I have a slope in my backyard with an erosion problem. Thus, I was planning Ice Plants this early spring, hoping they would spread fast to erosion-control it. However, at the time I planted ice plant, there were these many weeds. Because of regular watering after planting the ice plants, weeds have emerged and flourished much better than else where.

I am wondering if there are products in the market I can use to kill these weeds but not Ice Plants? I definitely will use premergent this fall, but now there are so many weeds.

Thanks