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The Guide to Caring for Your Plants

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Learn to recognize pests and how to combat them

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Pest Guide

Symptoms, treatments and recommendations for treating fusariosis

Fusariosis

Fusarium sp.

Pathogen:

Fungus

Type:

Risk:

HIGH

Fusariosis

Plantas decorativas de jardín y/o interior

Fusarium wilt: Symptoms and damage on decorative garden and/or indoor plants

Fusarium damage to decorative garden and/or indoor plants

WHO CAUSES IT?

Fusarium sp. It is a genus of filamentous fungi that lives both in the soil and in plant tissues. It is characterized by producing spores called macroconidia and microconidia, as well as resistance structures known as chlamydospores, which can survive in adverse conditions for long periods. These structures allow it to persist in plant remains and contaminated soil. When conditions are favorable, it germinates and colonizes weakened roots or tissues, penetrating wounds or through natural openings. From there, it invades the vascular tissues, especially the xylem, moving through the conductive vessels and blocking the flow of water and nutrients. This internal colonization favors the appearance of characteristic symptoms in plants, which progressively worsen. The pathogen can also reproduce and be released back into the environment through spores that are spread by water, tools or vectors.

SYMPTOMS

Fusarium wilt is a disease caused by various species of Fusarium that affects a wide range of plants. In plants, it causes progressive wilting, chlorosis, leaf necrosis and general weakening. The roots and base of the stem may show rot, with internal discolorations in the conducting vessels. The progression of the disease compromises growth and productivity, and in many cases ends with the death of the plant.
- Progressive wilting
- Leaf yellowing
- Necrosis in leaves and stems
- Brown stretch marks in the vascular tissue
- Delayed growth
- Root rot
- Premature leaf fall
- Structural weakening of the plant
- Total collapse in advanced stages

Fusarium wilt in decorative garden and/or indoor plants: How to recognize and treat it effectively

TEMPERATURE AND HUMIDITY

24°C - 30°C

65% - 90%

TRANSMISSION ROUTES

Irrigation water, Contaminated soil, Infected plant remains, Agricultural tools, Wind, Vector insects, Contaminated seeds

Do you want to remove this pest? Choose how you want to treat it.

TREATMENTS

Chemical treatments

Authorized treatments in organic farming

Biological control

Recommendations

- Rotate crops with species not susceptible to the fungus for at least 3 years to reduce the load of the pathogen in the soil
- Use certified seeds and plant material free of Fusarium
- Improve soil drainage to avoid moisture accumulation that favors the development of the fungus.
- Avoid wounds on roots and stems during agricultural work that facilitate the entry of the fungus.
- Disinfect agricultural tools and machinery after each use, especially if you have worked on affected plots
- Eliminate remains of infected crops and do not incorporate them into the compost
- Apply biological products with antagonists such as Trichoderma spp. that inhibit the development of Fusarium
- Avoid excessive fertilization with nitrogen, as it weakens the plant's natural defenses
- Perform soil analysis to detect the presence of the pathogen before planting sensitive crops
- Apply specific fungicides preventively in high-risk conditions, following technical recommendations