Systemic fungicides for control of some diseases of Easter lilies
John Lenz, Humboldt and Del Norte counties
Albert O. Paulus, University of California, Riverside.
John G. Bald, Oregon State University.
California Agriculture 25(3):4-5. DOI: 10.3733/ca.v025n03p4.
Benlate, a new systemic fungicide, has recently given excellent control of Botrytis or “fire” of Easter lily foliage in northwest California. Benlate 50W, applied to lilies in 1968, at the rate of 2 lbs of the formulation per acre, produced control equal to, or better than, the standard Bordeaux mixture. Further trials were initiated in 1969 to compare Benlate with Bordeaux in a large scale trial and to test different rates of material in small experimental plots. In another test, bulbs were dipped prior to planting to determine if there was enough systemic activity to control Botrytis through part or all of the season. Disease control in these dipped bulbs was compared with the standard PCNB-Ferbam dip.
John Lenz is Farm Advisor and County Director, Agricultural Extension Service, Humboldt and Del Norte counties; Albert O. Paulus is Extension Plant Pathologist; John G. Bald is Professor of Plant Pathology, University of California, Riverside. Photo here (and cover); Dr. F. McWorter, Emeritus, Professor of Plant Pathology, Oregon State University.