Olivo
How to recognize and combat verticillium wilt or olive wilt
Verticillosis Or Dry Olive Tree
Fungus
Type:
Risk to the plant:
CRITICAL
Verticillium Dahliae
Pathogen:
Verticilosis
WHO CAUSES IT?
Verticillium dahliae is a phytopathogenic fungus that causes the disease known as verticillosis or olive dry disease. The fungus can survive in soil and the remains of infected plants for years. It produces resistance structures called microsclerotia, which can remain viable in the soil for long periods of time. These microsclerotia germinate in the roots of the plants, entering the conducting vessels of the olive tree, where they obstruct the flow of water and nutrients.
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SYMPTOMS
Verticillosis or dry olive tree produces symptoms in the leaves, branches and vascular system of the olive tree. The disease causes a reduction in the absorption of water and nutrients, which leads to wilting and death of plant parts.
• Wilting and yellowing of leaves.
• Drying and premature fall of leaves and branches.
• Necrosis in the branches and trunk.
• Reduction in the quality and quantity of the olive harvest.
• Damage to the plant's vascular system.
DEVELOPMENT CONDITIONS
Temperature:
20°C - 30°C
Humidity:
60% - 80%
HOW IS IT SPREAD?
Entry through roots, direct contact with infected plants, contaminated tools.
HOW TO ELIMINATE IT?
Home treatments
There are no home treatments
Natural allies
Chemical treatments
There are no treatments for this disease. Treatments are directed at the insect vectors that transmit it. See insect treatments.
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