Question
I have St. augustine grass but started getting what I thought was crab grass.  I took some to the nursery and was told it was wild bermuda grass.  They were not able to help me.  I have been using sugar for 4 months and have a great looking lawn except for the wild bermuda.  Must I live with this grass or can you help.

Answer
Start praying, my friend.

Are we talking about "Wire Grass" as in "Cynodon dactylon" aka 'Bermuda Grass':

www.blueplanetbiomes.org/bermuda_grass.htm

aka 'Devilgrass'?

There's a closeup photo at the Virginia Tech Weed I.D. Guide:

www.ppws.vt.edu/scott/weed_id/cynda.htm

Yes?

You have a better chance of winning the lottery than getting rid of this stuff.  As they write at Virginia Tech, Wiregrass 'has both rhizomes and stolons and is capable of forming a turf or mat of fine leaves.'

Although there are attractive, desirable varieties sold as 'Bermudagrass' for use as lawns, THIS creeping Cynodon variety from Africa is 'a very troublesome and hard-to-control weed'.  It grows uninvited in Lawns 'as far north as southern New Jersey.'  I pulled a stray Cynodon out of my Dahlia bed this afternoon.  Elephants like it.
Farmers do not.

Reports AllAllergy (www.allallergy.net/fapaidfind.cfm?cdeoc=141):

'The seeds, like the flowers, are tiny, with as many as 4.4 million seeds in one kilogram.'

See that?

4.4 MILLION seeds in a single kilogram.

How do you like this quote from Dennis Hinkamp, writing for the Utah State University Extension about 'The Losing Battle Against Bermuda Grass' interviewing one of the Utah authorities:

'"One of the more common questions I'm asked is how to control Bermuda grass in the lawn. My standard reply is 'asphalt'," says Jerry Goodspeed, Utah State University Extension horticulturist. Unfortunately, Bermuda grass can grow through asphalt and really thrive.

They deal with it in Utah by growing it, then killing it with RoundUp; growing it again, then killing it some more; then more TLC followed by more RoundUp.  That's way too many toxic chemicals for me.  How much DNA is screwed up in the process?  Don't they think you breathe this stuff as it goes down?  Doesn't RoundUp 'drift' to the neighbor's plants and onto your own clothes as it goes down?  What's the collateral damage?  I don't know to know, and I don't want to find out.

Some 'Lawncare Professionals' swear by a mean, ugly chemical called Fusillad II.  But this will also wipe out all your other Lawn Grasses so far as I can tell, along with the microbes in the soil and if you get enough exposure yourself maybe it will even wipe out YOU.

Alas, there is no definitive eraser for this awful Weed. Can't even smoke it.  They're working on it because it is so invasive it poses ecological problems.  The only safe and foolproof way to get rid of it is to Solarize your soil for the summer -- which it is too late to do that now -- and by fall you'll have Wiregrass-free soil ready to amend and seed.  You're probably going to object to this, so I won't go into the details, but it's the only way I know of right now to eliminate this stuff.

As you can see, Bermudagrass LOVES rich, healthy soil.  It makes a great Lawn because it's so rough and tough.  Some states classify it as a noxious Weed; others, people cultivate and hybridize it.  One reason it's so popular as a Lawn is because it IS SO MEAN.  This stuff is just like Donald Trump.

Sorry to be the bearer of bad news.  I'll let you know if I see anything else.  Interesting use of table Sugar.