Author
Martin, Robert | |
TZANETAKIS, I - OREGON STATE UNIVERSITY |
Submitted to: Proceedings of the Oregon Horticultural Society
Publication Type: Proceedings Publication Acceptance Date: 1/26/2005 Publication Date: 4/1/2006 Citation: Martin, R.R., Tzanetakis, I.E. 2006. Viruses involved in strawberry decline vary by region and vectors present. Proceedings of the Oregon Horticultural Society. Available: http://www.oregonhorticulturalsociety.org/newsletter/newsletter.php?article=269&month=§ion=15&n_id=10&rank=5 Interpretive Summary: Technical Abstract: Since the 2002 growing seasons, strawberry plants in coastal California, northern Washington and British Columbia have developed symptoms of leaf reddening, stunting and plant death. Up to five viruses were identified in declining plants in these areas. In California, the majority of the plants (75%) were infected with Strawberry pallidosis associated and Beet pseudo-yellows viruses, the two criniviruses that infect strawberry, while the aphid-borne viruses, Strawberry mild yellow edge (SMYEV), Strawberry mottle (SMoV) and Strawberry crinkle (SCV) viruses, were found in 20-25% of the plants. The presence of two viruses thought not to occur in the United States and Canada, Strawberry latent ringspot and Fragaria chiloensis latent viruses, were identified in California and British Columbia. In British Columbia, the majority of the plants (close to 100%) were found to be infected with SMYEV, SMoV, SCV and Strawberry vein banding virus while the whitefly transmitted viruses were very rare. The incidence of whitefly transmitted viruses in California was lower in 2004 probably due to grower awareness and whitefly control efforts. In 2003 and 2004, we also identified decline in strawberries in Oregon, though it was not as widespread as it is in northern Washington and British Columbia. |