Vine treatments: the complete calendar for every growth stage

Managing vineyard treatments is one of the most important aspects of ensuring plant health and grape quality. Planning a vineyard treatment calendar allows growers to prevent major fungal and pest diseases, intervene promptly, and avoid product waste. The vine goes through several phenological stages, and each one requires specific care.

In this article, we’ll go step by step through the most appropriate treatments based on plant development, with a focus on complementary aspects such as fertilization and product selection.

Phenological stages and treatments

Budburst (March-April)

Budburst marks the beginning of the vegetative cycle. At this stage, treatments are mainly preventive. It’s essential to protect the vine from primary infections of downy mildew and powdery mildew, which easily affect young leaves.

• Recommended treatments: low-dosage copper-based products for downy mildew, sulfur for powdery mildew.
• Months: March-April.

Expanded leaf stage (April-May)

As vegetative growth accelerates, the risk of fungal infections increases. During this phase, the vineyard treatment calendar includes systemic products to strengthen protection.

• Recommended treatments: systemic and contact fungicides for downy mildew and powdery mildew.
• Months: April-May.

Pre-flowering and flowering (May-June)

Flowering is an extremely delicate period: the plant is especially vulnerable to downy mildew, powdery mildew, and botrytis. An infection now can directly compromise production.

• Recommended treatments: mixtures based on copper, sulfur, and preventive anti-botrytis products.
• Months: May-June.

Fruit Set (June)

After flowering, young berries begin to form. Protection must remain strong to prevent irreversible damage.

• Recommended treatments: contact products for downy mildew and powdery mildew; specific insecticides if moths or other pests are detected.
• Month: June.

Berry growth (June-July)

During this stage, vegetation is dense and treatments must ensure uniform coverage.

• Recommended treatments: systemic and contact fungicides for downy mildew and powdery mildew; special attention to botrytis with targeted products.
• Months: June-July.

Veraison (July-August)

As berries change color, treatments must be carefully managed to respect pre-harvest intervals.

• Recommended treatments: selective anti-botrytis products; targeted insecticide treatments if infestations appear.
• Months: July-August.

Ripening (August-September)

As harvest approaches, treatments should be reduced and well-timed to avoid interfering with grape picking.

• Recommended treatments: only when disease pressure is high, ensuring full compliance with pre-harvest intervals.
• Months: August-September.

Post-harvest (October)

After harvest, vines need care to prepare for winter dormancy.

• Recommended treatments: copper-based products to disinfect the plant and limit autumn infections.
• Month: October.

Dormancy (November-February)

During winter, treatments aim to reduce pathogen inoculum for the following season.

• Recommended treatments: lime sulfur or mineral oil applications to lower overwintering pest and disease pressure.
• Months: November-February.

Other aspects to consider

Integrated pest management

A sound vineyard treatment calendar must include integrated pest management, combining chemical protection with agronomic practices. Green pruning, soil management, and continuous monitoring of weather conditions help reduce the need for intensive chemical interventions.

Fertilization

Fertilization is closely linked to vine health. A nutritionally balanced vineyard is less prone to disease. Nitrogen, phosphorus, and potassium should be supplied in the right amounts, avoiding excesses.

Selection of products for treatments

Choosing the right plant protection products is crucial. Use solutions specifically registered for vines, with attention to sustainability and compliance with regulations. Alternating active ingredients is essential to prevent resistance.

Quality equipment

Alongside product choice, equipment quality plays a decisive role in treatment effectiveness. Caffini mist-blower sprayers and pneumatic sprayers are designed to ensure precise, uniform, and environmentally friendly distribution, minimizing waste and optimizing work time. Choosing reliable machinery means relying on constant support and cutting-edge technology to handle every stage of the vineyard treatment calendar effectively.

Conclusion

A well-structured vineyard treatment calendar helps guide the vine through all its phenological stages, preventing major diseases and ensuring healthy, high-quality grapes. Each stage requires a targeted approach, complemented by sound agronomic practices, balanced fertilization, and careful product selection.

Planning means saving time and resources while ensuring the vineyard expresses its full potential.

If you’d like to learn more about Caffini solutions for vine protection or request personalized advice, please contact our team directly.