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Combating the Development of Chemical Resistance in Agriculture

Topics at the upcoming Sustainable Ag Expo, November 18 and 19
November 06, 2013

The continuous challenge of chemical resistance to insecticides, fungicides, and herbicides by pests, diseases, and weed species will be the topic of a panel discussion at the upcoming Sustainable Ag Expo, November 18 and 19 at the Madonna Inn Expo Center in San Luis Obispo, California.

During a general session entitled “Managing Resistance by Pests, Diseases, and Weeds” on Tuesday, November 19, three distinguished panelists from the University of California system will lead the discussion on best management practices for preventing and overcoming resistance development.

Doug Gubler from the UC Davis Department of Plant Pathology will discuss how resistance to DMI fungicides in vineyards occurs throughout the state but is only expressed under certain circumstances. He will explain how and why growers can still use these fungicides effectively for powdery mildew control.

Surendra Dara, the UCCE Strawberry and Vegetable Crops IPM Advisor, will share his experience with the increases in mite infestations since 2013 and how to manage insect and mite resistance.

John Roncoroni, UCCE Weed Science Farm Advisor from Napa, who will share the latest advances in weed resistance management in vineyards and orchards.

Staged in an accessible format under one roof at the Madonna Inn Expo Center, the 9th Annual Sustainable Ag Expo offers inventive presentations and an innovative trade show targeted at farmers, agricultural professionals, and pest control advisors. The two-day educational meeting will also provide ample continuing education credits and an exhibitor showcase.

Since its inception, the Sustainable Ag Expo has focused on the latest trends in sustainability and hot topics in California agriculture. Visit for more information, including attendee registration and a full schedule of events. The Vineyard Team can be reached at 805.466.2288.

The Vineyard Team is a non-profit organization dedicated to promoting sustainable viticulture practices on the Central Coast since 1994. Visit to learn more about the Vineyard Team and its SIP™ (Sustainability in Practice) Certification Program.

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