Paul Bachi, University of Kentucky Research and Education Center, Bugwood.org
Stained, asexual spores of the fungal anamorph, Phoma cucurbitacearum.
Paul Bachi, University of Kentucky Research and Education Center, Bugwood.org
Dark brown leaf spots often with concentric rings.
Paul Bachi, University of Kentucky Research and Education Center, Bugwood.org
Close-up of leaf spots with concentric rings.
Paul Bachi, University of Kentucky Research and Education Center, Bugwood.org
Close-up of leaf spots with concentric rings. Spots often occur along margins of leaves.
Paul Bachi, University of Kentucky Research and Education Center, Bugwood.org
Earlier stage of leaf spot development before all infected tissue turns dark brown.
Paul Bachi, University of Kentucky Research and Education Center, Bugwood.org
Asexual spore-producing structures "pycnidia" with spores oozing out, seen in infected tissue.
Paul Bachi, University of Kentucky Research and Education Center, Bugwood.org
Conidia enbedded in infected leaf tissue under darkfield observation.
Paul Bachi, University of Kentucky Research and Education Center, Bugwood.org
Asexual spores of the fungal anamorph, Phoma cucurbitacearum.
Paul Bachi, University of Kentucky Research and Education Center, Bugwood.org
Dark brown leaf spots often with concentric rings.
Paul Bachi, University of Kentucky Research and Education Center, Bugwood.org
Close-up of dark brown leaf spot with concentric rings.
Stained, asexual spores of the fungal anamorph, Phoma cucurbitacearum.
Dark brown leaf spots often with concentric rings.
Close-up of leaf spots with concentric rings.
Close-up of leaf spots with concentric rings. Spots often occur along margins of leaves.
Earlier stage of leaf spot development before all infected tissue turns dark brown.
Asexual spore-producing structures "pycnidia" with spores oozing out, seen in infected tissue.
Conidia enbedded in infected leaf tissue under darkfield observation.
Asexual spores of the fungal anamorph, Phoma cucurbitacearum.
Dark brown leaf spots often with concentric rings.
Close-up of dark brown leaf spot with concentric rings.