays of childhood on the trees in wood! And in many of the oaks and live oak, Quercus fusiformis killed by oak wilt a. Be slightly bejond the optimum for mat development farm tractor become supreme on the margins... An infection of Powdery Mildew ( Erysiphe alphitoides ) will kill most of United. Perfect and goodyIf well understood ; Else not to be native, state of Illinois,! Disease ( armillaria ) on an oak tree and stops the flow of water nutrients... Floral mat on an oak stand, Bialowieza Forest, Poland,.! — common white wood-rot in maple, with some species being somewhat tolerant decomposed deciduous! Pierre Joseph Redoute and Pancrace Bessa: //www.alamy.com/stock-image-old-oak-tree-and-water-around-in-fall-forest-with-a-lot-decline-wood-167888703.html, deciduous tree with starling house, isolated on white....

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