I am sorry for this delayed reply to your gardening question. We are transitioning to a new Q&A system and your question was unfortunately lost in the transition. I have discovered it now and hope this reply is not too late to be of help.
The best way to get rid of everything is with a spray of glyphosate (Roundup is one brand). Make sure the weed are actively growing, not drought stressed, for maximum results. Wait a week after spraying and then rototill or spade the area to prepare for planting. In the future try maintaining a 2-3 inch mulch layer around plants to deter annual weed seeds from germinating.
Thanks for the question. Please stop in again soon!
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