Relative Information: Wild caraway is a biennial weed, starting in the first year with a rosette of leaves and in the second year with a flowering bolt. It can grow in a range of soil types, pH levels, and climates. The weed itself can grow in shade, and the seeds are somewhat tolerant to light frost. Detecting the rosette of the weed in the first year is difficult, but it is the best way to control it. Early detection and control is ideal.

Problems: If wild caraway is not controlled early, it can easily displace the native vegetation surrounding it. The seeds can spread easily if the weed is controlled with cultivation. The wild caraway can rebloom if the roots are left intact.

Chemical Controls:
*all controls are shown in alphabetical order
**Read the label for ingredients, application rates, instructions and safety protocols

• Clearview
• Clearview Brush
• Clearview + 2,4-D amine
• Navius
• Sightline

• Navius
• Reclaim II

Mechanical Controls: Ineffective. Mowing down wild caraway will allow new growth from the cut stems.

Biological Controls: No biological control agents at this time.

Cultivation: Effective when repeated before the seeds set. Once flowered, seed dispersal can be prevented by placing a bag over the flowers of wild caraway. Seeds should be disposed of in a landfill or burned.

*Grazing: Ineffective. Not utilized by livestock and will quickly spread with high seed dispersal rates.
*Any grazing on invasive species should not be considered.

Disclaimer:
This is for information purposes only. Please always read and follow the label of each chemical control used (herbicides). For more information on the local policies of chemical use in your area, contact your agricultural division.

This information was made possible by funding from the Southern Alberta Land Trust Society.

Other sponsors of this work include Bayer CropScience, Dow AgroSciences and Alberta Invasive Species Council.

Selected Images

Maps

Invasive Listing Sources

• Colorado Noxious Weeds

References