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Leafminer Or Chard Fly
Pegomya Betae
Pathogène :
Insect
Type:
Risque:
HIGH
Minadores
Descrição da doença
Pegomya betae, also known as the chard fly or chard miner, is a dipteran insect of the Anthomyiidae family. This pest is especially harmful to chard and beet crops. The adult female lays her eggs on the surface of the leaves. When the larvae hatch, they enter the leaf tissue and begin feeding between the upper and lower epidermis of the leaf, creating visible, serpentine mines. The larvae go through several molts before reaching maturity, at which point they emerge from the leaf and fall to the ground to pupate. The pupa, which develops in the soil, gives rise to a new adult that emerges to continue the cycle. This process can be repeated several times during the growing season, especially under favorable temperature and humidity conditions.
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Descrição do patógeno
In chard, Pegomya betae causes a disease that mainly affects the leaves, compromising both the quality and quantity of the plant's yield. The mines created by the larvae reduce the photosynthetic capacity of the leaves, weakening the plant and making it more susceptible to other diseases and adverse conditions.
• Presence of serpentine, whitish mines on the leaves.
• Withered or deformed leaves.
• Necrotic Taches where larvae have been feeding.
• Decrease in the general vigor of the plant.
• Reduction in plant growth and yield.
• Greater susceptibility to secondary infections.
TEMPERATURA E UMIDADE
15ºC - 25ºC
60% - 80%
CAMINHOS DE TRANSMISSÃO</span
Direct contact, gardening tools, wind, movements of contaminated soil, infested plants.
CONTROL
Tratamento químico
• DELTAMETHRIN 2.5% [EW] P/V
• LAMBDA CYHALOTHRIN 10% [CS] P/V
• LAMBDA CYHALOTHRIN 10% [CS] P/V
Tratamento biológico
• LAMBDA CYHALOTHRIN 10% [CS] P/V
• LAMBDA CYHALOTHRIN 10% [CS] P/V
Traitements biologiques
-
Recomendações
• Carry out regular plant monitoring to detect the presence of eggs and larvae early.
• Use yellow sticky traps to capture adults and reduce the population.
• Implement a crop rotation, avoiding planting chard or beets in the same place for several consecutive seasons.
• Maintain field hygiene by eliminating infected plant remains to reduce inoculum sources.
• Apply specific insecticide treatments in case of severe infestations, following local recommendations and regulations.
• Encourage the presence of natural enemies such as parasitoid wasps and predators that can help control the pest population.
• Use soil covers to make it difficult for larvae to access the soil to pupate.
• Consider using trap crops to attract adult flies away from the main crop.
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 leaves frequently, especially the young ones, to detect the first signs of damage.
- Remove and destroy affected leaves to cut the insect cycle
- Avoid excess nitrogen in the fertilizer, as it attracts leafminers more.
- Attracts beneficial insects such as small wasps that attack leafminers
- Use yellow sticky traps to monitor the presence of adults
- If there is a lot of presence, apply a natural insecticide such as Neem oil or potassium soap following the directions on the product.
Plantes répulsives
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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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