John Roncoroni
University of California Cooperative Extension, Napa County

John Roncoroni is a Weed Science Farm Advisor with the University of California Cooperative Extension (UCCE) in Napa county. John received B.S. (Environmental Policy Analysis and Planning with an emphasis in Agriculture) from UC Davis and began working in weed control as a Staff Research Associate at UC Davis in 1983. He earned his M.S. (Horticulture) from UC Davis in 1999. He became a UCCE Weed Science Farm Advisor in Napa County and an IPM affiliate advisor in March, 2007. John specializes in orchard and vineyard floor management—weed control and cover cropping in California premium winegrapes.

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