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Fusarium Wilt
Fusarium Sp.
Pathogène :
Fungus
Type:
Risque:
CRITICAL
Fusariosis
Descrição da doença
Fusarium sp. It is a genus of fungi that includes numerous species pathogenic for a wide variety of plants. In avocado, Fusarium sp. It causes the disease known as fusarium wilt. This fungus can survive in the soil and in plant remains such as chlamydospores, which are structures resistant to adverse conditions. When conditions are favorable, chlamydospores germinate and produce mycelium, which colonizes plant roots through wounds or natural openings. Once inside, the fungus spreads through the vascular system, clogging the vessels and producing toxins that interfere with the transport of water and nutrients. Fusarium sp. It also produces asexual spores called conidia, which are spread by wind, water, and through contaminated growing tools. Sexual reproduction is less common, but can occur under certain environmental conditions, contributing to the genetic diversity and adaptive capacity of the pathogen.
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Descrição do patógeno
Fusarium wilt in avocado is a disease that mainly affects the vascular system of the plant, resulting in a deficiency in the transport of water and nutrients. The fungus invades the roots and spreads through the xylem, causing wilting and eventually death of affected plants.
- Withering of leaves and branches
- Yellowing and premature leaf fall
- Necrotic lesions on roots and stems
- Vascular discoloration (brown streaks in the xylem)
- Reduction in plant growth and vigor
- Death of the plant in severe cases
TEMPERATURA E UMIDADE
25-30°C
60-80%
CAMINHOS DE TRANSMISSÃO</span
Wind, Water, Contaminated tools, Infected soil, Infected plant material
CONTROL
Tratamento químico
• CIPRODINIL 37.5% + FLUDIOXONIL 25% [WG] P/P
Tratamento biológico
-
Traitements biologiques
• BACILLUS AMYLOLIQUEFACIENS subsp. plantarum (strain D747) 5% [SC] P/V
• BACILLUS SUBTILIS (STRAIN QST 713) 1.34% [SC] P/V
• TRICHODERMA ASPERELLUM (STRAIN T25) (1X10E8 CFU/G) 0.5% + TRICHODERMA ATROVIRIDE (STRAIN T11) (1X10E8 CFU/G) 0.5% [WG] P/P
• TRICHODERMA ASPERELLUM (STRAIN T34) 12% (1.0 x 10E12 cfu/kg) [WP] P/P
• TRICHODERMA ATROVIRIDE (STRAIN I-1237) (1x10E8 cfu/g) 5% [WP] P/P
Recomendações
- Use Fusarium-resistant avocado varieties.
- Implement crop rotation to reduce the accumulation of Fusarium in the soil.
- Avoid the use of contaminated soils and guarantee good drainage to prevent favorable conditions for the fungus.
- Disinfect pruning and cultivation tools to prevent the spread of the fungus.
- Apply specific fungicides preventively, especially in areas with a history of the disease.
- Perform soil analysis and apply organic amendments that promote soil health and microbial competition.
- Regularly monitor crops for early symptoms and remove affected plants to prevent spread.
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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