Wooly Bear Caterpillar
Pyrrharctia isabella
low risk
insect
Overview
Iconic fuzzy caterpillar often found crossing roads in fall. Causes minor garden damage. Adults are Isabella tiger moths.
Caterpillar with black ends and rust-brown middle band. Stiff bristly hairs all over. 50mm when mature.
Prevention Strategies
- •No control needed
Control Methods
- •No control needed - harmless
Interesting Facts
- •Folklore says width of brown band predicts severity of upcoming winter - no scientific basis but fun tradition
- •Can survive being completely frozen solid (cryoprotectants in blood)
- •The fuzzy hairs can cause mild skin irritation
- •One of the most recognizable caterpillars in North America