Decay

Tree Defects: Decay

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Image	Subject Name	Scientific Name	Description
5375363	people		Demonstration of a resitance-recording drill being used.
5375366	risk tree		Resistance-recording drill in use.
5375368	risk tree		Here you can see the thin drill bit of a resistance-recording drill.
5375367	risk tree		Up close view of a resistance-recording drill against the tree.
5375365	risk tree		Resistance-recording drills are an advanced drilling tools that measure the resistance over the distance drilled, which allows for fairly effective decay detection. However, like all decay detection methods, this equipment still have limitations.
5454773	cracks or splits
5454650	sulfur shelf	Laetiporus sulphureus
5454651	trunk rot	Ustulina deusta
5454648	weeping conk	Inonotus dryadeus
5454649	weeping conk	Inonotus dryadeus
5454619	dog vomit slime mold	Fuligo septica septica
5454647	Ganoderma root rots	Ganoderma spp.
5454646	Ganoderma root and butt rot	Ganoderma lucidum
5454645	artist's conk	Ganoderma applanatum
5454644	artist's conk	Ganoderma applanatum
5462882
5462881
5462880
5462879
5462876	decay
5462874
5462873
5462872
5462871
5462870
5462869
5462868
5462867
5462866
5462865			Note: Carpenter ant colony in bole.
5462864			Note: Carpenter Ant colony in bole.
5462862
5462861
5462860
5454581
5454772
5454771
5470503	decay
5470504	decay
5454878	basal wound		Mechanical wound at the trunk base.
5463669	turkey tail	Trametes versicolor
5463668	northern tooth	Climacodon septentrionalis
5454580	northern tooth	Climacodon septentrionalis
5454768	decay		Basal cavity.
5454767	decay		Basal cavity.
5454770	decay
5454606	decay		Basal decay with girdling roots?.
5454605	decay		Basal decay with girdling roots.
5454604	decay		Basal decay with girdling roots.
5454603	decay		Basal decay with girdling roots.
5454602	decay		Basal decay with girdling roots.
5454766	decay
5454948	decay		Codominant stems failure .
5462125	decay
5462124	decay
5439696	visual tree inspection
5439695	visual tree inspection
5439686	visual tree inspection
1408075	decay		Some hazards are obvious.
1408074	decay		Examine trees for indicators of internal problems when they are positioned where they could fall and damage property or injure people.
5394756	decay		Physical damage to the base of the tree probably caused by lawnmowers/trimmers.
5047024	decay		Severe decay in a willow.
5053048	risk tree		White birch with decay and defects overlooking a playground.
5053049	decay		Oak tree with decay resulting from death of codominant stem.
5053050	risk tree		American beech shedding branches; bole with extensive decay.
5038093	risk tree		Hole in very large branch, indicating decay.
5252048	risk tree		Hole in tree, indicating decay.
5054023	risk tree		A large tree with extensive decay that failed in a campground
5039090	risk tree		Old broken branch with decay
5055038	risk tree		Long crack and decay
5375299	basal wound		Excellent indication of internal decay.
5375300	basal wound		Large hole at the base.
5375288	decay		Large internal/external decay on the trunk.
5375293	basal wound		Cavity near the base.
5375298	basal wound		Sign of decay with minimal root flare.
5375240	decay		Large cavity and decay at the base of a standing tree.
5375265	decay		Decay indications.
5411257	basal wound		wounding at base of tree has lead to decay and an internal hollow that allows for a view through the base of the tree. Umbrella placed through tree for emphasis
5411256	basal wound		wounding at base of tree has lead to decay and an internal hollow that allows for a view through the base of the tree; person looking through cavity
5411255	basal wound		wounding at base of tree has lead to decay and an internal hollow that allows for a view through the base of the tree
5298092	decay
5252011	decay		Decay in a cottonwood that failed during a windstorm.
5050080	basal cankers		Large oak tree with basal opening and severe decay.
5050081	decay		Decay column in red maple.
5051051	wood decay		Examining dissected tree for decay
5044038	decay		Extensive decay in a tree that collapsed during a windstorm.
5052056	decay		Tree with green crown, but extensive decay in the bole.
5052057	decay		Tree with a green crown, but extensive decay in the bole.
5052058	decay		Tree with a green crown, but extensive decay in the bole.
5052059	decay		Tree with green crown, but extensive decay in the bole.
5052060	decay		Tree with green crown, but extensive decay in the bole.
5052061	decay		Tree with green crown, but extensive decay in the bole.
5052062	decay		Tree with green crown, but extensive decay in the bole.
