David B. Langston, University of Georgia, Bugwood.org
Powdery Mildew on Watermelon (Podosphaera xanthii syn. Sphaerotheca fuliginea) White, moldy growth. May appear on top or bottom of leaf. Could be confused with downy mildew in early stages.
Charles Averre, North Carolina State University, Bugwood.org
Powdery mildew of cucumbers is a serious and common problem in greenhouses in North Carolina
Clemson University - USDA Cooperative Extension Slide Series , Bugwood.org
powdery mildew (Podosphaera fuliginea) sign on melon (Cucumis melo)
Charles Averre, North Carolina State University, Bugwood.org
Powdery mildew of cucumbers is a serious and common problem in greenhouses in North Carolina .
Gerald Holmes, Strawberry Center, Cal Poly San Luis Obispo, Bugwood.org
Powdery mildew outbreak in watermelon field. Note the chlorotic area near the center of the frame where the disease is prevalent. May 1996
Gerald Holmes, Strawberry Center, Cal Poly San Luis Obispo, Bugwood.org
Healthy leaf (left) among severely infected leaves. June 1996
Gerald Holmes, Strawberry Center, Cal Poly San Luis Obispo, Bugwood.org
Cantaloupe leaf showing many powdery mildew lesions. June 1996
Gerald Holmes, Strawberry Center, Cal Poly San Luis Obispo, Bugwood.org
Many lesions on upper leaf and no lesions on lower leaf. October 1998
David B. Langston, University of Georgia, Bugwood.org
White, moldy growth. May appear on top or bottom of leaf. Could be confused with downy mildew.
Mary Ann Hansen, Virginia Polytechnic Institute and State University, Bugwood.org
powdery mildew (Podosphaera fuliginea) symptoms on squashes (general) (Cucurbita pepo)
Howard F. Schwartz, Colorado State University, Bugwood.org
A cucumber plant showing signs of powdery mildew infection in the field.
Howard F. Schwartz, Colorado State University, Bugwood.org
A pumpkin leaf infected by the powdery mildew fungus Sphaerotheca fuliginea in the field.
Howard F. Schwartz, Colorado State University, Bugwood.org
A pumpkin field with signs of initial powdery mildew infection caused by the fungus Sphaerotheca fuliginea.
Howard F. Schwartz, Colorado State University, Bugwood.org
A pumpkin field with signs of advanced powdery mildew infection caused by the fungus Sphaerotheca fuliginea.
Jason Brock, University of Georgia, Bugwood.org
powdery mildew (Podosphaera fuliginea) symptoms on squashes (general) (Cucurbita pepo)
Jason Brock, University of Georgia, Bugwood.org
powdery mildew (Podosphaera fuliginea) symptoms on squashes (general) (Cucurbita pepo)
Powdery Mildew on Watermelon (Podosphaera xanthii syn. Sphaerotheca fuliginea) White, moldy growth. May appear on top or bottom of leaf. Could be confused with downy mildew in early stages.
Powdery mildew of cucumbers is a serious and common problem in greenhouses in North Carolina
powdery mildew (Podosphaera fuliginea) sign on melon (Cucumis melo)
Powdery mildew of cucumbers is a serious and common problem in greenhouses in North Carolina .
Powdery mildew outbreak in watermelon field. Note the chlorotic area near the center of the frame where the disease is prevalent. May 1996
Healthy leaf (left) among severely infected leaves. June 1996
Cantaloupe leaf showing many powdery mildew lesions. June 1996
Many lesions on upper leaf and no lesions on lower leaf. October 1998
White, moldy growth. May appear on top or bottom of leaf. Could be confused with downy mildew.
powdery mildew (Podosphaera fuliginea) symptoms on squashes (general) (Cucurbita pepo)
A cucumber plant showing signs of powdery mildew infection in the field.
A pumpkin leaf infected by the powdery mildew fungus Sphaerotheca fuliginea in the field.
A pumpkin field with signs of initial powdery mildew infection caused by the fungus Sphaerotheca fuliginea.
A pumpkin field with signs of advanced powdery mildew infection caused by the fungus Sphaerotheca fuliginea.
powdery mildew (Podosphaera fuliginea) symptoms on squashes (general) (Cucurbita pepo)
powdery mildew (Podosphaera fuliginea) symptoms on squashes (general) (Cucurbita pepo)