Hickory Tussock Moth Caterpillars
What are Hickory Tussock Moth Caterpillars?
The Hickory Tussock Moth Caterpillar is white, fluffy caterpillar with distinct black chain-like markings on its back. It also has long black hairs that protrude from areas near its front and back. The caterpillar grows to about 4.5 centimeters in length.
Why should I be concerned about Hickory Tussock Moth Caterpillars?
Touching these caterpillars can cause a rash similar to that caused by nettles or poison ivy. Symptoms can range from slight reddening of the skin to a burning sensation with swelling and pain. In some cases, people may experience headaches, nausea or allergic reactions.
What should I do if I touch one of these caterpillars?
KFL&A Public Health recommends washing the affected area with soap and water as soon as possible. If itching or swelling occurs, apply calamine lotion and/or ice packs to the affected areas to help relieve discomfort.2 If an allergic reaction occurs, it is important to seek medical attention.
Where are Hickory Tussock Moth Caterpillars found?
These caterpillars can be found in Southern Ontario from July to September, feeding on the leaves of hickory, walnut, ash, elm and oak trees in preparation for overwintering in cocoons.
This information has been adapted and reproduced with permission from the Middlesex-London Health Unit.