Micosis/Hongos
WHAT IS AND HOW TO ELIMINATE
Brown Spot
Rhizoctonia Solani
Pathogen:
Fungus
Type:
Risk to the plant:
HIGH
DESCRIPTION
WHO CAUSES IT?
Rhizoctonia solani is a phytopathogenic fungus that affects a variety of crops, including grass, causing the disease known as brown spot. The fungus produces resistance structures called sclerotia that can survive in soil and plant debris for long periods. Sclerotia germinate under favorable conditions, producing hyphae that can infect the roots and other parts of the plant. The fungus can also produce mycelium that spreads in the soil and moves to new plants.
SYMPTOMS
Brown spot on grass caused by Rhizoctonia solani manifests itself with the appearance of circular brown Taches on the grass. The Taches can vary in size and often have a darker ringed edge. As the disease progresses, the grass may weaken and die, leaving bare areas.
• Circular brown Taches on the grass.
• Darker ringed edges around the Taches.
• Weakening of the grass and possible death in affected areas.
• Reduction in the quality and density of the grass.
TEMPERATURE AND HUMIDITY
20°C - 30°C
70% - 90%
HOW IS IT SPREAD?
Soil, infected plant remains, contact with contaminated tools.
HOW TO REMOVE IT?
Home remedies
There are no home treatments
Chemical treatments
• AZOXISTROBIN 50% [WG] P/P
• PIRACLOSTROBIN 6.7% + BOSCALIDE 26.7% ( ) [WG] P/P
Authorized treatments in organic farming
-
Insect allies
EFFECTIVE PRODUCTS TO ELIMINATE THIS PEST
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Effective against all types of fungi
• Practice good irrigation management to avoid excess moisture in the grass.
• Improve air circulation around the grass to reduce humidity.
• Practice crop or turf rotation to reduce pathogen pressure in the soil.
• Use specific fungicides following local recommendations.
• Disinfect gardening tools and equipment to prevent spread.
• Remove and destroy infected areas of grass and plant debris.
Recommendations
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