Sudden oak death

sudden oak death

Photo: Joseph O’Brien, USDA Forest Service,

  • Infects over 130 tree and shrub species
  • Symptoms in shrubs: blackened shoots, diffuse dark brown spots or blotches with fuzzy margins, starting at the leaf tip
  • Symptoms in trees: stem canker with red to black thick sap oozing on the bark surface. Stem necrosis leads to the death of whole crown
  • Spread with infected plant material, or water, growing media and compost that has been in contact with infected plants

High priority pest of: Avocados, Blueberries, Plantation forestry, Production nurseries, Chestnuts, Hazelnuts, Macadamias, Tea tree, Truffles

Scientific name: Phytophthora ramorum
EPPRD Category: 1
Life Form: Fungus

Pest Documents

FS: fact sheet

CP: contingency plan

DP: diagnostic protocol