Discovering and Exploring the Leaf-feeding Insects in Our Region

Pacific Northwest (PNW) Defoliators

Discovering and Exploring
the Leaf-feeding Insects in Our Region

Most of the leaf-eating insects on trees and shrubs in the region are moth caterpillars, also known as defoliators. The current information on this website covers the most common Puget Sound species and will expand to include additional areas and species. [More]

New Teacher's Resource!
(02/08/2009) Defoliator Lesson Plan

What's a defoliator
What's eating my plants?
Discover PNW Defoliators

Defoliators News
About This Site

last update 6/5/2014:

The Cherry Blossom Moth!

WSDA
Leaf shothole damage
Lilac leaf miner damage
Leaf folder damage
Leaf Roller Damage
Pupae
Caterpillar
Garden rose tortrix
Barred fruit tree tortix
Contact Us at Washington State University or Contact Us at Washington State Dept. of Agriculture