Nichino Blightwar Validamycin 3% L Rice Sheath Blight Fungicide

• Verified specialist use: the checked Nichino record identifies Blightwar for paddy sheath blight.
• Exact active-ingredient identity: the formulation is Validamycin 3% L.
• Defined resistance group: FRAC Group U18 distinguishes Validamycin products from fungicides in other groups.
• Official acre dose: Nichino lists 400-500 ml/acre rather than an invented universal pump or litre rate.
• Label-led guidance: unsupported claims about instant cure, residual duration, rainfastness, yield, crop greening, fish safety or universal compatibility are excluded.

Brand

Nichino Blightwar

Active Ingredient

Validamycin 3%

Formulation

L - liquid formulation

Product Role

Selective contact fungicide

FRAC Group

U18

FRAC Chemical Group

Glucopyranosyl antibiotic

Checked Crop

Paddy (rice)

Checked Disease

Sheath blight

1. Trehalase is targeted: Nichino describes competitive inhibition of the pathogen enzyme trehalase.
2. Reserve-energy use is disrupted: the manufacturer states that this interferes with reserve-energy supply and spore germination.
3. Disease development is restricted: Nichino positions Blightwar for curative use after sheath-blight incidence in paddy.

FRAC retains Validamycin in the U18 group and describes the detailed mode of action as unknown, so the proposed mechanism must not be presented as a guaranteed or complete account of every biological effect.

The checked Nichino page does not state a universal water volume, ml/L rate, PHI, re-entry interval, spray count or repeat interval. Do not infer any of those values. The current physical Blightwar label and leaflet are the final authority.

• Confirm paddy, sheath blight and the 400-500 ml/acre direction on the current physical Blightwar pack before use.
• Measure the treated area accurately. Do not calculate a pump or per-litre dose without the label's matching water-volume direction.
• Follow the physical label for timing, mixing order, agitation, equipment, nozzle, repeat-use limit, re-entry, PHI, first aid and every local restriction.
• This page makes no tank-mix, compatibility, layering or simultaneous-use recommendation. Apply any alternative separately under its own current Indian label.
• Wear every item of personal protective equipment stated on the current label. Avoid skin, eye and inhalation exposure, and wash thoroughly after handling.
• Keep the product in its original closed, labelled container away from food, feed, medicines, children and animals. Prevent spray liquid, washings and packaging from entering drains or water bodies.

Every Validamycin 3% L product belongs to FRAC Group U18. Changing from Blightwar to another Validamycin 3% L brand does not rotate the mode-of-action group. When another treatment is justified, select a separately applied fungicide from a genuinely different FRAC group only when its own current Indian label covers paddy sheath blight, and follow that product's individual rate, timing, use limits and PHI.

Always read and follow the current Nichino Blightwar label and leaflet. The physical pack is the final authority for approved use, dose, water volume, timing, repeat-use limits, PHI, re-entry, PPE, first aid, environmental precautions, storage and disposal. This guide does not replace the label, Indian regulation or qualified agronomic advice.