Author
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TZANETAKIS, I - University Of Arkansas |
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Martin, Robert |
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Submitted to: North American Strawberry Conference Abstracts
Publication Type: Abstract Only Publication Acceptance Date: 7/18/2011 Publication Date: N/A Citation: N/A Interpretive Summary: Technical Abstract: Strawberry production is increasing annually, with the world production exceeding four million tons. Virus diseases of strawberry are also increasing as the crop is planted in new regions and exposed to new viruses. A decade ago there were about a dozen viruses known to infect strawberry. There are now five aphid-transmitted viruses - Crinkle, Mottle, Mild yellow edge, Vein banding and Chlorotic fleck. Whitefly-transmitted viruses have become more important, four members of the genus Crinivirus and one geminivirus have emerged as a new threat to strawberry in areas where vectors are present. The ilarviruses that infect strawberry include Strawberry necrotic shock (previously misdiagnosed as Tobacco streak virus), Apple mosaic, Tobacco streak and Fragaria chiloensis latent viruses. Strawberry necrotic shock is the predominant ilarvirus in the United States whereas Fragaria chiloensis latent has significant presence in Chile. Modern strawberry cultivation has minimized the impact of nematode transmitted viruses but the elimination of methyl bromide may lead to the reemergence of this group of viruses in the future. With the knowledge we have acquired over the last decade it is now possible to have robust certification systems, the cornerstone for minimizing the impact and spread of strawberry viruses. With the massive increase of strawberry production in China recently, it will be curious to see if new viruses endemic to the area will infect strawberry. The results of a virus survey and virus testing over the past eight years will be presented to highlight which viruses are most prevalent in regions of North America. |
