What can I use now to kill weeds in asparagus while I am still harvesting?
Grass in Asparagus
Certified GKH Gardening Expert
Pulling the weeds is the safest method to remove the weeds.
If you choose to use a chemical method, make sure the labels specifically list the weeds that it works on that it is safe to use on Asparagus.
Here is an article with more information.