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Updated: September 29, 2017
This virus has a wide host range, including many weeds such as dandelion and chickweed. Other hosts include the following fruit crops: strawberry, blueberry, apple, and peach. Seeds of chickweed and dandelion can be infected, and if spread throughout the field, plants developing from these seeds can serve as sources of infection. Symptoms of the disease vary with raspberry variety. They include yellow ringspots, especially in Royalty, which often disappear in midsummer on the expanding leaves of new shoots. Other symptoms on spring foliage may be streaks or yellowing. Some cultivars produce crumbly fruit, whereas others may eventually die out. Canes are more commonly stunted, and this virus will eventually render a planting unproductive. Fruit is commonly crumbly and small, as with other viruses, which affects pollen viability. Yield and fruit quality in the cultivar Canby appear to be relatively unaffected even when the plants are infected.
Control measures include planting stock that is free of tomato ringspot virus along with roguing of infected plants and their neighbors, which may be symptomless. Weeds should be controlled since they could be a host for the virus.
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