What safe weed killer works in the Texas heat?

I, too, am in Texas and finally, this year, gave up on the battle with the weeds in my bermuda so I hired LawnTech and my yard looks gorgeous. At the start of summer the grassy weeds were taking over and those things are impossible to get rid of, but with LawnTech the grass is so thick in the sunny areas that it is like a carpet. I do my own mowing and mow every three to five days depending on the rainfall. I have raised the blades rather high now in hopes of shading out the weeds, but the rare large leafed weeds I find I normally just pull out by hand.

I hate to sound like an ad for those people, but for less than $300 a year, my grass is FINALLY looking decent. Their latest treatment was pure nitrogen granules.

I don't know why I put the same products down every year as these people yet my grass looked so terrible.

I use vinegar, will kill anything, so be careful when spraying.

I use a mixture of plain vinegar and salt. It will kill everything, so be careful where you spray it. Use it during the heat of the day, and in 1-2 days, you will see the weeds start to dry out and die.

It took several years for me to get my Bermuda grass looking like a golf course, but I did it and the only chemical I used was Over and Out to keep the fire ants at bay. First thing, in the fall use a pre-emergent weed killer. Stuff will fly in on the air every year. It can't be helped. Second use the "Grandma Tutt's tonics" in Jerry Baker's The Impatient Gardner. They're cheap, easy to make and do so much more than anything you can buy. Third, Neil Sperry has recently updated his thinking on mowing. Scalp your last mow of the year. But don't let the grass grow long to "shade itself" during the summer. I keep my riding mower blade at 3" in the summer and if we get rain, mow more often so I'm never cutting off more than 1/2 inch. Last, don't water too much. And when it hits 100' or more, I never water with a sprinkler. Only hose end, in the evening, usually after a mow.

Well I use white vinegar. It also kills any type of grass. So be careful and don't spray it on grass you don't want to kill.