Krishikranti CLOSTRA Pyraclostrobin 10% CS Fungicide

Krishikranti CLOSTRA is a Pyraclostrobin 10% CS fungicide for rice blast control. It protects paddy against leaf blast and neck blast caused by Pyricularia oryzae. The Capsule Suspension (CS) formulation releases the active ingredient slowly for longer-lasting leaf protection.

Key Benefits: Pyraclostrobin 10% CS Fungicide

• Dual-action protection: Controls rice blast while supporting plant health.
• Higher nitrate reductase activity: Keeps the flag leaf healthy, supporting more uniform grain fill.
• Sustained release (CS technology): The capsule suspension binds to the leaf's waxy layer, holding protection longer than a standard SC spray.
• Rainfast formulation: Once absorbed onto the leaf surface, protection is not easily washed off by light rain.
• Low use rate: Effective at just 400 ml/acre less product handled, lower application cost per acre.
• Compatible as tank-mix partner: Mixes with most other sprays when added last (no stickers/spreaders).

Uses / Target Disease & Crop

Registered use per CIB&RC label: rice blast. Confirm the label before use on any other crop.

Dose / Application Rate

Spray Method & Timing

• Apply CLOSTRA as a foliar spray only.
• Leaf blast: spray as soon as the first lesions appear.
• Neck blast: spray at booting stage, before the panicle emerges.
• High disease pressure: give a second spray at 50–75% head-out for added protection.
• Always add CLOSTRA as the last tank-mix partner.
• Do not use stickers or spreaders in the same tank.

Mode of Action

Pyraclostrobin belongs to the QoI (Strobilurin) group. It blocks the mitochondrial electron transport chain in the fungal cell, cutting off its energy supply. The CS formulation binds to the leaf's waxy layer for sustained protection.

Safety & Precautions

• Re-entry interval (REI): Wait 12–24 hours after spraying before re-entering the field.
• Pre-harvest interval (PHI): Follow the PHI stated on the product label before harvest do not spray closer to harvest than instructed.
• PPE: Wear gloves, mask, and protective clothing while handling and spraying.
• Storage: Store in original packaging, in a cool, dry place, away from direct sunlight and out of reach of children.

Frequently Asked Questions

What is the dose of Pyraclostrobin 10% CS per acre?

CLOSTRA is applied at 400 ml per acre, or 2 ml per litre of water.

Which disease does Pyraclostrobin 10% CS control?

It controls leaf blast and neck blast in rice, caused by Pyricularia oryzae.

On which crop can I use Pyraclostrobin 10% CS?

It is registered for use on rice (paddy) for blast disease management.

When should I spray CLOSTRA in paddy?

Spray at first symptoms for leaf blast, and at the booting/swollen-stem stage for neck blast.

Can I mix CLOSTRA with other sprays?

Apply CLOSTRA as the last tank-mix partner. Do not add stickers or spreaders in the same tank.

Does CLOSTRA offer any benefit besides disease control?

Yes. Pyraclostrobin increases nitrate reductase activity in the flag leaf, which supports more uniform, better-filled grains alongside blast control.

Is Pyraclostrobin 10% CS the same as Header?

Header (PI Industries) is another branded formulation of Pyraclostrobin 10% CS. CLOSTRA is Krishikranti's Pyraclostrobin 10% CS fungicide for the same use: rice blast control.

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