Krome Herbicide (Halosulfuron Methyl 75% WG): The Ultimate Solution for Purple Nutsedge
Stop "Motha" (Nutsedge) from stealing your crop yields with the power of advanced systemic action.
Manual weeding is expensive and often fails because it leaves the roots behind. Krome (by Krishi Rasayan) is a specialized, post-emergence herbicide designed specifically to tackle Cyperus rotundus (Purple Nutsedge), the world's most stubborn weed. Unlike older sprays that only burn the leaves, Krome penetrates the plant system to destroy the underground tubers, ensuring the weed does not grow back.
Why Choose This Product? Key Benefits
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Stops Growth Instantly: Weeds stop competing for nutrients within hours of application, even before they turn yellow.
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Safe for Crops: Scientifically formulated to be gentle on Sugarcane and Maize while being deadly to weeds.
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Kills the Root System: Systemic action travels down to the tubers (rhizomes), preventing future sprouting.
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Excellent Rainfastness: Rapidly absorbed into the plant system; rain 4 hours after spraying does not affect performance.
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Boosts Yields: By removing competition, farmers have seen yield increases of over 60% compared to weedy fields.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Krome |
| Technical Name | Halosulfuron Methyl 75% WG |
| IRAC MoA Code | Group 2 (ALS Inhibitor) |
| Chemical Group | Sulfonylurea |
| Formulation | Water Dispersible Granules (WG) |
| Toxicity Label | Blue/Green Triangle (Low Toxicity) |
How It Works: Mode of Action
Krome operates like a "Trojan Horse," attacking the weed from the inside out.
- Absorption: Upon spraying, the active ingredient penetrates the waxy leaf surface and enters the plant's system.
- Translocation: It moves downward through the stem (phloem) directly into the underground tubers and rhizomes.
- Enzyme Blockade: It inhibits the ALS enzyme, starving the weed of essential amino acids. The entire chain of tubers dies, preventing regrowth.
Result: Growth stops immediately. Yellowing appears in 3-5 days, and complete death occurs in 14-21 days.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Sugarcane | Cyperus rotundus (Purple Nutsedge / Motha), Broadleaf weeds |
| Maize (Corn) | Cyperus rotundus, Broadleaf weeds |
| Fallow Land | General sedge control |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results. Success depends on coverage.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (g / Acre) | Water (L / Acre) | Dose (g / Litre) | PHI (Days) |
|---|---|---|---|---|
| Sugarcane | 36 g | 150 - 200 L | ~ 0.18 - 0.24 g | Refer to Label |
| Maize | 27 - 36 g | 150 - 200 L | ~ 0.18 - 0.24 g | Refer to Label |
| General Weeding | 36 g | 150 L | ~ 0.24 g | - |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting. Always check the packet leaflet for the most current regulatory data.
How to Apply: Best Practices
- Timing: Apply when weeds are actively growing at the 3-4 leaf stage (approx. 20-45 days after planting). Do not spray if weeds are flowering or drought-stressed.
- Mixing: ALWAYS use a Non-Ionic Surfactant (Sticker/Spreader) at 1-2 ml per liter of water. Nutsedge leaves are waxy; without a sticker, the medicine will roll off.
- Coverage: Use Flat Fan or Flood Jet nozzles. Ensure high water volume (minimum 150 liters/acre) to drench the foliage completely.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Do not mix with Organophosphate insecticides.
Frequently Asked Questions
1. Does Krome kill the Nutsedge tubers (roots)?
Yes. Krome is a systemic herbicide. It travels from the leaves down to the underground tubers to kill the entire chain, preventing regrowth.
2. Can I use Krome in Maize (Corn)?
Yes, Krome is highly selective and safe for Maize when applied at the 2-5 leaf stage of the crop.
3. Is it necessary to add a surfactant/sticker?
Absolutely. Nutsedge leaves are very waxy and upright. A sticker ensures the spray spreads and penetrates the leaf surface for maximum effect.
4. Can I mix Krome with other insecticides?
Do NOT mix Krome with Organophosphate insecticides, as this can cause crop injury. Apply them at least 7 days apart.
5. Is Krome better than manual hand weeding?
Yes. Manual weeding is expensive and often breaks the root dormancy, causing more weeds to sprout. Krome offers cheaper, longer-lasting control.
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. Avoid spray drift to nearby sensitive crops like vegetables.
