Hexaconazole 5% EC Fungicide Uses

Hexaconazole 5% EC is a systemic fungicide from the triazole chemical group, registered for use in India under the Insecticides Act, 1968, formulated as an emulsifiable concentrate (EC). It is registered for the control of scab in apple, blast and sheath blight in paddy, tikka leaf spot in groundnut, powdery mildew in mango and grapes, rust in soybean and blister blight in tea. This page lists its mode of action, key benefits and the recommended dosage 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

Hexaconazole belongs to the triazole group of demethylation inhibitor (DMI) fungicides — FRAC Group 3. It blocks the enzyme C14-demethylase needed to make ergosterol, an essential part of the fungal cell membrane. Without ergosterol, the fungal membrane becomes faulty and the fungus cannot grow or form new spores. Hexaconazole is systemic — it is absorbed by leaves and moves upward within the plant — giving both protective and curative action against established infections.

Features & Benefits

• Controls a range of diseases — scab, blast, sheath blight, leaf spot, powdery mildew, rust and blister blight — as per the CIB-registered uses.
• Systemic action with both protective and curative activity.
• Emulsifiable concentrate (EC) formulation that mixes readily with water.
• Registered across field crops, fruit trees and plantation crops.
• Triazole (DMI, FRAC Group 3) mode of action — rotate or combine with fungicides from other groups for resistance management.

Recommended Usage of Hexaconazole 5% EC 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.

Figures above are converted from the CIB&RC-registered per-hectare rates (1 ha ≈ 2.47 acres): Apple 0.0025% a.i., 0.05% formulation (50 ml/100 L), water as required, PHI 30 days; Rice (Paddy) 50 g a.i./ha, 1000 ml formulation/ha, 500 L water/ha, PHI 40 days; Groundnut 75 g a.i./ha, 1500 ml/ha, 500 L/ha, PHI 30 days; Mango 0.005% a.i. (5 g/100 L), 0.1% formulation (100 ml/100 L), water as required, PHI 30 days; Soybean 0.005% a.i. (5 g/100 L), 0.1% formulation (100 ml/100 L), water as required, PHI 30 days; Tea 10 g a.i./ha, 200 ml/ha, 70–90 L/ha with power sprayers or 175–200 L/ha with knapsack sprayer, PHI 7 days; Grapes 25–50 g a.i./ha, 500–1000 ml/ha, 500 L/ha, PHI 14 days. *For apple, mango and soybean, CIB&RC gives a fixed mixing concentration rather than a per-hectare rate — the total spray volume depends on crop/tree size and the spraying equipment used. Always confirm the current dose on your specific product's label before use.

How to Use

1. Identify the disease from the symptom guide above and confirm the dose from the table.
2. Measure the required quantity, mix it in a small quantity of water first, then add it to the spray tank and top up to the full volume while stirring.
3. Spray uniformly over the crop, covering both sides of the leaves, flower panicles, fruit and — in paddy — the lower leaf sheaths near the water line.
4. Spray at the first appearance of disease symptoms, or as advised by your local agricultural extension office; repeat if disease pressure continues.
5. Spray in calm weather in the early morning or late evening, and avoid spraying if rain is expected within a few hours.

Precautions & Safety

• Wear appropriate PPE — mask/respirator, gloves, goggles and full-sleeved clothing — while mixing and spraying, and avoid inhaling the spray mist.
• Follow the recommended dose strictly; do not mix with other pesticides unless specifically recommended.
• Respect the waiting period (PHI) given in the table — 7 days for tea, 14 days for grapes, 30 days for apple, groundnut, mango and soybean and 40 days for paddy — before harvesting the treated crop.
• Avoid repeated back-to-back sprays of triazole fungicides on the same crop; rotate with fungicides from a different FRAC group.
• 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.