Credit 41 Extra is a 4 lb/gallon systemic glyphosate IPA with a proprietary surfactant included for enhanced plant absorption. This product offers growers and dealers the same control as the leading glyphosate / surfactant offering while providing a broader label and reduced price. Credit 41 Extra is intended for use in row crops such as corn and soybeans as well as chem-fallow and reduced tillage markets.