thistles in blueberrys

Hello Dweber,

Don't know if this will be helpful but worth reviewing. The Thistle you describe sounds like our creeping thistle, which has an undergound rhizomatous root system and hence your difficulty in pulling them up/out. Rather than spray a herbicide onto the thistles and risk damage to your Blueberry plants and crop I would recommend the boring arduous task of "painting" your preferred herbicide onto the young leaves of the thistles with a suitable decorators paint brush. Avoid dripping onto your blueberries but with patience you should succeed. You may need to do this on 2 or 3 occassions over a 6 - 8 week period. Good luck, Dioon11

Thank you Dioon11 for your input. I made the plunge today and applied Round-up to the leaves only of the thistles. I am still concerned that the chemical will bleed off of the rhisomes and kill the roots of the blueberrys. I will know shortly. I always seem to have something unwanted growing in with my crops. I have quack grass growing thick in with my raspberry patch. (raised bed) Problem--how do I kill the quack-grass without killing the raspberrys. Anyway, I will post a response later if what I did today helps. Thanks again.