Platanera
How to recognize and combat nematodes in banana trees
Nematodes
Nematode
Type:
Risk to the plant:
CRITICAL
Nematodes
Pathogen:
Nematodos
WHO CAUSES IT?
Nematodes are elongated microscopic microorganisms that live in the soil and can seriously affect the roots of many plants, including banana trees. There are several harmful species, such as Radopholus similis and Pratylenchus spp., that penetrate root tissues to feed and reproduce. These nematodes go through different phases of development, starting as eggs laid in the soil or inside the affected roots. Larvae emerge from the eggs and go through several molts before reaching the adult phase, at which time they can continue feeding or reproduce. Some nematodes are migratory and actively move through the soil in search of new roots, while others are sedentary and remain in a single point within the plant tissue. Infestation increases with favorable temperature and humidity conditions, and the accumulation of high populations can seriously weaken the banana tree.
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SYMPTOMS
The banana tree affected by nematodes suffers progressive damage to its root system, which limits the absorption of water and nutrients, weakening the plant and reducing fruit production. Infested roots develop necrosis and lesions that facilitate the entry of opportunistic fungi and bacteria, accelerating the deterioration of the crop.
- Roots with necrotic lesions and partial or total rot.
- Loss of vigor and delayed growth.
- Yellowing and wilting of foliage.
- Reduction in the size and quality of the fruits.
- Greater susceptibility to secondary infections.
- Facilitates the fall of the plant in serious cases due to loss of anchorage.
DEVELOPMENT CONDITIONS
Temperature:
22°C - 30°C
Humidity:
70% - 90%
HOW IS IT SPREAD?
Active mobility in soil, contaminated irrigation water, infected agricultural tools, host plants, soil adhered to machinery or footwear
HOW TO ELIMINATE IT?
Home treatments
There are no home treatments
Natural allies
Chemical treatments
There are no treatments for this disease. Treatments are directed at the insect vectors that transmit it. See insect treatments.
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