Bushy Dwarf Virus
HOSTS
- Black and Red Raspberry
- Blackberry
DESCRIPTION
Raspberry bushy dwarf virus is a disease that was once common in the Bear Lake area, but has since been reduced to a few spotty outbreaks. It is also known to occur in other parts of the state. It has not been reported yet this season.
This virus is usually introduced to a site on infected planting stock. It is then spread by pollen on honeybees from plant to plant. Black and red raspberries and some blackberries are susceptible, but some cultivars may be more resistant. The old standby ‘Canby’ is very susceptible, as is ‘Meeker.’ Fruit of infected plants is only useful for value-added products such as jams, jellies, or juice.
BIOLOGY
Bushy dwarf virus is a pollen-borne virus...
SYMPTOMS
- Crumbly fruit
- Stunted plants with poor fruit set
- Bright yellow streaks on leaf veins
- Concentric rings or random line patterns on leaves
GENERAL MANAGEMENT
Monitoring:
Watch for....
There are no products labeled for use. When planting, use clean stock. ‘Willamette’ and ‘Chilcotin’ red raspberries are immune. ‘Haida’, ‘Comox’, and ‘Heritage’ are moderately resistant.