Pest Information for Wyoming

Last Modified: July 30, 2025

Active Federal Quarantines

The following pests have Federal quarantines in certain areas of this State. Other Federal and State quarantines may apply. Learn about State-level quarantines.

There are no Federal quarantines right now.

Watch Out For These Pests

This state has some crop, forest, or urban area(s) where the following pests or diseases could survive year-round.

Attacks: hardwood trees, national forests

Balanced on an index finger the Asian longhorned beetle's face is dwarfed by its long black and white banded antenna. The distinct bluish color on the ALB's legs and feet—a sign of a newly emerged adult.

Attacks: wine and table grapes

Gray and brown moth on a grapevine leaf.

Attacks: North American tree and shrub species

White female moth with light brown lines on its wings next to brown male moth with dark brown lines on its wings.

Attacks: trees and shrubs

Dark-colored, hairy caterpillar with five pairs of blue dots followed by six pairs of red dots lining its back crawling on a partially eaten leaf.

Report a Pest

Have you recently encountered the listed pests or any invasive species?

If so, contact the State Plant Health Director below:

Wyoming State Plant Health Director

Lori Witham (Acting)

Email: lori.m.witham@usda.gov

Phone: (406) 449-5210

Alt-Phone: (406) 431-3279

Fax: (406) 449-5207

Mailing Address:

1400 S 24th St W.

Suite 8A

Billings, MT 59102

Office Manager:
Ron Gregory: 307-432-7979
Ronald.Gregory@usda.gov

Associate Executive Director:
Vicki Wohlers: (970) 619-0652