What organic solutions are there to eradicating existing Dallis grass in golf course turf (419 bermuda) without damaging the bermuda or other surrounding plants?

If you have a small area it pulls out pretty easily. For larger areas I'm not sure whether vinegar works against it or not.

I've stopped treating our properties with vinegar on Dallisgrass. Believe it or not, we get out there with sharpshooters and a bag of compost, dig them out, and refill the hole with compost. We've found it to be the quickest way. It really helps to do it after a rain or the day after the irrigation has run when the ground is softer. They pop out in 3 seconds. In one hour you can usually get rid of about 40 of them.

Hope that helps,
Mitch.
www.dotdirt.com

I agree, that stuff is so tough vinegar is just a tickle to it. Sharpshooter or spade fork, choose your weapon, but take it out manually when the soil is soft. And it's better to get it now rather than waiting till it gets big later on.

What is a Sharpshooter?

It's a kind of shovel, narrow and long, good for surgical digging (so to speak).

The second from the left and the center shovels.

what about Fiskars or GardenWeasel or something like that?

I've got a huge amount of dallisgrass (among other weeds) to pull up and the thought of breaking my back w/ a sharpshooter isn't appealing. Anyone use these tools?

A garden weasle isn't big enough for it. Dallis grass has big solid root that leaves a hole 6 - 12" deep, that's why the compost - otherwise you'll break an ankle later stepping in the hole!

I use a spade fork, but I can see why a sharpshooter would also work.