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Black Rot
Lasiodiplodia Theobromae
Pathogène :
Fungus
Type:
Risque:
HIGH
Pudrición de raíz y tallo
Descrição da doença
Lasiodiplodia theobromae is a phytopathogenic fungus that causes the disease known as black rot in various plants, including avocado. This fungus can survive and persist in crop debris, soil, and infected plant material. During its life cycle, Lasiodiplodia theobromae produces conidia (asexual spores) that are dispersed by wind, irrigation water and other media, infecting healthy plant tissues. In addition, it can form resistance structures, such as chlamydospores, that allow it to resist adverse conditions in the soil and spread to new host plants.
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Descrição do patógeno
Black rot, caused by Lasiodiplodia theobromae, severely affects avocados. General symptoms include:
- Wilting and yellowing of leaves.
- Necrosis and decomposition of roots and plant tissues.
- Fruit rot, with dark and sunken Taches.
- Loss of vigor and premature death of the plant.
TEMPERATURA E UMIDADE
25°C - 30°C
70% - 80%
CAMINHOS DE TRANSMISSÃO</span
Contaminated irrigation water, infected crop remains, contaminated pruning tools, infected plant material
CONTROL
Tratamento químico
• TEBUCONAZOLE 25% [WG] P/P
• CIPRODINIL 37.5% + FLUDIOXONIL 25% [WG] P/P
Tratamento biológico
-
Traitements biologiques
• BACILLUS AMYLOLIQUEFACIENS (strain AH2) (1x10E11 CFU/l) [SC] P/V
• BACILLUS SUBTILIS (strain IAB/BS03) (1 x 10E8 cfu/ml) 10 g/l [SL] P/V
• BACILLUS SUBTILIS (STRAIN QST 713) 1.34% [SC] P/V
Recomendações
- Maintain good soil health by rotating crops and removing plant residues.
- Use appropriate irrigation practices to avoid excess moisture in the soil.
- Disinfect work tools and equipment to prevent the spread of the fungus.
- Apply appropriate pruning techniques to promote air circulation and reduce humidity in the plant.
- Use preventive and curative fungicides according to the manufacturer's recommendations.
- Promote plant resistance through the selection of tolerant varieties and the use of integrated pest and disease management techniques.
TRAITEMENTS
Remèdes maison
There are no home treatments
Alliés naturels
Traitements chimiques
There are no treatments for this disease. Treatments are directed at the insect vectors that transmit it. See insect treatments.
RECOMMANDATIONS
- Check the back of the leaves frequently, especially in dry weather.
- Spray water on the leaves to increase humidity and prevent them from settling.
- Keep plants healthy with good watering and adequate light.
- If you see cobwebs or damage, clean the leaves with a damp cloth or pressurized water.
- Use potassium soap or neem oil every few days until they disappear.
Plantes répulsives
Rosemary, Dill, Coriander
PRODUITS RECOMMANDÉS
*Os tratamentos recomendados ainda são recomendações de acordo com os bancos de dados de autoridades e em nenhum momento substituem as diretrizes estabelecidas de acordo com a legislação de cada país
*Les produits présentés sont des recommandations et ne sont pas nos propres produits. En tant qu'associés Amazon, nous gagnons des revenus grâce aux achats de produits recommandés.
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