Product Introduction

Chlorothalonil is a broad-spectrum protective fungicide belonging to nitrile compounds. It effectively controls various fungal diseases and exhibits good efficacy on vegetables, fruit trees, food crops, and ornamental plants. Its mechanism of action involves inhibiting fungal cellular respiration and enzyme system activities, thereby preventing spore germination and mycelial growth.

Common Formulations and Contents

Application Instructions 

(Chlorothalonil 75% WP as an Example)

Technical Parameters

• Appearance:  Off-white or pale yellow powder

• pH value (1% solution): 6.0–8.0

• Fineness: ≥95% passes through 325-mesh sieve (for 75% WP)

• Suspensibility: ≥80% (for 50% SC, under 25℃ water temperature)

• Moisture content: ≤3.0% (for 75% WP)

• Solubility: Insoluble in water, easily dispersible in aqueous solutions

• Thermal stability: Decomposition rate of active ingredient ≤5% after storage at 54℃±2℃ for 14 days

• Storage stability: Stable for over 2 years when stored in a cool and dry place

Product Advantages

• Broad-spectrum efficacy: Controls multiple fungal diseases caused by Ascomycetes, Basidiomycetes, and Deuteromycetes.

• Long residual period (usually 7–10 days) with excellent rainfastness, reducing re-application frequency.

• Good compatibility: Can be mixed with most insecticides and fungicides (avoid mixing with strong alkaline agents).

• Low resistance risk: Multi-site action mechanism minimizes the development of pathogen resistance.

• Rapid protective effect: Forms a protective film on plant surfaces quickly after application to block pathogen invasion.

• Wide crop adaptability: Safe for use on over 50 types of crops including vegetables, fruits, and grains at recommended doses.

Safety Protection, Storage, and Transportation

• Avoid inhaling dust or mist; wear dust-proof masks, chemical-resistant gloves, and protective clothing during operation.

• Toxic to fish and aquatic organisms; strictly prohibit direct discharge of pesticide residues into water sources such as rivers and ponds.

• After application, clean application equipment thoroughly; avoid using leftover pesticide solution.

• Store in a cool, dry, and well-ventilated warehouse, away from food, feed, children, and pets.

• Prevent high temperature and sunlight exposure during storage; do not mix with strong oxidants or combustible materials.

• During transportation, avoid collision and leakage; handle with care to prevent package damage.

• Dispose of waste packaging in accordance with local environmental regulations; do not discard at will.