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Black, Sooty Coating (Branch)

Branch symptom in where a black, powdery substance is covering parts or all of a branch.

Black, Sooty Coating (Leaf)

Leaf symptom in where a black, powdery substance is covering part or all of the leaf.

Blister

A lesion or abscess on a leaf.

Blotches of Dead Tissue

Symptom in where parts of the leaf appear dead, withered, or decaying.

Broken Branches

Broken branches occuring within the canopy of a tree.

Brown Margin

Leaf symptom in where the margin or perimeter of the leaf blade appears to be turning brown.

Browning

Leaf deformity expressed by localized spread of yellow to brown colorations.

Circular Black Patches

Any sort of circular black splotch or patch occuring on the top or bottom surface of a leaf.

Curl

Leaf symptom where the leaf begins to wither and curl up.

Dark-colored Lesions

Any sort of abormal growths, splotches, or spots on a leaf appearing dark in color.

Defoliation

Term used to describe the removal or loss of leaves.

Deformity

Any significant morphological issue occuring on a leaf.

Discoloration

Any major unnatural color change occuring within a leaf.

Disfigurement

Specified leaf deformity that appears as if parts of the leaf are missing.

Epicormic Branching

Branch symptom where shoots arise from adventitious or dormant buds along a stem or branch.

Fungal Growth

Any type of obvious fungal fruiting body. Typically seen along the trunk or root collar.

Fungal Mats

More specified type of fungal growth. Typically large spreading fungal body along a trunk or stem of a tree.

Gall

Abnormal growths on a tree, especially on the trunk or branches. It can also occur on the tree leaves.

Gall (Leaf)

Abnormal growths on a tree, especially on the trunk or branches. It can also occur on the tree leaves.

Gall (Trunk)

Abnormal growths on a tree, especially on the trunk or branches. It can also occur on the tree leaves.

Gradual Die-back

Wording to describe gradual canopy death through spreading defoliation and loss of branches.

Holes (Branch)

Small cavities that penetrate the branch of a tree.

Holes (Trunk)

Small cavities that penetrate into the trunk of a tree.

Insect Chewing

Specified type of defoliation where leaves appear chewed or gnawed.

Larval Galleries

Meandering cavities and tunnel like features in trees made by insects.

Mining

Localized defolation of specific parts of a leaf.

Mushroom, Conk, or Fruiting Body

More specified fungal growth characterized by obvious growth of mushrooms or fungal fruiting bodies

Oozing Black Sap

Specified symptom in which very dark and black sap is oozing from a tree.

Oozing Sap

Symptom in which a tree is exuding or oozing sap.

Rotted Feeder Roots

Rotted Scaffold Roots

Sawdust

Material pushed out by insects as they bore into a branch, stem or trunk. Often seen near entry holes.

Sawdust (Branch)

Material pushed out by insects as they bore into a branch, stem or trunk. Often seen near entry holes.

Skeletonizing

Specified type of defoliation where the leaf appears to be reduced to its veins and midrib.

Sloughing Bark

Term used to describe the shedding and loss of bark on a tree.

Splitting Bark

Term used to describe the cracking or splitting of portions of a tree's bark.

Spots

Any sort of abnormal splotches or patches on a leaf.

Tents

Webbing structure created typically by various catepillar species.

Thinning

Gradual die-back of branch foliage that makes a tree appear to be withering.

Thinning Bark

Bark symptom where parts of the trunk appear to be withered or shriveled.

Veinal Necrosis

Specified form of leaf discoloration that appears around the veins or midrib of a leaf.

Webbing

Any webs present on parts of a tree.

White, Powdery Coating

Leaf smyptom in which a white, powdery substance covers parts of a leaf.

Wilt (Leaf)

Leaf deformity expressed by drooping or withered look of a leaf.

Wilting (Branch)

Branch deformity in which the structure of a branch appears weakened or reduced.

Witches Broom

Branch deformity where a density of shoots creates a leafy mass in the canopy of a tree.