WEED CONTROL IN CITRUS nurseries is one of the most expensive cultural practices in citrus tree production. Earlier research has shown Simazine (Princep), diuron (Karmex), bromacil (Hyvar X), terbacil (Sinbar), and paraquat can be used effectively around bearing citrus. However, very few herbicides are usable on the 67,000 acres of young non-bearing citrus in California. The object of the studies reported here was to evaluate several herbicides for pre- and post-emergence weed control in citrus nurseries.

Assistance was given by the Irvine Company, Willets and Newcomb, Atkins Nursery, S & J Ranch, Geigy Chemical Company, and Eli Lilly Chemical Company. Cooperation in research was also received from Todd Browne, Don Rosedale, Harold Kempen, Dean Halsey, Bob Russell, Karl Opitz, and Bob Platt.