Our entire lawn is covered with weeds (has been since we bought the house), and if we don't do something now, our neighbors are going to flip. We are getting desperate.

I can't seem to find the answer to this question anywhere.
My DH and I are at our wits end with the weeds in our lawn. He's tried to spray two different chemicals two times, with no real results (except the weeds look watered).

Right now our weeds are aliving and thriving. Our grass is brown and dead. The home depo dude says that we can safely spray round up, kill the weeds now, and then the grass will come up in the spring. Does anyone know if this is true?

Looks like it is too late for RU, as the Bermuda appears to be waking up.

Where RU refers to Roundup...seems someone thinks its is OK to use RU on dormant Bermuda grass.

That...depends. If the grass is absolutely not in the slightest bit awake, then yes.

In the DFW Texas area, you could have several different types of grasses. Some would be awake, others kind of nappy, others not yet. Even around here (where it's still definitely winter), the grass is starting to awaken.

If it were me, here, with my grass, I wouldn't do it. I know I'd have heavy losses.

Consider that for what it's worth, of course.

You just need to make sure you have Bermuda fisrt. Chances are, I am 95% certain it is since you live in DFW, it is Bermuda. The Bermuda is not dead, it is dormant or it should be.

If by a rare chance it is Saint Augustine, Round Up would kill it.

If the Bermuda is waking up, then you will have to wait until the weather warms up to use post-emergence selective herbicide.

if you don't have bermuda, DON'T use RU or you will kill it off.

look at it this way, if you kill everything, are you in worse shape than you are now?

NC warmer than Texas? Probably not. However, northwest Kansas is warmer than Texas in the summer, colder than Anchorage, Alaska in the winter.

You must read and understand and follow exactly the directions for using this product. Dilute it too much, it wont do the job you expect of it.
Use too much of the glyphosate and it wont kill to its best.

If you have common broadleafed weeds---then you don't want RoundUp, instead use any well-named broadleafed weed killing product that is found on every shelf in garden centers and nurseries.

Such killing takes time....results should show themselves in 2 or 3 days...depending on strength used.
You should leave about 2 weeks to pass before doing another application which might have to be done if results do not satisfy you.
In any case, the soil is affected because these herbicides travel through the soil and if used carelessly can affect ground water, or nearby steams.

Used properly, with care, they pose no danger of overuse and should kill the weeds that commonly sprout up on our gardens and lawns.

Once the herbicide has been used and shows results, think to do some overseeding the area. Layering down 1" or 2" of compost or topsoil over the area with the use of a good quality grass seed of your choice, should bring back the area in reasonable time.
This should be carried out within two - three weeks after the application of the weed killer.

2 weeks ago I used scotts bonus s and it worked like wonder. Now lots of green lawn growing and almost all the weeds are gone. I have heard that walmart brand sells similar stuff just little cheaper.

Well 5 months ago Bermuda grass was actively growing here in north TX, so I assume it was growing in south TX too. You are not suppose to spray green Bermuda with Round Up. It can only be done on completely dormant Bermuda. Doh!