Benson Fighting Phytophthora 08

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2008 APS meeting, Phytophthora Workshop

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Benson Fighting Phytophthora 08

  1. 1. Two simple inoculation methods for Phytophthora blight and root rot studies Mike Benson Steve Tjosvold NC State University University of California Cooperative Extension, Raleigh Watsonville NC STATE Ornamental Pathology
  2. 2. Trial Hinodegiri azalea
  3. 3. Phytophthora inoculum • Rice grain method – 25 g long grain rice – 18 ml deionized water – Autoclave 40 min Holmes, KA and Benson, DM. 1994 Plant Disease 78:193-199.
  4. 4. Next day • ‘Stir up’ rice mat with bent rod
  5. 5. Loosen mat separate grains • Autoclave 2nd time: 40 min

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