The Celsius herbicide works well, however it kills some of the grasses it is labeled for use with.. I recently used it on an a mixed yard of Bermuda, St Augustine, and centipede. Lost some of all three of the grasses that I was trying to remove the other grasses from.
My neighbor recommended Celsius as a remedy for Virginia buttonweed so I was excited to use it. I also read other reviews that rated it highly. I was pleased to read that it would also control green kalinga and crab grass.
I have used it as directed for months. The buttonweed seems to die but then comes back. The crab grass and kalinga are not affected either.