we have tons because of the wind transplanting them so yesterday I mixed white vinegar and salt and sprayed all of them twice yesterday and now they are all brown and shriveled now will take the twister we have and take them out vinegar is a good weed killer just be careful and don't spray on flowers or anywhere you plan to plant something moderator's note: added a more descriptive title to topic
This seems to be quite a popular method of weed killer. I have seen quite a few members of this forum posting about it. Good to know that it works!