Active ingredient and chemical mode of action
Carbendazim exerts systemic protective and curative fungal control.
Mode of action details:
- Active ingredient: Carbendazim 50% WP (Wettable Powder).
- Mode of action: Binds to fungal beta-tubulin subunits, disrupting microtubule assembly and arresting cell division during mitosis.
- Systemic uptake: Rapidly absorbed through roots and green foliage, translocating acropetally via the xylem stream to protect new growth flushes.
Target diseases and approved agricultural crops
Carbendazim is registered under CIBRC for controlling diverse fungal diseases.
Key target diseases and applications:
- Seed treatment: Controls loose smut in wheat, blast in paddy, and seedling blight/damping-off in pulses, oilseeds, and cotton.
- Foliar applications: Manages powdery mildew in peas, anthracnose in mango and grapes, leaf spot (tikka) in groundnut, and blast in rice.
- Soil drenching: Applied in vegetable nurseries to suppress Rhizoctonia and Fusarium root-rot complexes.
- Always follow registered product label dosage rates; avoid arbitrary higher concentrations to prevent fungal resistance.
Protective equipment, resistance management and safety
Applicators must wear chemical-resistant gloves, eye protection, and protective masks during mixing and spraying. To prevent pathogens from developing resistance, rotate carbendazim applications with fungicides having different biochemical modes of action (such as triazoles, strobilurins, or contact dithiocarbamates). Observe registered pre-harvest intervals (PHI).
Official source
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Central Insecticides Board & Registration Committee (CIBRC) ↗Related on KisanPe
Common questions
What is the active ingredient in Bavistin fungicide?
The active ingredient is Carbendazim 50% WP, a systemic benzimidazole fungicide.
What diseases are controlled by carbendazim seed treatment?
It protects against seed-borne and soil-borne fungal diseases including loose smut, seedling rot, blast, and early damping-off.
Why is alternating carbendazim with contact fungicides recommended?
Repeated use of single-site systemic fungicides can lead to fungal resistance; alternating with multi-site contact fungicides preserves chemical efficacy.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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