Active Ingredient and Protective Mode of Action
Propineb is a polymeric zinc propylenebis(dithiocarbamate) formulated as a seventy percent wettable powder.
It acts as a multi-site contact protectant that inactivates sulfhydryl-containing enzymes across multiple respiratory and metabolic pathways in fungal spores.
Because of this broad multi-site surface action, pathogenic fungi do not develop resistance against Propineb.
- Formulation: 70 percent Wettable Powder (WP)
- Zinc enrichment: Contains approximately fifteen percent complexed elemental zinc in bioavailable form
- Rainfast barrier: Excellent surface adherence ensures persistent rain resistance on foliage and developing fruits
Target Crop Diseases and Zinc Greening Benefits
Propineb is registered across diverse field crops, pulses, apples, grapes, and solanaceous vegetables.
The release of bioavailable zinc during weathering stimulates chlorophyll synthesis, giving treated crops a noticeable nutritional greening effect.
It is deployed preventively ahead of rainy weather or humid conditions favorable for fungal spore dispersion.
- Potato and tomato: Controls early blight and late blight while enhancing foliage vigor
- Apple: Primary protectant against apple scab (Venturia inaequalis)
- Paddy: Manages brown spot and false smut infections during reproductive phases
Slurry Preparation, Mixing, and Safety
Always make a smooth pre-slurry in clean water before pouring into the primary spray tank to ensure complete powder suspension.
Maintain continuous agitation during spraying and observe recommended pre-harvest intervals before picking commercial produce.
Wear standard personal protective equipment during handling.
- Pre-slurry mixing: Dissolve powder in a bucket of clean water before diluting into the sprayer tank
- Canopy wetting: Spray both upper and lower canopy surfaces until leaves are evenly coated
- Personal protection: Wear protective rubber gloves, dust mask, and safety goggles during handling
Official source
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Central Insecticides Board & Registration Committee ↗Related on KisanPe
Common questions
What is Propineb fungicide used for in agriculture?
Propineb is a broad-spectrum contact protective fungicide used to prevent apple scab, late blight, downy mildew, and leaf spots.
How does Propineb provide nutritional benefits to crops?
Propineb contains approximately 15% complexed zinc, which is absorbed through foliage to stimulate chlorophyll production and greening.
Does Propineb have systemic curative action?
No, Propineb is a surface contact protectant that prevents spore germination; it must be applied preventively before disease establishes.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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