Alternariosis
WHAT IS AND HOW TO ELIMINATE
Alternariosis
Alternaria Spp.
Pathogen:
Fungus
Type:
Risk to the plant:
INTERMEDIATE
DESCRIPTION
WHO CAUSES IT?
The Alternaria pathogen is a common fungus that can be found in different environments, including soil, plants, water and air. This genus of fungi includes various species that can cause diseases in plants, animals and even humans. In the context of agriculture, Alternaria can be a significant problem, especially in crops such as tomatoes, potatoes and cannabis.
SYMPTOMS
Alternaria can cause a disease known as Alternariosis in cannabis plants. Symptoms of this disease include the appearance of necrotic Taches on the leaves, stems and flowers of the plant. These Taches may start out as small lesions that eventually expand and become darker, causing overall weakening of the plant and a reduction in yield.
TEMPERATURE AND HUMIDITY
20ºC - 30ºC
60% - 80%
HOW IS IT SPREAD?
Air, irrigation water, contaminated soil, infected seeds.
HOW TO REMOVE IT?
Home remedies
There are no home treatments
Chemical treatments
• AZOXISTROBIN 20% + DIFENOCONAZOLE 12.5% [SC] P/V
• AZOXISTROBIN 25% [SC] P/V
• CIPRODINIL 37.5% + FLUDIOXONIL 25% [WG] P/P
• FLUXAPYROXAD 7.5% + DIFENOCONAZOLE 5% [SC] P/V
• POTASSIUM PHOSPHONATES 51% (Exp. as phosphorous acid) [SL] P/V
• PIRACLOSTROBIN 6.7% + BOSCALIDE 26.7% ( ) [WG] P/P
• PIRACLOSTROBIN 6.7% + BOSCALIDE 26.7% (I) [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
To prevent and control Alternariosis in cannabis plants, it is important to implement integrated pest management practices. This includes selecting resistant varieties, rotating crops, controlling weeds, using cultural practices that promote good air circulation and adequate drainage, and timely removal of infected plants to prevent the spread of the fungus.
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