5052063	decay		Tree with green crown, but extensive decay in the bole.
5053037	risk tree		Multiple defects (cracks, decay, poor branch angles) in a yard tree.
5053053	decay		Small tree with decay that failed near a parking lot.
5053054	risk tree		Large tree with multiple defects, including cracks, decay, dead branches.
5053055	deadwood and snags		Tree snag with decay and den hole. Not a hazard because there is no target.
5044079	decay		Tree with basal decay and hole, allowing water to enter.
5044080	risk tree		Sealed-over crack with decay.
5044081	risk tree		Hazard tree crack with sawdust at base of tree, indicating decay.
5042076	Armillaria root rots	Armillaria spp.	signs of armillaria visible in recent crack
5044033	Eutypella canker	Eutypella parasitica
5037090	Eutypella canker	Eutypella parasitica
5038009	Eutypella canker	Eutypella parasitica
5034063	Eutypella canker	Eutypella parasitica	A large Eutypella canker on Norway maple.
5394947	decay
5394946	decay		white mycellia in cavity of tree
5298061	decay		Large tree with old branch failure.
5298062	decay		Old, poorly sealing branch failure.
5298016	decay		Sawdust at base of tree, indicating internal decay.
5298017	decay		Decay at base of bole, in campground.
5298018	decay		Decay in stump from old codominant stem.
5298019	decay		Decay and piliated woodpecker injury.
5298021	trunk rot	Pholiota populnea	Tree with internal decay, and Pholiota destruens fruiting body in cavity.
5298022	decay		Failed branch attached to decaying codominant stem.
5298023	decay		Failed branch with severe decay.
5298024	clinker polypore	Inonotus obliquus	Decay and sterile conks produced by Inonotus obliquus.
5298025	decay		Failed decayed branch.
5298026	decay		Hole in tree from decayed branch drop-out.
5298027	decay		Hole in tree from decayed branch drop-out.
5298028	decay		Hole in tree from decayed branch drop-out.
5298029	decay		Cavity and decay in bole, with abundant epicormic branching.
5298030	decay		Discoloration and decay in branch trace and stem, cross-section.
5298032	decay		Stump with extensive internal decay.
5298034	pileated woodpecker	Dryocopus pileatus	Piliated woodpecker injury on bole of tree.
5298035	woodpeckers		Extensive decay and woodpecker damage on dead bole.
5298036	pileated woodpecker	Dryocopus pileatus	Pileated woodpecker injury.
5298037	pileated woodpecker	Dryocopus pileatus	Pileated woodpecker injury on bole.
5298038	sapsucker injury		Sapsucker injury on face of injured bole.
5298039	woodpeckers		Holes in bole caused by woodpeckers.
5298041	decay		Hole through tree caused by internal decay. Jana Albers is the person.
5298042	decay		Large open cavity and decay in bole of large tree.
5298044	decay		Extensive decay in bole.
5298045	decay		Extensive decay in bole (cross-section).
5298046	decay		Extensive decay and branch failure.
5298047	decay		Open cavity and decay at base of bole. Peter Bedker, Peggy Sand
5298048	decay		Tree with scar from large decayed branch failure.
5298049	decay		Sawdust and woodchips at base of decayed tree.
5298050	decay		Opening at base of tree signifying internal decay.
5298051	Armillaria root rots	Armillaria spp.	Decay and mycelial wefts on decayed, failed tree caused by Armillaria sp.
5298052	Armillaria root rots	Armillaria spp.	Broken bole, decay and mycelial wefts caused by Armillaria sp.
5298058	decay		Brown cubical rot at base of dead tree.
5298059	decay		Large cavity and decay at base of standing tree.
5298060	deadwood and snags		Snag with decay and large hole.
5298063	deadwood and snags		Large tree with dead wood in crown, multiple burls and decay. Tom Eiber and Peggy Sand in image.
5298064	decay		Cross section showing extensive decay of heartwood, but showing good compartmentalization.
5298065	decay		Cross section with decay and carpenter ant tunnels.
5298066	decay		Cross section with extensive decay and carpenter ant tunnels.
5298067	Armillaria root rots	Armillaria spp.	Rhizomorphs and mycelial wefts of Armillaria sp.
5298068	decay		Hole in tree with extensive decay and cavity.
5298069	decay		Tree with wound caused by lightning, and associated woodpecker injury.
5298070	decay		Branch decay resulting from improper maintenance (topping)
5298072	clinker polypore	Inonotus obliquus	Sterile conk of Inonotus obliquues and substantial decay (cross section)
5298074	basal wound		Basal wound with discolored wood
5037100	decay		Branch failure in a large tree.
