Ácaros
Red Berry Mite
Acalitus Sp.
Pathogen:
Insect
Type:
Risk to the plant:
INTERMEDIATE
DESCRIPTION
WHO CAUSES IT?
Acalitus sp. It is a microscopic mite belonging to the Eriophyidae family, which affects several crops, including blackberries. This mite is extremely small in size, making it difficult to detect with the naked eye. The life cycle of Acalitus sp. It begins when adult females lay their eggs on the leaves and young shoots of the blackberry. The eggs hatch releasing larvae, which feed on plant tissue, causing significant damage. The larvae go through several molts before becoming adults, which continue feeding and reproducing. Adults can move to other parts of the plant or to nearby plants, allowing rapid proliferation of the mite, especially under favorable temperature and humidity conditions. The life of the mite is characterized by its high reproductive rate and its ability to cause extensive damage in a short time.
SYMPTOMS
Red berry mite disease caused by Acalitus sp. In blackberries, it manifests itself mainly in the leaves and shoots, generating deformations and discolorations that affect the quality and yield of the crop. At first, small reddish Taches can be observed on the leaves, which expand and become more intense over time. These Taches are accompanied by abnormal growth and general weakening of the plant, which can significantly reduce fruit production.
- Reddish Taches on the leaves.
- Deformations in the shoots and leaves.
- Abnormal growth of the plant.
- General weakening of the plant.
- Reduction in the quality and quantity of the fruits.
- Presence of fine cobwebs on the surface of the leaves.
TEMPERATURE AND HUMIDITY
20°C - 30°C
70% - 90%
HOW IS IT SPREAD?
Wind, insect vectors, contaminated tools, direct contact between plants, transport of infected plant material
HOW TO REMOVE IT?
Home remedies
There are no home treatments
Chemical treatments
• ORANGE OIL 60g/L [ME] P/S
• PARAFFIN OIL (CAS [8042-47-5]) 54.6% [EW] P/V
• PARAFFIN OIL (CAS [97862-82-3]) 40% [EW] P/V
• SULFUR 70% [SC] P/V
• SULFUR 72% [SC] P/V
• SULFUR 80% [WG] P/P
• MALTODEXTRIN 47.6% [SL] P/V
• MALTODEXTRIN 59.8% [SL] P/V
• POTASSIUM SALTS OF FATTY ACIDS C14-C20 48% [EW] P/V
Treatments allowed in organic farming
• ORANGE OIL 60g/L [ME] P/S
• PARAFFIN OIL (CAS [8042-47-5]) 54.6% [EW] P/V
• PARAFFIN OIL (CAS [97862-82-3]) 40% [EW] P/V
• SULFUR 70% [SC] P/V
• SULFUR 72% [SC] P/V
• SULFUR 80% [WG] P/P
• MALTODEXTRIN 47.6% [SL] P/V
• POTASSIUM SALTS OF FATTY ACIDS C14-C20 48% [EW] 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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- Constantly monitor the crop to detect the presence of the mite early.
- Use blackberry cultivars that are resistant or less susceptible to attack by Acalitus sp.
- Carry out regular pruning to eliminate infected shoots and leaves, thus reducing the mite inoculum.
- Maintain adequate ventilation in the crop, avoiding high humidity conditions that favor the proliferation of the mite.
- Apply specific acaricides following the technical recommendations and established treatment thresholds.
- Introduce natural enemies of the mite, such as predatory mites, to keep Acalitus sp populations under control.
- Avoid excessive use of nitrogen fertilizers, which can promote the growth of tender shoots that are attractive to the mite.
- Carry out an appropriate crop rotation to reduce mite pressure in the same area year after year.
- Disinfect work tools and equipment to prevent the spread of the mite between plants and plots.
Recommendations
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