Viola spp.
viola, pansy
3 Related Pests
Tobacco rattle virus
virus
Aster ringspot virus, Belladonna mosaic virus,Paeony mosaic virus, Paeony ringspot virus,Peony mosaic virus, Peony ringspot virus,Potato corky ringspot virus, Potato stem mottle virus,Ratel virus, Spinach yellow mottle virus, Tabakmauche Virus, Tabakstreifen und Kra, Tobacco rattle tobravirus,Tulip white streak virus
Worldwide
Widespread
Korea
2021-04-22 17:52:01
Transmitted in nature primarily by trichodorus and paratrichodorus nematodes. Seed is only known to be a pathway in some weed species.
Extensive host range
No
TRV000-4,TRV000-1,
Reference above found seed of Veronica arvensis, European field pansy to be a pathway and overwintering reservoir. There is no evidence that seed of domesticated violets and pansies are pathways.
TRV000-4,TRV000-1,
Cooper, J. I., and Harrison, B. D. (1973a). The role of weed hosts and the distribution and activity of vector nematodes in the ecology of tobacco rattle virus. Ann. Appl. Biol. 73:53–66.
Tobacco rattle virus. In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Aphelenchoides fragariae
nematode
Aphelenchoides olesistus, Aphelenchoides olesistus var. longicollis, Aphelenchoides pseudolesistus
Worldwide, though limited reports in Africa, South America, Canada, Caribbean
Widespread
China
2023-08-21 22:00:59
This nematode has been reported in China
Primarily a pest of strawberry, ferns, ornamentals and flowers of the Liliaceae family. Reported in onion, but not confirmed as a host.
No
APLOFR-3,NEMAPLEX,
There is no evidence that Viola spp. seed is pathway. Only literature found indicates seed of Anthrium may be a pathway for this nematode (APLOFR-1).
APLOFR-3,NEMAPLEX,
Mycocentrospora acerina
fungus
Centrospora acerina, Cercospora acerina
China, Japan, Chile, Bulgaria, France , Netherlands, Norway, Sweden, United Kingdom
WA, AK, CA, GA, NC
Brazil, China
2022-04-13 18:00:16
celery, carrot, lettuce, caraway. Weeds are common hosts
Yes
MYCCAC-6,MYCCAC-8
Seed pathway is uncommon, but possible
MYCCAC-6,MYCCAC-8
Direct microscopic evaluation and plating has been described for caraway seed.
MYCCAC-8,
Seed production in dry climates and without overhead irrigation and from reliable producers essentially eliminates this seed borne pathogen.
Gill,D.L., 1971. Centrospora acerina carried by Pansyseed.Plant Disease Reporter 55:731-732.
Chase, AR and Daughtrey, ML. 2018. Compendium of Bedding Plant Diseases and Pests. Eds. A. R. Chase, M. L. Daughtrey and R. A. Cloyd. The American Phytopathological Society, St. Paul, MN. USA
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