Benson Fighting Phytophthora 08
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Benson Fighting Phytophthora 08

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2008 APS meeting, Phytophthora Workshop

2008 APS meeting, Phytophthora Workshop

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  • 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. Trial Hinodegiri azalea
  • 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. Next day • ‘Stir up’ rice mat with bent rod
  • 5. Loosen mat & separate grains • Autoclave 2nd time: 40 min