Polillas
Oriental Moth
Grapholita Molesta
Pathogen:
Insect
Type:
Risk to the plant:
HIGH
DESCRIPTION
WHO CAUSES IT?
The pathogen Grapholita molesta, commonly known as the oriental fruit moth, is a lepidopteran belonging to the Tortricidae family. The adults are small gray moths, which emerge from chrysalises in spring and search for hosts to lay their eggs. Females lay their eggs on the leaves, shoots and fruits of trees. The larvae that hatch are white-pink with a black head and quickly begin feeding on plant tissue. Initially they attack young shoots, causing them to wither and later move to the fruits, where they dig tunnels that destroy them from the inside. The larva goes through five larval stages before pupating. Pupation can occur in the bark of the tree or in the soil, depending on environmental conditions. This insect can have several generations a year, especially in warm climates, which increases its capacity to damage crops.
SYMPTOMS
In peach, peach or nectarine, the oriental moth produces a disease that affects both young shoots and fruits, causing serious economic losses. The larvae penetrate the shoots, causing their death, and subsequently feed on the inside of the fruits, completely destroying them and causing them to fall prematurely.
- Withering of young shoots
- Loss of leaves in affected shoots
- Internal damage to the fruits
- Premature fruit drop
- Tunnels inside the fruits
- Presence of larval excrement on the fruits
- Decrease in production and quality of fruits
TEMPERATURE AND HUMIDITY
20-30°C
50-70%
HOW IS IT SPREAD?
Flying adults, wind, movement of infested fruits, transport of infected plants, contaminated growing tools
HOW TO REMOVE IT?
Home remedies
There are no home treatments
Chemical treatments
• (E)-5-DECEN-1-OL 1.1% (5.4mg/diffuser) + (E)-5-DECEN-1-YL ACETATE 18.7% (92.2mg/diffuser) + E- 8-DODECENYLACETATE 2.2% (10.7mg/diffuser) + Z-8-dodecen-1-ol 0.3% (1.3mg/diffuser) + Z-8-DODECENYLACETATE 33.4% (164.8mg/diffuser) diffuser) [VP] P/P
• (E)-5-DECEN-1-YL ACETATE 17.48% + (E)-5-DECEN-1-OL 3.63% + MIXTURE OF (E)-8-DODECEN-1-YL ACETATE + ( Z)-8-DODECEN-1-YL ACETATE + (Z)-8-DODECEN-1-OL 12.5% [AE] P/P
• (Z)-8-DODECEN-1-YL ACETATE 76 g/Kg + (E)-8-DODECEN-1-YL ACETATE 4.8 g/Kg + (Z)-8-DODECEN-1-OL 0, 8 g/Kg [AE] P/P
• (Z/E)-8 DODECENYL ACETATE 90.93% + Z-8-DODECEN-1-OL 0.67% (240 MG AS A MIXTURE OF BOTH S.A./DIFFUSER) [VP] P/P
• ACETAMIPRID 20% [SL] P/V
• (E/Z)-8-dodecen-1-yl acetate 96.2 g/Kg + 51 g/Kg of the mixture of (E)-5-decen-1-yl acetate and (E)-5- decen-1-ol + n-hexadecyl acetate 35.6 g/Kg (1050 mg s.a./diffuser) [VP] P/P
• (Z)-8-DODECEN-1-YL ACETATE 11.63% + (E)-8-DODECEN-1-YL ACETATE 0.75% + (Z)-8-DODECEN-1-YL 0, 12% [AE] P/P
• (Z)-8-DODECEN-1-YL ACETATE 4.65% + (E)-8-DODECEN-1-YL ACETATE 0.3% + Z-8-dodecen-1-ol 0.05% [VP] P/P
• CHLORANTRANILIPROL 20% [SC] P/V
• CHLORANTRANILIPROLE 5.17% [SC] P/V
• DELTAMETHRIN 1.57% [SC] P/V
• DELTAMETHRIN 10% [EC] P/V
• DELTAMETHRIN 2.5% [EC] P/V
• DELTAMETHRIN 2.5% [EW] P/V
• LAMBDA CYHALOTHRIN 1.5% [CS] P/V
• LAMBDA CYHALOTHRIN 10% [CS] P/V
• LAMBDA CYHALOTHRIN 2.5% [WG] P/P
• Mixture of (E)-8-Dodecen-1-yl acetate + (Z)-8-Dodecen-1-yl acetate + (Z)-8-Dodecen-1-ol [AE] P/V
• MIXTURE OF (E/Z)-8-DODECEN-1-YL ACETATE + (Z)-8-DODECEN-1-OL 10% [CS] P/P
• MIXTURE OF (Z,E)-8-DODECEN-1-YL ACETATE + (Z)-8-DODECEN-1-OL 0.358 g/diffuser [VP] P/P
• SPINETORAM 25% [WG] P/P
Treatments allowed in organic farming
• (E)-5-DECEN-1-OL 1.1% (5.4mg/diffuser) + (E)-5-DECEN-1-YL ACETATE 18.7% (92.2mg/diffuser) + E- 8-DODECENYLACETATE 2.2% (10.7mg/diffuser) + Z-8-dodecen-1-ol 0.3% (1.3mg/diffuser) + Z-8-DODECENYLACETATE 33.4% (164.8mg/diffuser) diffuser) [VP] P/P
• (E)-5-DECEN-1-YL ACETATE 17.48% + (E)-5-DECEN-1-OL 3.63% + MIXTURE OF (E)-8-DODECEN-1-YL ACETATE + ( Z)-8-DODECEN-1-YL ACETATE + (Z)-8-DODECEN-1-OL 12.5% [AE] P/P
• (Z)-8-DODECEN-1-YL ACETATE 76 g/Kg + (E)-8-DODECEN-1-YL ACETATE 4.8 g/Kg + (Z)-8-DODECEN-1-OL 0, 8 g/Kg [AE] P/P
• (Z/E)-8 DODECENYL ACETATE 90.93% + Z-8-DODECEN-1-OL 0.67% (240 MG AS A MIXTURE OF BOTH S.A./DIFFUSER) [VP] P/P
• LAMBDA CYHALOTHRIN 1.5% [CS] P/V
• LAMBDA CYHALOTHRIN 10% [CS] P/V
• LAMBDA CYHALOTHRIN 2.5% [WG] P/P
• Mixture of (E)-8-Dodecen-1-yl acetate + (Z)-8-Dodecen-1-yl acetate + (Z)-8-Dodecen-1-ol [AE] P/V
• MIXTURE OF (E/Z)-8-DODECEN-1-YL ACETATE + (Z)-8-DODECEN-1-OL 10% [CS] P/P
• MIXTURE OF (Z,E)-8-DODECEN-1-YL ACETATE + (Z)-8-DODECEN-1-OL 0.358 g/diffuser [VP] P/P
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 trees for signs of infestation, especially during the growing season.
- Install pheromone traps to capture adults and reduce the population.
- Apply specific insecticide treatments during times of greatest moth activity.
- Maintain good orchard hygiene, eliminating fallen fruits and pruning remains to reduce pupation sites.
- Implement an integrated pest management program that includes the use of natural enemies such as parasitoids and predators.
- Carry out training and maintenance pruning to improve aeration and sun exposure, reducing humidity that favors the development of larvae.
- Use protective nets to prevent adults from laying eggs on trees.
- Apply biological treatments with Bacillus thuringiensis during the first stages of larval development.
- Rotate the insecticides used to avoid the development of resistance in the moth population.
- Promote biodiversity in the garden to attract natural predators of the oriental moth.
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