Chlorothalonil CAS 1897-45-6


Chlorothalonil is a broad-spectrum, non-systemic fungicide and bactericide widely used in agriculture and horticulture to control a variety of fungal diseases in crops, trees, and ornamental plants. It is known for its protective action, as it forms a protective barrier on the surface of plants, preventing fungal spores from germinating and infecting the plant tissues.


Chlorothalonil is effective against a wide range of fungal pathogens, including those causing diseases like leaf spots, blights, rusts, and mildews. It is used in many different crops, including fruits, vegetables, cereals, and ornamental plants.


Key characteristics and uses of chlorothalonil include:


Contact fungicide: Chlorothalonil does not move within the plant; it works on the plant's surface where it is applied. This makes it effective against diseases that affect the surface of leaves, stems, and fruit.


Multi-site mode of action: Chlorothalonil affects multiple sites in fungal cells, which reduces the likelihood of resistance development in fungal populations over time.


Safety precautions: It is important to handle chlorothalonil with care and follow safety guidelines when applying it, as it can be harmful to humans and the environment if not used properly.


Residue management: Chlorothalonil is subject to residue management regulations in many countries to ensure that residues on food crops do not exceed established safety levels.


Like all pesticides, the use of chlorothalonil should be carried out in accordance with label instructions and in compliance with local regulations to minimize potential risks and environmental impact. Regulatory and usage guidelines may vary by region and crop, so it is essential to follow recommendations specific to the intended application.

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