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Pustula helianthicola (white blister rust of sunflower )
Pustula helianthicola
white blister rust of sunflower
Albugo tragopogonis, Albugo tragopogonis var. helianthi, Pustula trogopogonis
Argentina, Uruguay, Soviet Union, Australia, Belgium, France, Germany, Italy, Ukraine.
CO, KS, NE, WI, IL, MO
2021-04-27
fungus
China
Restircted to sunflower and a few weed hosts
PUSTHE
1 Known Hosts
Helianthus annuus
sunflower
Yes
PUSTHE-3,PUSTHE-4
Oospores primarily embedded in achenes. These oospores transmitted to seedlings in controlled experiments.
Yes
Visual examination
Test used for research purposes only. Test has not been validated or standardized.
PUSTHE-3
Yes. Metalaxyl or mefenoxam fungicides
Resistant varieites are available
PUSTHE-2
PUSTHE-3
Viljoen, A., van Wyk, P. S., and Joost, W. J. 1999. Occurrence of the white rust pathogen, Albugo tragopogonis, in seed of sunflower. Plant Dis. 83:77.
PUSTHE-4
Lava SS, Heller A, Spring O. 2013. Oospores of Pustula helianthicola in sunflower seeds and their role in the epidemiology of white blister rust. IMA Fungus; 4(2):251-258.
PUSTHE-2
Jardine DJ, and Kloppers R, 2015. White Rust. pg. 26-28. In, Compendium of Sunflower Diseases and Pests. pg. eds.; Robert M. Harveson, Samuel G. Markell, Charles C. Block, and Thomas J. Gulya. APS Press St. Paul, MN.
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