DTK913, Depending on what type of grass you have in your clover, Arrow will probably do the best job. It is more expensive than Poast, but seems to do a better job for me. They are both cheaper than Arrest, but none of these will kill Nutsedge, I've done found out [:@] Make sure you use a surfactant/crop oil with these. I usually mix 8oz of Arrow to 20 gallons of water and 2 pints of crop oil per acre. Poast Plus has a surfactant already but don't seem to work as good for me. Good Luck!