I have a dichronda lawn, what can I use to kill crap grass that is coming under the fence and trying to take over my dichondra? Thank you for any help you can give me.
Sacramento County California lawns and turf
Thank you for your question. Do you mean 'crab' grass? Here is an Extension article about this weed and its control in lawns with dichondra grass: http://ipm.ucanr.edu/PMG/PESTNOTES/pn7456.html
As the article indicates, a pre-emergent herbicide (before the crabgrass germinates) is the most effective means, but you've undoubtedly missed that window. Dichondra is a warm-season grass, but the post-emergent herbicides are not recommended for it. If you have other questions, I suggest you contact your Extension office directly:
Thank you for your response Kristena, have a wonderful day.