Recommendation for a Bee Safe Herbicide
Asked August 4, 2020, 1:16 PM EDT
What are the best practices for weed control in Riprap ditches, and do you have a recommendation for a bee safe herbicide?
Washington County Oregon
Weed control in rip rap areas is difficult. Pulling weeds by hand would likely be challenging. Using herbicides is a good approach.
To protect pollinators, don't spray the weeds when the plants are flowering. Spray either before or after the flowering period. Late summer/early fall is a good time to use herbicides with the active ingredients glyphosate and/or triclopyr.
Here's more information about protecting pollinators from pesticides: