Moho blanco
Armillaria, root rot or white root disease: what it is, how it originates, and how to eliminate it effectively.
Armillaria, Root Rot Or White Root Rot
Armillaria Mellea
Pathogen:
Fungus
Type:
Risk to the plant:
HIGH
DESCRIPTION
WHO CAUSES IT?
Armillaria mellea is a phytopathogenic fungus that causes the disease known as armillaria, root rot or white root rot in apple trees and other fruit trees. The fungus spreads through rhizomorphs, root-like structures that spread through the soil and can infect new plants by coming into contact with their roots. Armillaria mellea can survive on dead wood and plant debris, persisting in the soil for long periods.
SYMPTOMS
Armillaria, root rot or root white disease in apple trees produces a decomposition of the roots, which leads to the loss of vigor of the plant and its eventual death. Symptoms may be subtle at first, but may become more obvious as the disease progresses.
• Loss of vigor in the plant.
• Wilting and yellowing of the leaves.
• Appearance of mushrooms at the base of the trunk or near the roots.
• Root decomposition.
TEMPERATURE AND HUMIDITY
20°C - 25°C
70% - 100%
HOW IS IT SPREAD?
Rhizomorphs, contact with infected roots, soil.
HOW TO REMOVE IT?
Home remedies
There are no home treatments
Chemical treatments
-
Treatments allowed in organic farming
-
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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Effective against all types of fungi
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• Improve soil drainage to avoid waterlogging.
• Remove and destroy infected roots and woody parts.
• Practice crop rotation to reduce pathogen pressure in the soil.
• Disinfect pruning tools and equipment to prevent the spread of the fungus.
• Apply specific fungicides following local recommendations.
• Avoid planting apple trees in soils where the disease has been detected.
Recommendations
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