Haloxyfop-R-methyl 16.5% + Clodinafop-propargyl 8% EC Herbicide Uses

Haloxyfop-R-methyl 16.5% + Clodinafop-propargyl 8% EC is a ready-mix, selective, post-emergence herbicide combining two actives of the aryloxyphenoxypropionate ("fop") group — haloxyfop-R-methyl and clodinafop-propargyl — registered for use in India under the Insecticides Act, 1968, formulated as an emulsifiable concentrate (EC). It is registered for weed control in soybean, black gram (urad), green gram (moong) and groundnut, with grassy weeds such as sanwak, makra, jangli mandua and crabgrass as well as several broadleaf weeds listed in the CIB&RC registration. 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 herbicide uses (Government of India).

Which Weeds Does This Control? (Field Identification Guide)

Not sure whether the weeds in your field match this herbicide's use case? This guide helps match weed identification to this herbicide's approved crop-wise uses.

Mode of Action

Haloxyfop-R-methyl and clodinafop-propargyl are both aryloxyphenoxypropionate ("fop") herbicides that inhibit acetyl-CoA carboxylase (ACCase) — HRAC Group 1 (formerly Group A). They are absorbed quickly through the leaves and move to the growing points and nodes of grassy weeds, where blocking ACCase stops the making of fatty acids needed for new cell membranes. Growth of the grass stops within a few days; the youngest leaves turn yellow, the growing point rots and can be pulled out easily, and the weeds die over about 2–3 weeks. Broadleaf crops such as soybean, black gram, green gram and groundnut are naturally tolerant to this mode of action.

Both actives share the same mode of action (Group 1), so the combination does not add a second mode of action; it brings two grass-active partners together in one spray. ACCase-inhibitor herbicides are generally known for activity on grassy weeds, while the CIB&RC registration for this product also lists several broadleaf weeds — check the current product label for the weed spectrum claimed before relying on it for broadleaf weed control.

Features & Benefits

• Post-emergence control of grassy weeds such as sanwak (Echinochloa), makra (crowfoot grass), jangli mandua (goosegrass) and crabgrass in soybean, black gram, green gram and groundnut.
• The CIB&RC registration also lists broadleaf weeds including kuppi, safed murga, hulhul, kankawa, tandla, dudhi, gajar ghaas, bhui amla, chirpoti, chaulai and bishkhapra.
• Selective in the registered broadleaf crops, which tolerate the ACCase-inhibitor mode of action.
• Fast leaf uptake through an emulsifiable concentrate (EC) formulation that mixes readily in water.
• Both components are Group 1 (ACCase inhibitors) — rotate with herbicides of other groups as part of an integrated weed-management program.

Recommended Usage of Haloxyfop-R-methyl 16.5% + Clodinafop-propargyl 8% EC Herbicide

The table below gives the recommended dose, water volume and waiting period per acre for each crop, converted from the CIB&RC-registered per-hectare rate — see the note below the table for conversion details. Always spray in the recommended water volume for uniform coverage, and 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): Soybean — 165 + 80 g a.i./ha (haloxyfop-R-methyl + clodinafop-propargyl), 1000 ml formulation/ha, 500 L water/ha, waiting period 61 days; Black gram, Green gram and Groundnut — 165 + 80 g a.i./ha, 1000 ml formulation/ha, 500 L water/ha, waiting period 54 days. Always confirm the current product label before use.

How to Use

1. Identify the weeds in your field using the guide above and confirm that the crop and weeds match the approved uses.
2. Spray post-emergence, when the grassy weeds are young (generally at the 2–5 leaf stage) and actively growing; follow the product label for the exact timing in your crop.
3. Add the measured dose to a half-filled spray tank and top up with clean water while stirring to form a uniform emulsion.
4. Use a knapsack sprayer with a flat-fan nozzle and cover the weed foliage uniformly; do not overlap spray swaths.
5. Spray when the soil has adequate moisture and the weeds are not under drought stress, in calm weather with no rain expected for a few hours.
6. Clean the sprayer thoroughly after use, especially before using it on cereal crops such as maize, rice or wheat.

Precautions & Safety

• Respect the waiting period (PHI) between spraying and harvest: soybean 61 days; black gram, green gram and groundnut 54 days.
• Grass-family crops such as maize, rice, wheat, sorghum and millets are highly sensitive to ACCase-inhibitor herbicides — avoid any spray drift onto them, and use only in the crops registered by CIB&RC.
• Both components belong to herbicide Group 1; do not rely on this or other Group 1 herbicides alone season after season — rotate or combine with other groups and weed-control methods to slow resistance development.
• Wear appropriate PPE — mask, gloves, goggles and full-sleeved clothing — while mixing and spraying, and avoid inhaling the spray mist.
• Do not let spray, spray-tank washings or leftover solution reach ponds, canals, 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.