Fusariosis
Fusarium wilt: what it is, how it occurs, and how to eliminate it effectively
Fusariosis
Fusarium Oxysporum F.Sp. Cucumrinum
Pathogen:
Fungus
Type:
Risk to the plant:
HIGH
DESCRIPTION
WHO CAUSES IT?
Fusarium wilt is a fungal disease caused by different species of the genus Fusarium, which affects a wide range of plants, including cucurbits. This pathogen can survive in soil for long periods of time and can enter plants through wounds in roots or stems, or by germination of spores under favorable conditions.
SYMPTOMS
In cucurbits, fusariosis causes symptoms such as sudden wilting of the plant, yellowing and necrosis of the leaves, as well as the decomposition of the internal tissues of the stems and fruits. These symptoms can appear gradually and progress rapidly, eventually leading to the death of the plant if the disease is not controlled in time.
TEMPERATURE AND HUMIDITY
25°C - 30°C
70% - 90%
HOW IS IT SPREAD?
Contaminated soil, infected seeds, crop remains, contaminated irrigation water, agricultural tools, transportation of infected plants.
HOW TO REMOVE IT?
Home remedies
There are no home treatments
Chemical treatments
• AZOXISTROBIN 12% + TEBUCONAZOLE 20% [SC] P/V
• AZOXISTROBIN 25% [SC] P/V
• CIPRODINIL 37.5% + FLUDIOXONIL 25% [WG] P/P
• TEBUCONAZOLE 25% [EW] P/V
Treatments allowed in organic farming
-
Insect allies
PREDATORY MITES
LADYBUGS
LACEWINGS
PARASITIC WASPS
HOVERFLIES OR PARASITIC FLIES
PREDATORY BUGS
There are no natural allies
Mycodiplosis oidii (predatory mosquito)
EFFECTIVE PRODUCTS TO ELIMINATE THIS DISEASE
To prevent fusariosis in cucurbit crops, it is important to practice crop rotation and avoid monoculture, as this can reduce the accumulation of pathogens in the soil. In addition, it is recommended to maintain a good soil structure and adequate drainage to avoid waterlogging, which favors the development of Fusarium. It is also useful to use resistant varieties when possible and avoid planting in soil contaminated with the pathogen.
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