Cecidophyopsis ribis
| Cecidophyopsis ribis | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Class: | Arachnida |
| Family: | Eriophyidae |
| Genus: | Cecidophyopsis |
| Species: | C. ribis
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| Binomial name | |
| Cecidophyopsis ribis (Westwood), 1869
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Cecidophyopsis ribis is an
Biology
Buds affected by Cecidophyopsis ribis become swollen and globular and fail to develop normally. They are first noticeable in the autumn when they are unpointed and twice as large as normal buds. Inside the bud, between the closely folded leaves, are thousands of small, spherical
Blackcurrant reversion disease
The virus causing blackcurrant reversion is transmitted by Cecidophyopsis ribis. The characteristic leaf symptoms are a smaller number of leaf lobes and a decrease in the number of teeth on the serrated edge of the leaves. The flowers also show symptoms, with the buds being less hairy than normal and, in a severe form of the disease present in Russia and Scandinavia, the sepals appearing to be doubled in number to ten.[4] The vigor of the bush is reduced, and fruit yields diminish. Although spread of the mite can be prevented to some extent, badly affected bushes should be destroyed and replaced with virus-free stock.[3]
Until 2019 the virus was found everywhere blackcurrants grew except North America and Australia. However, in 2019 it was detected for the first time in Oregon, United States. Although these mites are the only known vector, the mites themselves have not been found. It is unknown whether something else is vectoring the pathogen or if this evidences another transmission route is working in this area.[5]
Distribution
Cecidophyopsis ribis is found mainly in Europe and Asia, but has also reached New Zealand. It is not found in North America or Australia[5] [6][7] and quarantine restrictions apply to the import of susceptible plants.[1]
References
- ^ a b Hummer, Kim; Postman, Joseph (2000-03-01). "Black Currant Gall Mite". Currant and Gooseberry Pests. USDA/ARS National Clonal Germplasm Repository. Archived from the original on 2012-09-26. Retrieved 2013-03-09.
- ^ Łabanowska, Barbara H.; Pluta, Stanisław (2010). "Assessment of big bud mite (Cecidophyopsis ribis Westw.) infestation level of blackcurrant genotypes" (PDF). Journal of Fruit and Ornamental Plant Research. 18 (2): 283–295.
- ^ a b c "Which magazine: Blackcurrant reversion" (PDF). Archived from the original (PDF) on 2019-08-17. Retrieved 2013-03-09.
- ^ Hummer, Kim; Postman, Joseph (2000-03-01). "Black Currant Reversion Virus". Currant and Gooseberry Pests. USDA/ARS National Clonal Germplasm Repository. Archived from the original on 2012-09-26. Retrieved 2013-03-09.
- ^ .
- ^ "New virus associated with blackcurrant reversion disease".
- ^ "Cecidophyopsis ribis - CABI Invasive Species Compendium".
| Authority control databases: National |
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