Plasmopara halstedii(PLASHA)
Hosts
Important note about the classification of host plants in GD:
Categories have been assigned by the EPPO Secretariat on the basis of available data at the time of entry. They correspond to a qualitative evaluation of the importance of the host plant for the pest concerned and remain indicative only.
Further explanation of categories is available in the guide.
Categories have been assigned by the EPPO Secretariat on the basis of available data at the time of entry. They correspond to a qualitative evaluation of the importance of the host plant for the pest concerned and remain indicative only.
Further explanation of categories is available in the guide.
| Organism | Type | |
|---|---|---|
| Helianthus annuus (HELAN) | Major host | |
| Artemisia dracunculus (ARTDR) | Wild/Weed | |
| Asteraceae (1COMF) | Wild/Weed | |
| Helianthus (1HELG) | Wild/Weed | |
| Xanthium strumarium (XANST) | Wild/Weed | |
| Ageratum houstonianum (AGEHO) | Host | |
* Pisani C, Patel PC, Rosskopf EN, Abbasi M, Aime MC (2019) First report of downy mildew caused by Plasmopara halstedii on Ageratum houstonianum in the United States. Plant Disease 103(11), p 2968. | ||
| Coreopsis grandiflora (CRLGR) | Host | |
* Salgado-Salazar C, Creswell TC, Ruhl G, Crouch JA (2019) First report of Plasmopara halstedii on Coreopsis grandiflora in the United States. Plant Disease 103(4), 775-776. ------- In a commercial nursery (potted plants) in Monroe county, Indiana (US). Presence confirmed by molecular methods. Symptoms included necrotic gray to black leaf lesions and brown to gray leaf lesions followed by complete necrosis of some leaves. | ||
| Gerbera jamesonii (GEBJA) | Host | |
| Helianthus tuberosus (HELTU) | Host | |
| Rudbeckia fulgida (RUDFU) | Host | |
* Rivera Y, Rane K, Crouch JA (2014) First report of downy mildew caused by Plasmopara halstedii on black-eyed Susan (Rudbeckia fulgida cv. ‘Goldstrum’) in Maryland. Plant Disease 98(7), 1005-1006. | ||