Gorgojos
Blackberry weevil or blackberry weevil: what it is, how it originates, and how to effectively eliminate it.
Virgin Burrita Or Blackberry Weevil
Compsus Sp
Pathogen:
Insect
Type:
Risk to the plant:
INTERMEDIATE
DESCRIPTION
WHO CAUSES IT?
Compsus sp., commonly known as the "virgin burrita", is an insect belonging to the family Curculionidae. Adults are small, metallic green beetles that feed mainly on leaves and young shoots. The females lay their eggs on the foliage, and after hatching, the larvae fall to the ground where they develop, feeding on the roots. This larval development can last several weeks, depending on environmental conditions. Upon completing their development, the larvae pupate in the soil, emerging as adults after a few weeks. Adults can live for several months, reproducing and perpetuating the cycle. The activity of Compsus sp. It is closely linked to climatic conditions, being more active in hot and humid climates.
SYMPTOMS
In blackberries, infestation by Compsus sp. It causes a disease that manifests itself through various symptoms due to the direct damage caused by both the adults and the larvae. The adults feed on the leaves and shoots, causing defoliation and reduction of the photosynthetic area, which weakens the plant and reduces its productivity. The larvae, by feeding on the roots, interfere with the absorption of water and nutrients, which can lead to poor growth and wilting.
- Defoliation of leaves and shoots
- Damage to roots that causes poor growth
- Reduction in plant vigor
- Yellowing and wilting of leaves
- Presence of adults on the leaves
- Visible damage to new and tender shoots
TEMPERATURE AND HUMIDITY
20-28°C
60-80%
HOW IS IT SPREAD?
Movement of infected plant material, wind, contaminated tools, direct contact between infested and healthy plants
HOW TO REMOVE IT?
Home remedies
There are no home treatments
Chemical treatments
• ORANGE OIL 60g/L [ME] P/S
• AZADIRACTIN 1% (AS AZADIRACTIN A) [EC] P/V
• Azadirachtin 2.6% (AS AZADIRACTIN A) [EC] P/V
• DELTAMETHRIN 2.5% [EC] P/V
• LAMBDA CYHALOTHRIN 1.5% [CS] P/V
• LAMBDA CYHALOTHRIN 10% [CS] P/V
• SPINOSAD 48% [SC] P/V
Authorized treatments in organic farming
• ORANGE OIL 60g/L [ME] P/S
• AZADIRACTIN 1% (AS AZADIRACTIN A) [EC] P/V
• Azadirachtin 2.6% (AS AZADIRACTIN A) [EC] P/V
• LAMBDA CYHALOTHRIN 1.5% [CS] P/V
• LAMBDA CYHALOTHRIN 10% [CS] P/V
• SPINOSAD 48% [SC] P/V
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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- Carry out regular inspections to detect the presence of adults and larvae.
- Remove and destroy infested leaves and shoots to reduce the adult population.
- Implement crop rotations to interrupt the life cycle of the insect.
- Maintain adequate soil health through proper fertilization and irrigation.
- Apply specific insecticide treatments in the critical stages of the pest.
- Use physical barriers around plants to prevent oviposition.
- Promote biodiversity in cultivation to attract natural enemies of the insect.
- Use light traps to monitor and control adult populations.
- Avoid plant stress, since weakened plants are more susceptible to infestation.
- Consult with an integrated pest management specialist for specific control strategies.
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