Try Sencor/MSMA or Dismiss will knock back the goose. We have been using Revolver/Celsius for Goose/Crab along with the Sencor/MSMA mix. Unfortunately we dont have Drive or Dismiss here in Hawaii. The key is preemergent to stop it from coming back as you can add Barricade or something to your spot spray.
This tool below from Par Aide works great on medium to large goose grass. It will spin most of the root out especially in good soils that are moist. Will leave a 2 " hole that we filled with a sand/compost mix. But the real key is sprinkling Ronstar G on top to stop it from returning. You can clean up an area real fast as one summer a single high school student went through the course and made a BIG difference without chemicals or burning the turf.
http://paraide.com/product_detail.aspx?pid=1069&cid=38One tip if you buy tool. Go to hardware store and buy grade 8 replacement bolts and cut off the heads. The ones supplied are too long and weak and will bend easily in rocky soil. About 2-2.5" long is perfect.
Bryan Taylor
Poipu Bay GC