Results reported here are for experimental applications during the past few years, and are not to be considered official recommendations of University of California. Recommendations for weed control in vineyards may be found in the current publication of “Weed Control Recommendations”, available at local Farm Advisor offices.

Cooperators in the field work of this study included: Don Rosedale, Farm Advisor, San Diego County; L. Hendricks and V. Carlson, Farm Advisors, Merced County; C. Lynn, Farm Advisor, Fresno County; H. Kempen, Farm Advisor, Kern County; Chet Hemstreet, Farm Advisor, Lake County; Dean Halsey, Farm Advisor, Riverside County; and R. Sisson, Farm Advisor, Sonoma County. This work was supported in part by the Geigy, Eli Lilly, Thompson-Hayward, Diamond Shamrock, Dow, and Ansul chemical companies.