5038001	decay		Branch failure in a large tree.
5043009	decay		Codominant branch failure.
5038026	decay		Collapsed crown caused by decay and high winds.
5048042	included bark		Codominant branch failure and bark ripping caused by included bark.
5048043	included bark		Major branch failure caused by codominant branching with included bark, and decay.
5048046	included bark		Codominant branch failure with included bark and decay.
5251059	decay		Basal decay in oak; cause unknown.
5048060	poor architecture		Poor architecture and decay arising from improper maintenance.
5048061	included bark		Codominant branching and included bark.
5043003	decay		Box elder with extensive decay. Failed in a windstorm.
5043004	decay		Box elder with extensive decay. Failed in a windstorm.
5043005	decay		Box elder with extensive decay and very little sound wood. Failed in a windstorm.
5038004	decay		Dead tree with extensive decay; failure near road.
5043016	decay		Cottonwood with extensive decay, failed in a windstorm.
5298011	decay
5298013	Compartmentalization Of Decay In Trees (CODIT)
5298014	Compartmentalization Of Decay In Trees (CODIT)
5034068	decay
5034083	decay		Large, dead, decayed white pine. Martin MacKenzie provides scale.
5034033	mountains		PICUS sonic tomography for detecting decay in trees.
5375229	decay		Severely decayed stem
1407063	electrical conductivity meter		They also use devices like this electric meter, which measures a tree's vitality and detects decay. Shigometer
2187071	Ganoderma root and butt rot	Ganoderma lucidum
5037075	decay		Green ash with central stem decay. This open-grown green ash tree failed in a windstorm.
5367244	bacterial wetwood	Enterobacter nimipressuralis	Cottonwood tree showing symptoms of infection with bacterial wetwood.
5357468	slime mold	Lycogala spp.	The sporulation of the Lycogala spp. on a tree.
5366921	white heartwood rot	Phellinus tremulae	Conk of Phellinus tremulae on the trunk of an aspen.
5366920	white heartwood rot	Phellinus tremulae	Conks of Phellinus tremulae on the trunks of aspen trees.
5366919	oyster mushroom	Pleurotus ostreatus	Oyster mushroom (Pleurotus ostreatus) on the trunk of a boxelder tree (Acer negundo).
5367243	bacterial wetwood	Enterobacter nimipressuralis	An American elm tree (Ulmus americana) showing symptoms of bacterial wetwood (slime flux) on the campus of Colorado State University.
5367240	bacterial wetwood	Enterobacter nimipressuralis	American elm tree showing evidence of infection with bacterial wetwood, or slime flux.
5357469	decay		The fruiting bodies of a decay fungus on a dead tree.
5037091	decay		This is a dead red pine, approximately 30' tall. The hazard is from potential kick-back when people dig at the lower part of the bole.
5048058	canker
5049057	canker
5043017	decay		Broken tree with root rot
5191062	decay		decay in pine
5191063	decay		decay in pine
5191066	decay		decay in pine
5291098	decay		heart wood decay evident
5291093	stubs		Stubs provide not only an entry point for decay organisms but also a food source. Large stubs only serve to feed the fungi decaying the wood
5033004	decay		This tree has severe decay and extremely poor architecture, and is a very high hazard.
5033005	decay		A badly decayed and hazardous silver maple.
1503071	canker		Heart rot; hardwoods; cankering at base
1503072	decay		Heart rot; hardwoods; butt bulge shows the extent
1503073	decay		Stump rot
1503075	decay		Jump butt; Bent Creek
1503078	decay		Heart rot; oak; x-sect of previous stump
1503079	ceramic parchment	Xylobolus frustulatus	Heart rot; Stereum frustulosum
1503081	false turkey tail	Stereum gausapatum	Heart rot; Stereum gausapatum
1503082	false turkey tail	Stereum gausapatum	Heart rot; Stereum gausapatum
1503083	false turkey tail	Stereum gausapatum	Heart rot; Stereum gausapatum
1503084	false turkey tail	Stereum gausapatum	Heart rot; Stereum gausapatum
1503087	Armillaria root rots	Armillaria spp.	Armillaria root rot
1503090	Irpex canker	Spongipellis pachyodon	Heart rot; Irpex mollis
1503091	red heart of pine	Phellinus pini	Heart rot; Fomes pini; Va. Pine
1238006	decay		Heart rot cross-section showing inner branching
1238007	decay		Heartwood rot (Ram's horn)
3047015	decay		cut logs showing hollowing; heartrot
5191067	decay		The base of the tree has had substantial decay and it is possible to see through the base
1484017	yellow cap fungi	Pholiota spp.
