Product Overview

Boscalid (Chemical name: 2-Chloro-N-(4'-chlorobiphenyl-2-yl)nicotinamide; CAS No. 188425-85-6) is a broad-spectrum systemic fungicide belonging to the carboxamide (SDHI) group.It acts by inhibiting succinate dehydrogenase (SDH), a key enzyme in the fungal mitochondrial respiration chain. This disruption blocks energy production, causing the pathogen’s cells to lose viability and die.

Boscalid is recognized for its high efficacy and long-lasting protection against major fungal diseases such as powdery mildew, gray mold (Botrytis), Alternaria, and Sclerotinia. It is widely used on fruit trees, vegetables, oilseed crops, and ornamentals, helping farmers achieve consistent and healthy yields.

Technical Information

Key Product Features

1. Broad-Spectrum Efficacy

Controls a wide range of fungal classes including Ascomycetes, Basidiomycetes, and Deuteromycetes, ensuring effective management of major crop diseases.

2. Systemic and Translaminar Action

Boscalid is absorbed and distributed throughout plant tissues, protecting both treated and new growth areas for comprehensive disease suppression.

3. Extended Residual Activity

Provides long-lasting protection, reducing the need for frequent applications and lowering overall management costs.

4. Resistance Management Tool

When used in rotation or mixtures with fungicides of other FRAC groups, Boscalid helps prevent or delay the development of resistance.

5. Crop Compatibility and Flexibility

Suitable for a wide variety of crops including fruits, vegetables, oilseed rape, cereals, and ornamentals, offering flexible use across different agricultural systems.

Keywords: Boscalid WG, Boscalid SC, long residual fungicide, anti-resistance fungicide, broad-spectrum crop protection

Application Guidelines

Target Crops

• Grapes, apples, strawberries, tomatoes, cucumbers

• Lettuce, oilseed rape, and other vegetables or fruit crops

Target Diseases

• Powdery mildew

• Gray mold (Botrytis cinerea)

• Alternaria leaf spot

• Sclerotinia stem rot

Recommended Dosage

• Apply 200–500 g a.i./ha, depending on crop type, disease severity, and local conditions.

Application Timing

• Use preventively or at the onset of disease symptoms for optimal control.

• Ensure even spray coverage on leaf surfaces and both sides of foliage.

Tip: Combine with compatible fungicides for improved spectrum and resistance management.

Safety and Handling Precautions

Apply preventively or at early disease stages for best results.

Rotate with fungicides from different chemical classes to minimize resistance.

Avoid exceeding the recommended dosage to prevent phytotoxicity.

Observe the pre-harvest interval (PHI) specific to each crop.

Always wear protective gloves, masks, and clothing when handling or spraying.

Avoid drift to non-target areas and prevent contamination of water sources.