Forest Insect & Disease Leaflets

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FIDL logoFIDL Facts   (updated July 7, 2013)



Galleries created by Douglas-fir beetle larvae

Douglas-fir Beetle

FIDL #181

Douglas-fir needle infected with the fungus that causes Swiss needle cast

Swiss Needle Cast


FIDL #182

Fall Cankerworm

FIDL #57

adult pine tortoise scale

Pine Tortoise Scale

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