1484018	yellow cap fungi	Pholiota spp.
1484019	yellow cap fungi	Pholiota spp.
1484020	yellow cap fungi	Pholiota spp.
5029006	decay		Severe decay in butt of red oak. Causal agent unknown.
5026008	tree implants		Old capsules found in cross-section after tree was removed. Notice the peculiar pattern of decay surrounding the implants. Cross-sections provided by Dan Veresh.
5026009	tree implants		Old capsules found in cross-section after tree was removed. Notice the peculiar pattern of decay surrounding the implants. Cross-sections provided by Dan Veresh.
5026010	tree implants		Old capsules found in cross-section after tree was removed. Notice the peculiar pattern of decay surrounding the implants. Cross-sections provided by Dan Veresh.
5026011	tree implants		Old capsules found in cross-section after tree was removed. Notice the peculiar pattern of decay surrounding the implants. Cross-sections provided by Dan Veresh.
5026012	tree implants		Old capsules found in cross-section after tree was removed. Notice the peculiar pattern of decay surrounding the implants. Cross-sections provided by Dan Veresh.
5177089	decay		tree with a large hollow along a city street
5177090	decay		close-up of large hollow along a city street
5177096	stubs		leaving stubs can provide a route of entry for decay fungi especially on large limbs. Note the orange-yellow fruiting bodies on the underside of the limb.
1408049	flush cut		Fruit bodies of fungi often burst through wound dressings. This is a sure sign of decay, which can be stimulated by too much dressing.
1408059	Compartmentalization Of Decay In Trees (CODIT)		Trees can wall off wounds effectively, but as damage accumulates over time, internal columns of infected wood begin to merge. This happens even with small wounds,
1407074	decay		brown cubical rot
1408076	root problems		Other trees look safe, but have a weak root system. Always check for root decay when making a hazard tree inspection.
1408077	decay		Fungus fruit bodies on old branch cuts are reliable indicators of internal decay.
1409005	Compartmentalization Of Decay In Trees (CODIT)		Patterns of discolored and decayed wood could be studied on both longitudinal and crosscut surfaces.
1409006	Compartmentalization Of Decay In Trees (CODIT)		Since 1959 thousands of trees have been dissected and studied this way.
1409012	Compartmentalization Of Decay In Trees (CODIT)		Hollows are found in trees that have heartwood
1409013	Compartmentalization Of Decay In Trees (CODIT)		Hollows are found in trees that have heartwood
1409014	Compartmentalization Of Decay In Trees (CODIT)		The same patterns of compartmentalization occur in roots.
1409019	Compartmentalization Of Decay In Trees (CODIT)		CODIT is a model that applies to both non-heartwood and heartwood-forming trees
1409020	Compartmentalization Of Decay In Trees (CODIT)		This white oak had five basal wounds. The triangular-shaped discolored and decayed wood was formed by walls 2 and 3 which resisted spread, and wall 4 which separated infected wood from healthy wood.
1408038	flush cut		you will later see an obvious early warning sign of decay -- a dead spot at the base of the cut.
1408039	flush cut		Decay spreads rapidly from dead spots. No amount or type of wound dressing will help.
1408040	flush cut		The size of the callus is not related to the decay process but depends on how rapidly the tree grows after pruning. All too often, big callus rings belie the presence of decayed wood or hollows inside.
1408042	decay		Fluids oozing from almost-closed wounds indicated internal problems. This English oak is 4 feet in diameter. The callus collar is very large, as is the internal column of decayed wood.
1408010	decay		Cavities often fill with water. Do not drill holes to drain the water or decay will spread into the surrounding wood.
1407034	decay		Giant redwoods are no more immune to injury than the most auuaulted city tree; fruiting bodies on the exterior of the tree are cleas signs of internal decay
1407038	decay		Striped of large sections of bark, a tree dies. Fungi soon invade; fruiting bodies on the trunk of a tree are a clear sign of decay
1397043	poor architecture		poor architecture combined with decay
1397053	decay		This tree had extensive decay, with very little sound wood shell.
1397054	decay		Tree with extensive decay failed in a windstorm.
1397059	decay		Dead tree failure at roots, causing property damage.
1397064	decay
1397065	decay		Badly decayed oak tree failure at lower trunk.
1397073	decay		Tree failure from root and butt decay in campground
1397087	decay		Bur oak with decay and large cavity.
1397088	decay		sawdust and chips at base of tree, indicating decay.
1397091	decay		tree with extensive decay: note shell thickness

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Tree Defects: Decay