Alternative Management Tactics
    for Combating Soilborne
     Phytophthora Diseases
                   Jim Downer
 Unive...
Avocado Root Rot
Phytophthora: symptoms
Generalized Phytophthora
      Life History
Phytophthora spore stages




Zoosporangia/spores   Chlamydospores   Zoospore cysts
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
Downer Fightinging Phytophthora 08
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Downer Fightinging Phytophthora 08

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2008 APS meeting, Phytophthora Workshop

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Downer Fightinging Phytophthora 08

  1. 1. Alternative Management Tactics for Combating Soilborne Phytophthora Diseases Jim Downer University of California Cooperative Extension Ventura, CA 91003 ajdowner@ucdavis.edu
  2. 2. Avocado Root Rot
  3. 3. Phytophthora: symptoms
  4. 4. Generalized Phytophthora Life History
  5. 5. Phytophthora spore stages Zoosporangia/spores Chlamydospores Zoospore cysts

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