Classification:
Fungicide
Formulation:
Chlorothalonil 75% WP (Wettable Powder)
CAS NO:
1897-45-6
USAGE:
Non-systemic foliar fungicide for controlling fungal diseases in vegetables
(tomatoes, potatoes, peppers), fruits (grapes, strawberries), cereals, turf, and
ornamentals. Effective against late blight, early blight, leaf spot, downy
mildew, and anthracnose.
Pack size:
500g, 1kg, 5kg, 25kg/bag, or as required
Crop | Target Diseases | Dosage (75% WP) | Application Timing | Remarks |
---|---|---|---|---|
Tomatoes | Early blight, Late blight | 2.0-3.0 kg/ha | First sign of disease, repeat at 7-10 day intervals | 1) REI: 48 hrs 2) Max 6 applications/season |
Grapes | Downy mildew, Black rot | 1.5-2.5 kg/ha | Pre-bloom through fruit set | PHI: 42 days |
Potatoes | Late blight, Leaf spot | 2.5-3.5 kg/ha | When conditions favor disease | Use preventatively |
Peppers | Anthracnose, Cercospora leaf spot | 1.8-2.5 kg/ha | Early disease development | Do not exceed 16 kg/ha/year |
Turf | Dollar spot, Brown patch | 5-7 g/100m² | At disease onset | Water in after application |
Mode of Action:
-Multi-site contact fungicide
-Inhibits fungal spore germination
-Disrupts cellular metabolism by reacting with thiol groups
-No known resistance development
Benefits:
-Broad-spectrum disease control
-Excellent preventive protection
-Rainfast within 2 hours
-Long residual activity (7-14 days)
-Compatible with most pesticides
Precautions:
-PPE: Coveralls, chemical-resistant gloves, respirator
-Do not apply during temperature inversions
-Maintain 15m buffer zone from water bodies
-Storage: Keep in original container below 35°C
-Do not use on sensitive crops (e.g., cucurbits)
Environmental Hazards:
-Highly toxic to fish and aquatic invertebrates
-Avoid spray drift to water sources
-Moderately toxic to bees (do not apply during bloom)
-Soil half-life: 10-30 days (depending on conditions)