my backyard has been taken over with these 2 weeds. I live in Texas and my yard is a mixture of st. augustine and bermuda. Im hoping the st. augustine will eventually completely take over as its already about 60%. that being said, i have had a hard time trying to figure out what to put down that wont kill the st. augustine. i put down some altrazine about a month ago and it browned up the bermuda pretty bad and killed some of the clovers, etc. but didnt do anything for these 2 things. i have attached a few pictures. the one stuff looks like a green onion and stays in little clumbs of 4-5 blades and grows tall pretty quick. the other stuff is a different color green, kinda darker and stays low and spreads out wide. any ideas on what I can put down to kill these things? Anyone know the name of what they are?