To Order Call 406-299-9850 Or Email Us at

Welcome to Integrated Weed Control

The concept of classical biological control is very simple. Exotic (non-native) weeds are responsible for the vast majority of the range weed problems in North America. When foreign weeds are introduced, they come without the successful co-evolved enemies that are present in their native ranges. Without these natural checks present, the weeds are able to out-compete native vegetation. Introducing biological control agents can restore the natural checks and balances that control exotic weeds in their native habitats.

Easy to collect and move around–call for free tips and advice!


Insects marked with a net are easy to move around–call for free tips and advice!


This catalog features the widest selection of insects currently available. We are continuously working to include new products as they become available. If you want to know more about a weed or insect, including ones not featured in this catalog, please give us a call or Download IWC Catalog.

Catalog and Price List

Integrated Weed Control

4027 Bridger Canyon Road
Bozeman, MT 59715-8433

Contact Information

Phone: 406-299-9850

Noxious Weeds

Canada Thistle

Canada Thistle Learn More >>

Leafy Spurge

Leafy Spurge Learn More >>

Purple Loosestrife

Purple Loosestrife Learn More >>

Poison Hemlock

Poison Hemlock Learn More >>

St. Johnswort

St. Johnswort Learn More >>

Common Mullein

Common Mullein Learn More >>