PNW Weed Management Handbook
This handbook is designed as a quick and ready reference for weed control practices and herbicides used in various cropping systems or sites in Idaho, Oregon, and Washington.
Weed Decision Tools
Dynamic decision tools to help you make informed management choices.
- Herbicide Comparison Tool New
- AMS Sprayer Mix Calculator
- Herbicide Mechanisms of Action (MOA) Tools
- Winter Wheat Herbicide Efficacy Table
Mayweed Chamomile, Anthemis cotula L., is native to the Mediterranean region but has been widely introduced as a weed in the temperate zones. In 1995, it could be found in almost all of the lower 48 states. Mayweed is an annual bushy, ill-scented herb.
Integrated Weed Management with Ian C. Burke