Acibenzolar-S-methyl Advanced Plant Defense Activator for Broad-Spectrum Disease Management

🌿 Acibenzolar-S-methyl – Advanced Plant Defense Activator for Broad-Spectrum Disease Management

Common Name: Acibenzolar-S-methyl
Chemical Name: Methyl 1,2,3-benzothiadiazole-7-carbothioate S-methyl ester
CAS Number: 135158-54-2
Molecular Formula: C9H7NO2S2
Formulation Types: Soluble Concentrate (SC), Water Dispersible Granules (WG)
Mode of Action: Plant defense activator (Systemic Acquired Resistance inducer)
FRAC Code: P01

🧪 Product Overview:

Acibenzolar-S-methyl (ASM) is a systemic plant defense activator that mimics natural salicylic acid signaling to stimulate the plant’s own immune system. Unlike traditional fungicides that target the pathogen directly, ASM induces systemic acquired resistance (SAR) in plants, enhancing their natural defenses against a wide range of bacterial and fungal diseases.

ASM is especially valuable for integrated disease management strategies and is known for its resistance-breaking properties when used in combination with other fungicides.

🌱 Key Features & Benefits:

• ✅ Induces systemic plant immunity (SAR)

• ✅ Effective against both bacterial and fungal pathogens

• ✅ Systemic action – protects new growth

• ✅ Low environmental impact – non-toxic to fungi, humans, and beneficial insects

• ✅ Ideal for resistance management programs

• ✅ Compatible with traditional fungicides and bactericides

• ✅ Excellent choice for IPM (Integrated Pest Management) strategies

🌾 Recommended Crops:

• Vegetables: Tomatoes, peppers, cucumbers, onions, lettuce

• Fruits: Citrus, grapes, apples, pears, stone fruits

• Field crops: Tobacco, rice, wheat

• Ornamentals: Roses, chrysanthemum, geraniums

🦠 Target Pathogens and Diseases:

• Bacterial spot (Xanthomonas spp.)

• Bacterial speck (Pseudomonas syringae)

• Fire blight (Erwinia amylovora)

• Downy mildew (Peronospora spp., Plasmopara viticola)

• Early and late blight (Alternaria solani, Phytophthora infestans)

• Powdery mildew (Erysiphe spp., Oidium spp.)

• Citrus canker, leaf spots, and scab diseases

⚙️ Mode of Action:

Acibenzolar-S-methyl does not kill pathogens directly. Instead, it activates SAR pathways in the plant, mimicking the natural hormone salicylic acid. This results in increased production of pathogenesis-related (PR) proteins, antioxidants, and secondary metabolites that fortify the plant against future infections.

• Systemic movement: Translocates throughout the plant, including new growth

• Pre-infection activity: Must be applied before or at the early stages of infection

• FRAC Group P01: No cross-resistance with fungicides in other groups

📋 Application Guidelines:

• May be applied alone or in tank mix with compatible protectant fungicides

• Do not exceed recommended dosage or frequency to avoid phytotoxicity

⚠️ Handling and Safety:

• Toxicity: Low toxicity to humans, mammals, birds, and aquatic life

• Re-entry Interval (REI): Typically 4 hours

• Pre-harvest Interval (PHI): Usually 0–7 days depending on the crop

• Protective Equipment: Gloves, eye protection, and long-sleeved clothing recommended during handling

• Storage: Store in original container in a cool, dry, and well-ventilated place

🌐 Compatibility and Resistance Management:

• Excellent compatibility with a wide range of fungicides and bactericides

• Can be tank-mixed with copper-based products, strobilurins, or triazoles

• Use in rotation or combination with direct-acting fungicides for enhanced disease control

• Supports resistance management programs by reducing over-reliance on single-site fungicides

✅ Conclusion:

Acibenzolar-S-methyl is a next-generation disease management tool that empowers crops to protect themselves. As a plant immunity booster, it plays a vital role in sustainable agriculture and integrated disease management. Its systemic activity, non-toxic profile, and compatibility with other control agents make it a highly effective and environmentally friendly option for commercial crop production.

🌿 Acibenzolar-S-methyl – Empowering Crops to Defend Themselves.

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