Skip to main content
Plant Diseases
Septoria leaf spot

Rudbeckia planting

Rudbeckia close-up

Septoria on Rudbeckia

Heuchera close-up

Heuchera lesions

Septoria pycnidia
 

 
Pathogen: Septoria spp.
Hosts Include: Artemisia, Baptisia, Campanula, Chrysanthemum, Coreopsis, Delphinium, Dianthus, Echinacea, Gaillardia, Heuchera, Lamium, Lathyrus, Lupinus, Lychnis, Monarda, Potentilla, Ratibida, Rudbeckia, Stachys, Veronica, and Viola.
Symptoms: Tan to brown leaf spots, small black fruiting bodies (pycnidia) may be visible in the lesions. Lesions on Rudbeckia and Echinacea are purple. Lesions may be more severe on older foliage.
Spread: The disease may be introduced on infected material. Spores are splash dispersed to nearby foliage. Disease can also be spread by workers moving through wet foliage.
Management: There are many species of Septoria, each is relatively host specific, affecting only a few plant genera. Remove and destroy infected plant material. Avoid overhead irrigation or carefully time it such that the duration of leaf wetness is minimized. Protectant fungicides can be used to manage Septoria leaf spot.   

Diagnostic Services
Diagnostic Services

christian louboutin outlet | christian louboutin | canada goose sale | canada goose jacket

moncler kids

moncler jacket beats by dre cheap beats by dre

north face jackets

mulberry mulberry sale michael kors wallets moncler doudoune