Gallant Herbicide by Corteva (Haloxyfop-R-methyl 10.5% EC)
The Ultimate Specialist for Grassy Weeds in Soybean, Cotton, and Groundnut
Struggling with tough grassy weeds like Viper Grass (Dinebra) or Barnyard Grass? Gallant Herbicide is a systemic, post-emergence solution designed by Corteva Agriscience. Powered by Haloxyfop-R-methyl, it selectively targets and destroys grasses from the roots without harming your broadleaf crops.
Best For: Farmers seeking rapid, rainfast control of weeds in Soybean, Groundnut, Cotton, and Onion crops.
Why Choose This Product? Key Benefits
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Stops Growth in 48 Hours: Weeds stop competing for food and water almost immediately after spraying, even if they stay green for a few days.
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100% Crop Safe: Advanced selectivity ensures zero damage to broadleaf crops like Soybean, Groundnut, and Cotton.
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Root-Level Kill: Systemic action moves the chemical down to the roots and rhizomes, preventing perennial weeds from growing back.
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Rainfast in 1 Hour: Excellent for the monsoon season (Kharif). Once dried (approx. 1 hour), rain will not wash it away.
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Tough Weed Specialist: Specifically engineered to control difficult weeds like Dinebra arabica (Viper grass) and Echinochloa.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Gallant |
| Technical Name | Haloxyfop-R-methyl 10.5% EC |
| IRAC MoA Code | Group 1 (Formerly Group A) |
| Chemical Group | Aryloxyphenoxypropionate ("Fops") |
| Formulation | Emulsifiable Concentrate (EC) |
| Toxicity Label | Blue Triangle (Moderately Toxic) |
How It Works: Mode of Action
Gallant works by inhibiting the ACCase enzyme, which is essential for lipid (fat) production in grasses. Without lipids, the weed cannot build new cells.
- Rapid Absorption: The lipophilic formula penetrates the waxy leaf cuticle of the grass within minutes.
- Translocation: The active ingredient moves through the phloem to the roots and growing points (meristems).
- Elimination: It halts the production of cell membranes, causing the growing point to turn brown and die ("Dead Heart"), eventually killing the entire plant.
Note: Because broadleaf crops have a different enzyme structure, they are completely immune to this process.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Soybean | Barnyard grass, Viper grass (Dinebra), Volunteer Corn |
| Groundnut | Jungle rice, Wiregrass, Large Crabgrass |
| Cotton & Onion | Bermuda grass, Panicum, Digitaria spp. |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Soybean | 400 - 500 ml | 100 - 120 L | 2.0 - 2.5 ml | 60 - 75 |
| Groundnut | 400 - 500 ml | 100 - 120 L | 2.0 - 2.5 ml | 86 - 90 |
| Cotton / Onion | 400 - 500 ml | 100 - 120 L | 2.0 - 2.5 ml | 35 - 86 |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: Apply when weeds are young and actively growing (2 to 4 leaf stage). Do not apply if weeds are drought-stressed. [Image of weed at 2-4 leaf stage]
- Mixing: Do NOT mix Gallant with broadleaf herbicides (like 2,4-D or Zinc) in the same tank, as this reduces grass control. Maintain a 14-day gap between sprays.
- Coverage: Use a flat fan or flood jet nozzle. Ensure high water volume so spray droplets slide down into the whorl of the grass.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use.
Frequently Asked Questions
1. Does Gallant Herbicide control Viper Grass (Dinebra)?
Yes, Gallant is highly effective against Dinebra arabica (Viper grass) and other tough grasses that often escape other herbicides.
2. Is it rainfast? What happens if it rains after spraying?
Gallant is rainfast within 1 hour. If it rains one hour after application, you do not need to respray.
3. Can I use Gallant on Maize (Corn) or Rice?
No. Maize and Rice are grasses. Gallant will kill them. It is strictly for broadleaf crops like Soybean, Groundnut, Cotton, and Pulses.
4. How long does it take to see results?
Weed growth stops in 48 hours. Yellowing begins in 5–10 days, and complete death occurs within 14–21 days.
5. Can I mix it with 2,4-D for broadleaf control?
No. Mixing Gallant with auxins like 2,4-D causes "antagonism," meaning the grass control will be poor. Spray them separately with a 14-day gap.
Safety & Disclaimer
Always read and follow the instructions on the official product label. The information provided here is for guidance only. Use personal protective equipment (PPE) during application.
