Luxembourg-Pamol, Inc. Target 6 Plus MSMA Monosodium acid Methanearsonate MSMA 48.3% MSMA can be used on Cotton, Golf courses, Sod Farms, and highway rights of way for weed control. MSMA should be mixed at a rate of 2oz per gallon of water for general applications. Please refer to the label or give us a call for specific mix rates for particular weeds.