Does anyone know of an organic method to get rid of nutsedge? At little background info: For several years, i've managed to grow a 3 sisters garden without using artificial fertilizers or pesticides but last summer, for the 1st time, i had an outbreak of nutsedge. I've never seen any sedge on the property before and i suspect it, or the seeds, came from a store bought bag of manure i foolishly purchased early in the growing season to use on apple trees. What was left of the manure i scattered on the garden. I've got well water so even if i didn't care about growing organically, i couldn't use stuff like sedgehammer on the property without poisoning my drinking water. I read online that using molasses would rot the tubers, but several applications last summer only seemed to slow the growth. At the end of last summer i planted a cover crop of hairy vetch as it's suppose to reduce weed density. If or probably when it re-emerges in spring, does any byc gardener have advice on how to control it?