Virus
Potato Y Virus
Potato Virus Y (Pvy)
Pathogen:
Virus
Type:
Risk to the plant:
HIGH
DESCRIPTION
WHO CAUSES IT?
Potato virus Y (PVY) is one of the most important and destructive viruses affecting potato crops. Its life cycle involves infection of the host plant, followed by reproduction and dissemination of the virus. It is mainly transmitted by aphids (aphids), which feed on plant sap and transport the virus from one plant to another. The virus can also be transmitted through infected seeds or tubers, as well as through contact with contaminated tools or materials.
SYMPTOMS
Potato virus Y produces a variety of symptoms on the plant, which can vary in severity depending on the strain of the virus and the susceptibility of the potato variety. Symptoms may include leaf mosaic, necrosis, leaf curling, and stunted growth. In tubers, the virus can cause deformities and Taches, affecting the quality of the harvest.
• Mosaic on potato leaves.
• Necrosis and Taches on the leaves.
• Leaf curling and stunted growth.
• Deformities and Taches on the tubercles.
TEMPERATURE AND HUMIDITY
20°C - 25°C
60% - 80%
HOW IS IT SPREAD?
Aphid vectors, contact with infected seeds or tubers, contact with contaminated tools or materials.
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 potato varieties resistant to PVY.
• Control aphid vector populations using specific insecticides or biological methods.
• Avoid the use of infected seeds and tubers, using only certified material.
• Practice crop rotation to interrupt the life cycle of the virus.
• Maintain good hygiene in cultivation tools to prevent spread.
• Regularly monitor crops for early signs of the disease.
Recommendations
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