Guignardia bidwellii

Black rot

Photo: Matthew Zidek, Texas A&M Agrilife Extension Service, Bugwood.org

  • A fungus that affects all green tissues of the grapevine, including the fruit
  • Can result in complete crop losses in warm and humid growing regions
  • Can spread easily over long distances through water and wind-borne spores, as well as through propagation material and fruit
  • Present in North America, Asia, Africa, Europe and South America

High priority pest of: Dried fruit, Table grapes, Wine grapes

Scientific name: Guignardia bidwellii
EPPRD Category: 3
Life Form: Fungus

Pest Documents

FS: fact sheet

CP: contingency plan

DP: diagnostic protocol