Plasmopara halstedii(PLASHA)
Distribution details in United States of America
Current pest situation evaluated by EPPO on the basis of information dated
2019: Present, restricted distribution
From CABI Disease map 286 (1988): Present, widespread
From CABI Disease map 286 (1988): Present, widespread
* Gulya, T. J.; Carson, M. L.; Urs, R. (1982) Phytopathology 72 (8), 1136.
------- Contains information on distribution of race 3.
* 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.
------- On the ornamental, Ageratum houstonianum, in Florida.
* 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.
------- On the ornamental Rudbeckia fulgida.
* 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.
------- On the ornamental Coreopsis grandiflora.
------- Contains information on distribution of race 3.
* 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.
------- On the ornamental, Ageratum houstonianum, in Florida.
* 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.
------- On the ornamental Rudbeckia fulgida.
* 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.
------- On the ornamental Coreopsis grandiflora.
| Country | State | Status | |
|---|---|---|---|
| Canada | Saskatchewan | Present, no details | |
| Canada | Nova Scotia | Present, no details | |
| Canada | Ontario | Present, no details | |
| Canada | Québec | Present, no details | |
| Canada | Manitoba | Present, no details | |
| Canada | Present, restricted distribution |