east i'm out of date with abbreviations, whats BT? i would pull those nettles out, one time i was driving and I couldn't believe what I seen. i reversed drove back and sure enough their was a huge canadian thistle in this guys yard waiting to pop open these things are nasty little suckers theirs a lot of them up in washington area so i huied and a nice local guy came out and i asked em if he knew what it was he though it was just a weed we started talking story and he said those started popping up after his lot got bulldozed, garentee little thestles were on the bulldozer tracks is what i thought, but he pulled it and said he'll keep an eye out. even though ocean view is already infested with thistles because those zebra's that guy ordered crapped out some seeds, must have been grazing on some thistle before they were shipped over