Forestry Tree Disorders

aphid

little green bugs usually clustered together. Causes small holes in leaves.

Asian Long-Horned Beetle

circular hole or bug with long antenna

Butt or Heart Rot

The inside of the tree can rot. Sometimes bracket fungus grows on the outside of the tree.

Canker

Oozing holes in the tree or large knots that form around the trunk of the tree.

chemical damage

can also show itself as orange leaves (especially in cedar trees)

Cicada

short horizontal gashes in tree

Climate injury

Anything caused by wind, snow, flooding, ice/hail, dought, or other weather conditions.

Damping off

Effects seedlings. Usually shown as a stem that can’t support the plant so it falls over.

Douglas fur tussock moth

brown moth. fuzzy caterpiller. eats the leaves from fir tree.

Emerald Ash Borer

Shiny green bug that creates squiggles under the bark of the tree.

Fir engraver beetle

long horizontal line with a bunch of mini lines coming out from it. Small beetle

fire damage

Tree is burnt

Gypsy moth/Spongy Moth

White or grey moth and fuzzy caterpillar. Leaves spongy orange eggs on tree

Hemlock Woolly Adelgid

Ips Engraver Beetle

Landscape equipment damage

Lightning damage

mechanical damage

mistletoe

green bush in top of tree.

mountain pine beetle

nematode

worm thing.

rust

Sawfly

scale

scale like bumps on the tree

Spruce Budworm

sunscald

Tent Caterpillar

Wetwood or slime flux

Wildlife/Livestock Damage