Virus
Raspberry curl virus (RPRSV): what it is, how it originates, and how to eliminate it effectively.
Raspberry Curl Virus (Rprsv)
Raspberry Ringspot Virus (Rprsv)
Pathogen:
Virus
Type:
Risk to the plant:
HIGH
DESCRIPTION
WHO CAUSES IT?
Raspberry ringspot virus (RpRSV) is a pathogen that primarily affects raspberries, but can also infect other plants. This virus is transmitted by nematodes of the Longidorus genus, specifically Longidorus elongatus and Longidorus attenuatus, which acquire the virus by feeding on infected roots. Nematodes can retain and transmit the virus for several months. RpRSV has a single-stranded RNA genome that replicates in host cells, using cellular machinery to produce new viral particles. These particles accumulate in the roots and spread throughout the plant through the vascular system, causing visible symptoms on the leaves and fruits. Under favorable conditions, the virus can survive in the soil in the absence of a host for several years, complicating its eradication.
SYMPTOMS
Raspberry curl virus (RpRSV) infection in raspberries causes a series of symptoms that can significantly reduce fruit production and quality. Infected plants show a decrease in vigor, leading to lower production capacity and fruits of smaller size and quality.
- Chlorotic ring-shaped Taches on the leaves.
- Dwarfism and delayed plant growth.
- Reduction in the size and quantity of fruits.
- Regressive death of shoots.
- Deformation of leaves and fruits.
- Greater susceptibility to other diseases and environmental stress.
TEMPERATURE AND HUMIDITY
15°C - 25°C
70% - 90%
HOW IS IT SPREAD?
Nematodes, contact with contaminated tools, spread of infected plant material
HOW TO REMOVE IT?
Home remedies
There are no home treatments
Chemical treatments
There are no effective treatments against viruses, the treatments are focused on combating the insect or vector carrying the virus (SEE AVAILABLE TREATMENTS AGAINST INSECTS)
Authorized treatments in organic farming
There are no effective treatments against viruses, the treatments are focused on combating the insect or vector carrying the virus (SEE AVAILABLE TREATMENTS AGAINST INSECTS)
Insect allies
PREDATORY MITES
LADYBUGS
LACEWINGS
PARASITIC WASPS
HOVERFLIES OR PARASITIC FLIES
PREDATORY BUGS
There are no natural allies
Mycodiplosis oidii (predatory mosquito)
EFFECTIVE PRODUCTS TO ELIMINATE THIS DISEASE
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- Use certified virus-free raspberry plants for new plantations.
- Implement crop rotations with non-host plants to reduce the population of nematode vectors.
- Apply nematicidal treatments to the soil before planting to control the nematode population.
- Maintain rigorous control of weeds that can act as reservoirs of the virus.
- Regularly inspect plantations and eliminate infected plants to prevent the spread of the virus.
- Promote growing practices that improve overall soil health and plant resistance.
- Avoid excessive irrigation and waterlogging that favor the activity of nematodes.
- Implement physical barriers such as geotextile meshes to limit the movement of nematodes in the soil.
- Train agricultural workers in the identification and management of the disease for early detection and rapid response.
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