DOWFAXhttps://s3-euw1-ap-pe-df-pch-content-public-u.s3.eu-west-1.amazonaws.com/9781351069502/6e045cc6-25cf-4016-b3be-30c21f46b189/content/pg79_1.tif" xmlns:xlink="https://www.w3.org/1999/xlink"/> (Trademark of Dow Chemical Co.) surfactants are used as wetting agents and dispersants for pesticide active ingredients in agricultural products. Independent greenhouse and field studies were conducted to determine if the addition of DOWFAX surfactants would enhance the biological activity of certain commercial herbicide products when used as a tank-mix adjuvant. Test results using commercial formulations of atrazine, acifluorfen (Blazer®, Rohm and Haas Co.), 2,4-D, glyphosate (Rodeo®, Monsanto Agricultural Co.), and fluazifop-butyl (Fusilade®, ICI Americas, Inc.), herbicides show increased control of certain broadleaf weeds and grasses up to 80% over that of the standard treatment. Also, little to no injury was observed to beneficial host plants such as com (Zea mays L.) and soybean (Glycine max (L.) Merr.).