Best Agrolife Headshot Herbicide - Halosulfuron Methyl 75% WG for Sugarcane, Maize & Bottle Gourd

Best Agrolife Headshot is a selective, post-emergence herbicide formulated with Halosulfuron Methyl 75% WG (Water Dispersible Granules). It belongs to the sulfonylurea chemical group and is specifically designed to control stubborn sedge weeds like Cyperus rotundus (Purple Nut Sedge / Motha) and Cyperus iria (Rice Flat Sedge) in key Indian crops. Headshot is recommended for use in Sugarcane, Maize, and Bottle Gourd, making it a versatile solution for farmers dealing with hard-to-manage weed infestations.

This herbicide works systemically—it is absorbed through the roots and shoots and moves both upwards (via xylem) and downwards (via phloem) throughout the weed plant. Once inside, it inhibits the ALS (acetolactate synthase) enzyme, which is essential for producing amino acids needed for weed growth and cell division. Affected weeds stop growing soon after application and eventually die off. Headshot delivers effective control at low doses, reducing the chemical load on the field while ensuring strong weed management. It is applied during the vegetative phase of the crop, targeting weeds at the right stage for maximum impact.

By controlling nutgrass and other sedge weeds, Headshot reduces competition for water, nutrients, and sunlight, helping crops grow healthier and produce better yields. Its selective nature means it targets weeds without harming the main crop when used as directed. With easy-to-use water dispersible granules and clear dosage guidelines, Headshot is a practical, cost-effective choice for farmers looking to protect their sugarcane, maize, and bottle gourd fields from persistent sedge weeds.

Key Benefits

• Targeted Sedge Control: Specifically effective against tough weeds like Cyperus rotundus (Motha) and Cyperus iria, which are difficult to manage with general herbicides.
• Low-Dose, High Efficacy: Requires only a small quantity of active ingredient per hectare, making it cost-effective and reducing chemical load on the field.
• Systemic Action: Absorbed and translocated throughout the weed plant, ensuring complete control from roots to shoots.
• Selective & Crop Safe: Controls weeds without harming sugarcane, maize, or bottle gourd when applied as per recommended dosage.
• Post-Emergence Flexibility: Can be applied after weeds have emerged, allowing farmers to assess infestation levels before treatment.
• Improved Crop Yield: By eliminating weed competition for water, nutrients, and sunlight, the crop grows healthier and produces better yields.

How It Works

Headshot (Halosulfuron Methyl 75% WG) is a systemic, selective herbicide that works through a specific biochemical mechanism. When applied as a foliar spray, the herbicide is absorbed by the weed's leaves and shoots. It also gets taken up through the roots from the soil. Once inside the plant, it moves through both the xylem (upward) and phloem (downward) transport systems, reaching all parts of the weed including growing points, roots, and underground tubers.

The active ingredient Halosulfuron Methyl inhibits the ALS (acetolactate synthase) enzyme, which is critical for the production of branched-chain amino acids (valine, leucine, and isoleucine). Without these amino acids, the weed cannot synthesize proteins needed for new cell growth. The affected weeds stop growing within a few days of application. Visible symptoms include yellowing, stunting, and gradual dieback. Complete weed death typically occurs within 1 to 3 weeks, depending on weed size, growing conditions, and application timing. Because the herbicide reaches underground tubers and rhizomes, it provides effective control of perennial sedges like Cyperus rotundus, which often regrow from underground parts when treated with contact herbicides alone.

Technical Specifications

Attribute	Details
Brand	Best Agrolife Limited
Product Name	Headshot
Active Ingredient	Halosulfuron Methyl 75% WG
Formulation Type	Water Dispersible Granules (WG)
Chemical Group	Sulfonylurea compound
Mode of Action	ALS enzyme inhibitor (Systemic)
Selectivity	Selective
Application Timing	Post-emergence
Target Weeds	Cyperus rotundus L, Cyperus iria L
Target Crops	Sugarcane, Maize, Bottle Gourd
HSN Code	38089390
Country of Origin	India

Recommended Dosage & Application

The dosage of Headshot varies by crop. Use the following table for accurate application per hectare:

Crop	Target Weeds	Dosage (AI gm/ha)	Formulation (ml/ha)	Water Volume (L/ha)
Sugarcane	Cyperus rotundus L	60–67.5	80–90	375
Maize	Cyperus rotundus L, Cyperus iria L	67.5	50	375
Bottle Gourd	Cyperus rotundus L, Cyperus iria L	67.5	90	375

For foliar application (per acre): Use approximately 36 grams per acre (based on standard conversion from per-hectare dosage).

Method of Application: Slowly add the required quantity of Headshot granules to water and stir well with a stick or rod until properly mixed. Apply as a foliar spray using a knapsack or power sprayer, ensuring uniform coverage over the target weeds.

When to Use

Headshot should be applied during the vegetative phase of the crop, after the weeds have emerged (post-emergence). The best time to spray is when the weeds are actively growing and are at the early growth stage (2–4 leaf stage for annual sedges, or when nutgrass shoots are 10–15 cm tall). At this stage, weeds are more susceptible to the herbicide, and control is most effective.

For sugarcane, apply when the crop is in the early vegetative stage and weeds have emerged. For maize and bottle gourd, apply after weed emergence but before weeds become too large and competitive. Avoid spraying during heavy rainfall or when rain is expected within 6 hours, as this may reduce effectiveness. Apply when the weather is clear and the field has adequate moisture for weed growth, as actively growing weeds absorb the herbicide better.

Step by Step Usage Instructions

1. Check the field: Ensure weeds have emerged and are actively growing. Confirm the crop is at the vegetative stage.
2. Measure the dose: Use the recommended dosage table above to measure the correct quantity of Headshot granules for your field size.
3. Prepare the spray solution: Fill the spray tank with half the required water. Slowly add the measured Headshot granules to the water while stirring continuously.
4. Mix thoroughly: Stir well with a clean stick or rod until the granules are fully dissolved and the solution is uniform.
5. Add remaining water: Top up the tank with the remaining water and mix again.
6. Spray evenly: Apply the solution as a foliar spray, ensuring uniform coverage over the weeds. Avoid spraying directly onto the crop canopy more than necessary.
7. Clean equipment: After spraying, thoroughly rinse the spray tank and equipment with clean water. Dispose of rinse water away from water sources.

Precautions & Safety

• Wear protective gloves, goggles, and a mask while handling and spraying the herbicide.
• Avoid inhalation of spray mist and direct contact with skin and eyes.
• Wash hands and exposed skin thoroughly with soap and water after handling the product.
• Dispose of gloves and empty containers safely after use. Do not reuse empty containers for any purpose.
• Keep the product away from food, animal feed, drinking water, and children.
• Do not apply directly on top of the crop foliage; direct the spray towards weeds.
• Avoid spray drift to nearby water bodies, ponds, or non-target crops.
• Store in a cool, dry, and well-ventilated area away from direct sunlight and heat sources.