Tebuconazole 50% + Trifloxystrobin 25% WG Fungicide Uses

Tebuconazole 50% + Trifloxystrobin 25% WG is a combination, broad-spectrum systemic fungicide registered for use in India under the Insecticides Act, 1968 and sold under various trade names including Trophy and Premia Gold. It pairs a triazole (tebuconazole) with a strobilurin (trifloxystrobin), and carries one of the widest crop labels among the combination fungicides on this site — covering cereals (rice, wheat, maize), fruit crops (grapes, mango), plantation crops (coffee), and a wide range of vegetables (tomato, chilli, onion, brinjal, okra, green pea) and spices (cumin), used as a foliar spray against blast, rust, powdery mildew, anthracnose and various leaf spots and blights. This combination remains legally registered and sold in India; always confirm the current pack label before use. This page lists its mode of action, key benefits and the recommended crop-wise dosage as per manufacturer labels.

Mode of Action

This product combines two fungicides with different, complementary modes of action. Tebuconazole is a systemic triazole (DMI) fungicide that inhibits sterol biosynthesis in fungal cell membranes by blocking the C14-demethylase enzyme, giving both preventive and curative activity as it is absorbed and moves within the plant. Trifloxystrobin is a strobilurin (QoI) fungicide that blocks fungal respiration by interrupting mitochondrial electron transport, cutting off the pathogen's energy supply; it has strong translaminar movement, protecting both the upper and lower leaf surface from a spray applied to just one side. Because the two actives act at separate, unrelated points in the fungal life cycle, the combination gives broad-spectrum, long-lasting preventive and curative control while reducing the resistance risk compared to repeated use of either active alone.

Features & Benefits

• One of the widest crop labels among combination fungicides — cereals, fruit, plantation and vegetable/spice crops all in a single product.
• Two complementary modes of action (triazole + strobilurin) broaden the disease spectrum and reduce resistance risk compared to either active used alone.
• Strong translaminar movement of the strobilurin component protects both leaf surfaces from a single-sided spray.
• Dual preventive and curative activity suitable for both scheduled preventive spraying and use once early disease symptoms appear.

Recommended Usage of Tebuconazole 50% + Trifloxystrobin 25% WG Fungicide

The table below gives the commonly recommended dose and water volume per acre for each crop and target disease, as listed on manufacturer labels for this active ingredient combination. Always spray in the recommended water volume for uniform coverage, and confirm against the current product label before use.

Doses above are the commonly listed formulation-label rates for Tebuconazole 50% + Trifloxystrobin 25% WG, rounded to practical spray-tank quantities. The mango dose is given per 100 litres of water (dilute spray to tree size) rather than per acre, since orchard tree spacing and canopy size vary widely. None of the label sources checked stated a numeric waiting period (PHI) for these crops, so this has been left out rather than estimated — always confirm the current pack label/CIB registration and consult your local agricultural extension office for the latest guidance before harvest.

How to Use

1. Identify your crop and target disease from the table above, and confirm the correct dose per acre (or per 100 litres for orchard use) for that crop.
2. Make a thin paste of the required quantity in a small amount of water, then dilute this gradually into the full spray tank volume while stirring continuously so the water-dispersible granule disperses evenly.
3. Spray using a knapsack or power sprayer fitted with a flat-fan or hollow-cone nozzle for uniform leaf coverage, preferably during the early morning or late evening.
4. For orchard crops (mango), spray to run-off on all foliage using the per-100-litre dilution given above, adjusting total spray volume for tree size.
5. Repeat sprays at 10–15 day intervals if disease pressure continues, and always confirm the waiting period on the current label before harvest.

Precautions & Safety

• Wear appropriate PPE — mask/respirator, gloves, goggles and full-sleeved clothing — while mixing and spraying.
• Do a small jar-compatibility test before tank-mixing with other agrochemicals, and avoid mixing with strongly alkaline materials.
• Store in the original, tightly closed container in a cool, dry place away from direct sunlight, food, feed and out of reach of children and livestock.
• Confirm and respect the waiting period (PHI) on the current pack label for your specific crop before harvesting, and follow your local agricultural extension advice for the latest guidance.
• Even with two modes of action, avoid repeated, back-to-back use of this exact combination on the same crop/disease across a season; rotate with fungicides from genuinely different groups as part of a resistance-management program.
• Wash hands, face and any exposed skin thoroughly with soap and water after handling or spraying, and change out of contaminated clothing before eating, drinking or smoking.