Forestry Tree Disorders

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29 Terms

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aphid

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

<p>little green bugs usually clustered together. Causes small holes in leaves.</p>
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Asian Long-Horned Beetle

circular hole or bug with long antenna

<p>circular hole or bug with long antenna</p>
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Butt or Heart Rot

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

<p>The inside of the tree can rot. Sometimes bracket fungus grows on the outside of the tree.</p>
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Canker

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

<p>Oozing holes in the tree or large knots that form around the trunk of the tree.</p>
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chemical damage

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

<p>can also show itself as orange leaves (especially in cedar trees)</p>
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Cicada

short horizontal gashes in tree

<p>short horizontal gashes in tree</p>
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Climate injury

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

<p>Anything caused by wind, snow, flooding, ice/hail, dought, or other weather conditions.</p>
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Damping off

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

<p>Effects seedlings. Usually shown as a stem that can’t support the plant so it falls over.</p>
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Douglas fur tussock moth

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

<p>brown moth. fuzzy caterpiller. eats the leaves from fir tree.</p>
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Emerald Ash Borer

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

<p>Shiny green bug that creates squiggles under the bark of the tree.</p>
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Fir engraver beetle

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

<p>long horizontal line with a bunch of mini lines coming out from it. Small beetle</p>
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fire damage

Tree is burnt

<p>Tree is burnt</p>
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Gypsy moth/Spongy Moth

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

<p>White or grey moth and fuzzy caterpillar. Leaves spongy orange eggs on tree</p>
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Hemlock Woolly Adelgid

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Ips Engraver Beetle

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Landscape equipment damage

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Lightning damage

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mechanical damage

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mistletoe

green bush in top of tree.

<p>green bush in top of tree.</p>
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mountain pine beetle

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nematode

worm thing.

<p>worm thing.</p>
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rust

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Sawfly

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scale

scale like bumps on the tree

<p>scale like bumps on the tree</p>
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Spruce Budworm

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sunscald

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Tent Caterpillar

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Wetwood or slime flux

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Wildlife/Livestock Damage

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