Metin GULESCI, Leaf Tobacco, Bugwood.org
http://mgulesci.wix.com/metingulesci
Paul Bertrand, University of Georgia, Bugwood.org
blue mold (Peronospora tabacina) symptoms on flue-cured tobacco (Nicotiana tabacum (flue-cured type))
Gerald Holmes, Strawberry Center, Cal Poly San Luis Obispo, Bugwood.org
Spinach leaf showing angular chlorotic lesions caused by the pathogen Peronospora farinosa. March 1995
Gerald Holmes, Strawberry Center, Cal Poly San Luis Obispo, Bugwood.org
Abundant sporulation of Peronospora destructor on onion leaf. February 1996
Gerald Holmes, Strawberry Center, Cal Poly San Luis Obispo, Bugwood.org
Symptoms of downy mildew on the upper leaf surface. January 1997
Paul Bachi, University of Kentucky Research and Education Center, Bugwood.org
Red/purple spots or blotches with barely visible downy mycelial growth in spots on lower side of leaves. Apache variety.
Jean L. Williams-Woodward, University of Georgia, Bugwood.org
Downy mildew symptoms on Knock-out rose, Rosa spp. 'Radtko'.
Bruce Watt, University of Maine, Bugwood.org
Infected plant
Bruce Watt, University of Maine, Bugwood.org
Sporangiophores evident on infected leaf
Bruce Watt, University of Maine, Bugwood.org
Symptoms on upper leaf surface
Bruce Watt, University of Maine, Bugwood.org
Symptoms on lower leaf surface
Bruce Watt, University of Maine, Bugwood.org
Infected leaves, upper side