Chemical Class and Multisite Contact Mode of Action
Blitox 50 belongs to the inorganic copper group (FRAC Group M01 - Multisite contact activity). Upon application, copper ions (Cu2+) are released gradually into moisture droplets on plant foliage.
These divalent copper ions non-specifically denature sulfhydryl and other active chemical groups in fungal and bacterial proteins. This simultaneous disruption of multiple enzyme pathways prevents spore germination and cellular division, preventing resistance development.
- FRAC Group M01 Activity: Multisite mode of action makes pathogen resistance development virtually impossible.
- Dual Fungicidal & Bactericidal Action: Effective against both fungal blights and destructive phytopathogenic bacteria.
- Formulation Type: Wettable Powder (50% WP) providing a tenacious, weather-resistant blue protective barrier over plant foliage.
Target Pathogens and Approved Crop Systems
Blitox is registered under CIBRC standards across a diverse range of crops including potato, tomato, grapes, citrus, cardamom, and coffee. It protects potato and tomato crops against early blight (Alternaria solani) and late blight (Phytophthora infestans).
In fruit orchards, it manages citrus canker (Xanthomonas), anthracnose in mango, downy mildew in grapes, and leaf rot and collar rot in plantation crops like cardamom and black pepper.
- Late Blight Defense: Forms a protective surface shield preventing Phytophthora zoospore penetration.
- Citrus Canker Management: Suppresses bacterial leaf lesions and fruit rind blemishes in commercial citrus orchards.
- Plantation Crop Care: Controls fungal rots in cardamom, coffee, and black pepper under high monsoon rainfall.
Application Guidelines and Spray Compatibility
Apply Blitox preventively prior to rainfall or at the earliest visual onset of disease symptoms. Maintain continuous tank agitation during spraying to prevent heavy wettable copper particles from settling at the bottom of the spray tank.
Do not tank-mix Blitox with organophosphate insecticides, acidic chemicals, or systemic phosphonates (such as Fosetyl-Al), as chemical interactions can lead to phytotoxicity and leaf scorching.
- Preventive Foliar Barrier: Apply before rains to coat leaf surfaces thoroughly before spore landing.
- Agitation: Keep the spray tank well stirred throughout application.
- Pre-Harvest Interval (PHI): Observe statutory harvest waiting intervals indicated on the registered product packaging.
Official source
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Central Insecticides Board & Registration Committee (CIBRC) ↗Related on KisanPe
Common questions
What is the technical ingredient in Blitox 50?
Blitox 50 contains Copper Oxychloride 50% WP (Wettable Powder), an inorganic copper fungicide and bactericide manufactured by Rallis India.
Why is Blitox effective against both fungi and bacteria?
Copper ions (Cu2+) denature essential structural and metabolic enzymes non-specifically across both fungal spores and bacterial cell walls.
Can Blitox be mixed with acidic or phosphonate chemicals?
No, it should not be mixed with acidic products or phosphonate systemic fungicides like Fosetyl-Al, as incompatibility can cause severe crop phytotoxicity.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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