United Kingdom 
How to get rid of couch grass in lawn?
11 Jul, 2010
Previous question
United Kingdom
How to get rid of couch grass in lawn?
11 Jul, 2010
Previous question
You'd have to try digging it out - lawn weedkillers won't work because they don't kill grass, for obvious reasons. I'm surprised you're noticing couch grass in the lawn, as it gets cut so often its not usually noticeable.
12 Jul, 2010