Pustula obtusata

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Pustula helianthicola
Albugo tragopogonis 1.JPG
A sunflower leaf with white rust infection caused by Pustula helianthicola in the field.
Scientific classification
(unranked): SAR
Superphylum: Heterokonta
Class: Oomycetes
Order: Albuginales
Family: Albuginaceae
Genus: Pustula
Species: Pustula obtusata
Binomial name
Pustula obtusata
(Link) C. Rost, (2012)

Pustula obtusata, Goatsbeard White Rust, is an oomycete plant pathogen unrelated to fungal organisms.

Albugo tragopogonis is the old but illegitimate name for Pustula obtusata[1], the causal agent of white blister disease on goatsbeard (Tragopogon spp.). This name has often been misapplied to the sunflower white blister pathogen.

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