Active ingredient

Chlorothalonil

Chemical name

2,4,5,6-tetrachloro-1,3-benzenedicarbonitrile

Classification

Fungicide / Agrochemical

Biochemistry

Conjugation with, and depletion of, thiols (particularly glutathione) from germinating fungal cells, leading to disruption of glycolysis and energy production, fungistasis and fungicidal action.

 Mode of action

Non-systemic foliar fungicide with protective action

Usage

Control of many fungal diseases in a wide range of crops, including pome fruit, stone fruit, citrus fruit, bush and cane fruit, cranberries, strawberries, pawpaws, bananas, mangoes, coconut palms, oil palms, rubber, pepper, vines, hops, vegetables, cucurbits, tobacco, coffee, tea, rice, soya beans, peanuts, potatoes, sugar beet, cotton, maize, ornamentals, mushrooms, and turf. Application rates for food crops are 1-2.5 kg/ha.

Mammalian Toxicology

Oral: Acute oral LD50 for rats >5000 mg/kg. 

Skin and eye: Acute percutaneous LD50 for albino rabbits >5000 mg/kg. Severe eye irritant; mild skin irritant (rabbits). Evidence in humans of contact dermatitis with repeated exposure. 

Inhalation: LC50 (1 h) for rats 0.52 mg/l air; (4 h) for rats 0.10 mg/l air.

Certificate of quality

Chlorothalonil 75% WP

Item

Specification