Hi, I am new to the board and live in the sandy area of Ocean Shores, WA. I have read all the discussion about horsetails and am not sure which I should try without killing my plants. The soil is pretty sandy here and I have a real horsetail problem. I have placed cardboard and landscape covering, which has helped somewhat. However, the horsetail is coming up anywhere I have plants and along the edges and of course anywhere I do not have covering. The neighbors have quite a growth and do not try to contain them in any way. Does the vinegar matter whether it is white or regular cider vinegar? What is 2,4-D and can it be used in residential areas? I was told once that if you have a horsetail problem the only solution is to move! Thanks in advance to anyone who will answer my questions.