| Plasmopara halstedii | |
|---|---|
| |
Scientific classification 
| |
| Domain: | Eukaryota |
| Clade: | Diaphoretickes |
| Clade: | SAR |
| Clade: | Stramenopiles |
| Phylum: | Oomycota |
| Order: | Peronosporales |
| Family: | Peronosporaceae |
| Genus: | Plasmopara |
| Species: | P. halstedii
|
| Binomial name | |
| Plasmopara halstedii (Farl.) Berl. & De Toni, (1888)
| |
| Synonyms | |
|
Peronospora halstedii Farl., (1882) | |
Plasmopara halstedii is a plant pathogen infecting sunflowers. The species is one of many pathogens commonly referred to as downy mildew.[1] P. halstedii originated in North America.
Plasmopara halstedii oospores produce a thin wall which are resistant structures, sexually produced that are essential for its continuation. After entering an area, the eradication of the pathogen is difficult due to the formation of oospores, which can remain viable in soil for many years.[2]
- ^ Friskop, Andrew; Markell, Sam; Gulya, Tom (2009). "Downy Mildew of Sunflower" (PDF). Sunflower Publications. Fargo, North Dakota: North Dakota State University Extension Service. Retrieved 4 March 2016.
{{cite book}}:|website=ignored (help) - ^ Maria Villas Bôas de Campos Leite, Regina; Assis Henning, Ademir; Rosa Rodrigues, Silvia; Fernandes de Oliveira, Marcelo (December 2007). "Detecção e variabilidade de Plasmopara halstedii no Brasil e avaliação da resistência de genótipos de girassol ao míldio" [Detection and variability of Plasmopara halstedii in Brazil and resistance of sunflower genotypes to downy mildew]. Summa Phytopathologica. ISSN 0100-5405.