Polillas
Panicle moth or case moth: what it is, how it originates, and how to eliminate it effectively.
Tassel Moth Or Case Moth
Phereoeca Uterella
Pathogen:
Insect
Type:
Risk to the plant:
INTERMEDIATE
DESCRIPTION
WHO CAUSES IT?
Phereoeca uterella, known as the case moth, is a small lepidopteran of the Tineidae family. This moth is notable for its larvae, which build small protective cases from silk and environmental materials. Adult females lay eggs in dark, protected places near food sources. The larvae emerge and feed on various organic materials, carrying their cases as they move. These larvae go through several larval stages before pupating inside their cases. The pupal phase culminates with the emergence of adults, which are nocturnal and live only a few days, during which time they mate and the females lay new eggs, restarting the cycle.
SYMPTOMS
The panicle moth or case moth, caused by Phereoeca uterella, affects quinoa by feeding on plant parts, mainly during its larval phase. The larvae hide in protective cases and can cause significant damage to the plant by consuming plant tissue and weakening the plant's structure.
- Presence of small silk cases attached to the plant.
- Damage to leaves and stems, with eaten areas.
- Loss of vigor in the plant.
- Delay in plant growth.
- Damage to the panicles, affecting performance.
- Evidence of larvae inside the cases.
TEMPERATURE AND HUMIDITY
20-30°C
60-80%
HOW IS IT SPREAD?
Larval movement, Adult dispersal, Contaminated tools, Infested plant material, Wind
HOW TO REMOVE IT?
Home remedies
There are no home treatments
Chemical treatments
• AZADIRACTIN 1% (AS AZADIRACTIN A) [EC] P/V
• Azadirachtin 2.6% (AS AZADIRACTIN A) [EC] P/V
• MOTH TRAPS
Treatments allowed in organic farming
• AZADIRACTIN 1% (AS AZADIRACTIN A) [EC] P/V
• Azadirachtin 2.6% (AS AZADIRACTIN A) [EC] P/V
• MOTH TRAPS
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
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- Regularly monitor quinoa plants for the presence of silk cases and larvae.
- Implement a crop rotation to reduce the continuous presence of the moth.
- Use pheromone traps to monitor and reduce adult populations.
- Keep the growing area clean, eliminating plant debris and debris that could serve as a refuge for the larvae.
- Encourage the presence of natural enemies, such as parasitoid wasps, which can control larval populations.
- Apply specific and ecological phytosanitary treatments, respecting the recommended doses and times to avoid resistance.
- Maintain adequate control of humidity and ventilation of the crop to create a less favorable environment for larvae.
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