What herbicide kills cape weed?

Non-selective and selective are the herbicides which control cape weed.

Specifically, the weed in question (Arctotheca calendula) can be prevalent from March to December depending upon environment and location. Treatment most effectively is carried out from March to May. It will consist of hand-pulling, hoeing, mowing to remove flowers and seed heads, and spraying concentrated forms diluted with water just prior to application.