Acelga
How to recognize and combat chard leaf miner or fly
Leafminer Or Chard Fly
Insect
Type:
Risk to the plant:
HIGH
Pegomya Betae
Pathogen:
Minadores
WHO CAUSES IT?
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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SYMPTOMS
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.
DEVELOPMENT CONDITIONS
Temperature:
15ºC - 25ºC
Humidity:
60% - 80%
HOW IS IT SPREAD?
Direct contact, gardening tools, wind, movements of contaminated soil, infested plants.
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.
RECOMMENDED PRODUCTS TO ELIMINATE THE PEST
REPELLENT PLANTS
RECOMMENDATIONS
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