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Howard F. Schwartz, Colorado State University, Bugwood.org
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Image Number: 5362263

purple blotch (Alternaria porri) (Ellis) Cif.

Photographer:
Howard F. Schwartz
Organization:
Colorado State University
Descriptor:
Symptoms
Description:
Purple blotch (Alternaria porri), a disease of onions.
Image type:
Field
Host:
garden onion (Allium cepa L.)

You must attribute the work in the manner specified (but not in any way that suggests endorsement).

Image location:

Subject

Kingdom: Fungi
Phylum: Ascomycota
Subphylum: Pezizomycotina
Class: Dothideomycetes
Subclass: Dothideomycetidae
Order: Pleosporales
Family: Pleosporaceae
Genus: Alternaria
Subject: Alternaria porri (Ellis) Cif.

Host

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Liliopsida
Order: Asparagales
Family: Amaryllidaceae
Genus: Allium
Subject: Allium cepa L.
Node Affiliation:
Colorado State University
Image uploaded:
Friday, January 25, 2008
Image last updated:
Tuesday, March 4, 2008