Annual ryegrass is a vigorous plant. Planted last summer or fall, the roots can be established to more than 5 feet into the soil. So, even if there’s only 6 – 8 inches of top growth, treat annual ryegrass as a mature plant. Successful control of annual ryegrass with glyphosate or other herbicides depends on:
- Using full herbicide rates
- Spraying during favorable weather conditions
- Using good spraying practices.
Click here for a free brochure: Annual Ryegrass Management
Click here to go to the Annual Ryegrass website, for more detail on management.
Controlling annual ryegrass in the spring is best done:
- In warm weather
- When the ryegrass is actively growing.
Annual ryegrass can be a challenge to control if the herbicide is applied when:
- There is cool, cloudy and wet weather, or
- When the ryegrass has reached the joint growth stage (stem elongation).
Timing - Control (burndown) of the annual ryegrass cover crop:
- Is most successful when the plant is small, 4-8” in height
- Annual ryegrass is more difficult to control after the first node has developed
- Burndown occurs before the middle of April