Azoxystrobin 18.2% + Cyproconazole 7.3% SC Fungicide Uses

Azoxystrobin 18.2% + Cyproconazole 7.3% SC is a combination fungicide that pairs azoxystrobin, a strobilurin (QoI) fungicide, with cyproconazole, a triazole (DMI) fungicide. It is registered for use in India under the Insecticides Act, 1968, and is formulated as a suspension concentrate (SC) for foliar spraying. It is registered for rust and powdery mildew in wheat, downy mildew, Turcicum leaf blight and rust in maize, sheath blight, leaf spots and dirty panicle in rice, leaf spots and grey mildew in cotton, leaf spots and powdery mildew in black gram, tikka leaf spot, leaf spots and rust in groundnut, leaf spot in soybean and Sigatoka leaf spots in banana. This page lists its mode of action, key benefits and the recommended usage as per the Central Insecticides Board & Registration Committee (CIB&RC) official list of approved fungicide uses (Government of India).

Which Problem Is This For? (Symptom Guide)

Not sure whether what you're seeing in the field matches this fungicide's use case? This guide helps match symptoms to this fungicide's approved crop-wise uses.

Mode of Action

This product combines two fungicides with different modes of action. Azoxystrobin is a strobilurin (QoI, quinone outside inhibitor) — FRAC Group 11. It binds to the Qo site of the cytochrome bc1 complex in fungal mitochondria, blocking electron transfer during respiration and stopping spore germination and early fungal growth. Cyproconazole is a triazole, a demethylation inhibitor (DMI) — FRAC Group 3. It inhibits the C14-demethylase enzyme in the ergosterol biosynthesis pathway, disrupting the formation of fungal cell membranes and stopping mycelial growth inside the plant tissue. Both actives move systemically within the plant: azoxystrobin is translaminar and xylem-mobile, while cyproconazole is taken up rapidly and moves upward (acropetally). Because the two actives act at two different target sites — one blocking respiration, the other blocking sterol synthesis — the combination gives both protective and curative activity and lowers the risk of resistance developing compared with relying on a single site of action.

Features & Benefits

• Two modes of action (FRAC Group 11 + FRAC Group 3) in one formulation, which supports resistance management.
• Registered on eight crops — wheat, maize, rice, cotton, black gram, groundnut, soybean and banana — for rusts, powdery and downy mildew, leaf spots, leaf blight, sheath blight and dirty panicle.
• Preventive action from azoxystrobin combined with curative action from cyproconazole on infections that have already started.
• Systemic movement inside the leaf and upward through the plant helps protect new growth after spraying.
• For wheat, CIB&RC also lists a drone application water volume.

Recommended Usage of Azoxystrobin 18.2% + Cyproconazole 7.3% SC Fungicide

The table below gives the recommended dose, water volume and waiting period per acre, converted from the CIB&RC-registered per-hectare rate — see the note below the table for conversion details. Always confirm against the current product label before use.

Water volumes above are converted from the CIB&RC-registered per-hectare rate (1 ha ≈ 2.47 acres): 500 L water/ha for all crops (~200 litres per acre); for wheat, CIB&RC also lists 20 L water/ha for drone application (~8 litres per acre). Waiting periods are as shown in the table. *CIB&RC does not list this product's dose as a per-hectare quantity: it states the dose as 0.26% w/v a.i. (wheat, maize) or 0.28% w/w a.i. (other crops) and "1%" for the formulation. Because these figures cannot be reliably converted into a per-acre quantity, no per-acre dose is given here — use the dose printed on the label of your specific product, and consult your local agricultural extension office if in doubt.

How to Use

1. Identify your crop and disease from the symptom guide above, and read the dose for your crop on the product label.
2. Shake the container well, measure the required quantity and pre-mix it in a small amount of water, then add it to the spray tank and top up to the full volume while stirring.
3. Spray uniformly over the whole crop canopy, covering both sides of the leaves; in rice, direct the spray towards the lower stem and leaf sheaths for sheath blight.
4. Begin spraying at the first appearance of disease — for example, the first rust pustules on wheat leaves — or preventively when weather is favourable for disease.
5. For drone spraying in wheat, use the water volume listed above and follow the drone-use guidance on the product label.
6. If a repeat spray is needed, follow the interval advised on the product label or by your local agricultural extension office, and rotate with fungicides from other FRAC groups.

Precautions & Safety

• Wear appropriate PPE — mask/respirator, gloves, goggles and full-sleeved clothing — while mixing and spraying, and avoid inhaling spray mist.
• Do not exceed the label dose; avoid back-to-back applications of strobilurin (Group 11) or triazole (Group 3) products on the same crop, and alternate with fungicides from other FRAC groups.
• Respect the waiting period (PHI) before harvest: wheat 50 days, maize 52 days, banana 10 days, black gram 15 days, cotton 68 days, rice 55 days, groundnut 15 days, soybean 27 days.
• Do not let spray wash or field water reach ponds, fish tanks, streams or drinking-water sources.
• Store in the original, tightly closed container in a cool, dry place away from direct sunlight, food and feed, and out of reach of children and livestock.
• Wash hands, face and any exposed skin thoroughly with soap and water after spraying, and change out of contaminated clothing before eating, drinking or smoking.

Brand names mentioned on this page are registered trademarks of their respective owners and are referenced here for identification purposes only; FarmMate is not affiliated with or endorsed by these brands. This page is for general information only — always consult your local agricultural extension office and confirm the current product label before use.