HPM Heera Super Herbicide - 2,4-D Sodium Salt 80% WP for Broadleaf Weed Control in Wheat, Maize & Sugarcane

HPM Heera Super is a selective systemic herbicide designed to control a wide range of annual and perennial broadleaf weeds in narrow-leaf crops. It contains 2,4-D Sodium Salt 80% WP (Wettable Powder), a well-known active ingredient from the phenoxycarboxylic acid family. This herbicide works by mimicking natural plant growth hormones, causing uncontrolled growth that eventually kills the weed from within.

Heera Super is effective against stubborn broadleaf weeds like Bathua (Chenopodium album), Gajri (Fumaria), and many others in crops such as wheat, maize, sugarcane, citrus, and grapes. It is also used on non-crop land and for controlling aquatic weeds like water hyacinth. The Sodium Salt formulation has low volatility, which means less risk of vapor drift compared to ester-based formulations, making it safer for nearby sensitive crops when used correctly.

This product is a cost-effective alternative to manual weeding, offering reliable weed control at a fraction of the labor cost. It comes in a convenient wettable powder form that dissolves easily in water for spray application.

Key Benefits

• Selective weed control: Targets broadleaf weeds without harming narrow-leaf crops like wheat, maize, and sugarcane when used as directed.
• Systemic action: Absorbed through leaves and roots, the active ingredient moves to the growing points of weeds for complete control from within.
• Low volatility: The Sodium Salt formulation produces less vapor drift compared to ester formulations, reducing the risk of damage to neighboring sensitive crops.
• Cost-effective: Provides effective weed control at approximately ₹200–₹250 per acre, significantly cheaper than manual weeding.
• Broad spectrum: Controls a wide range of annual and perennial broadleaf weeds, including tough weeds like Bathua, Gajri, and water hyacinth.
• Easy to use: Wettable Powder formulation dissolves quickly in water without clogging sprayer nozzles.
• Post-emergence action: Works on weeds that have already germinated and emerged from the soil.

How It Works

HPM Heera Super contains 2,4-D Sodium Salt, which acts as a synthetic auxin — a chemical that mimics the plant's natural growth hormone. When sprayed on weeds, the active ingredient is rapidly absorbed through both the leaves and roots. It then translocates (moves) within the weed to the meristematic regions — the growing points of shoots and roots.

Once inside the weed, 2,4-D causes a biological overload. It triggers uncontrolled and abnormal cell division and elongation, leading to twisted, curled growth (a condition called epinasty). This rapid, disorganized growth crushes the weed's vascular system — the xylem and phloem that transport water and nutrients. As a result, the weed's food and water supply gets cut off, causing it to starve and die.

Narrow-leaf crops like wheat and maize can safely metabolize (break down) 2,4-D quickly, which is why they remain unharmed while the broadleaf weeds around them die. The first visible symptoms in weeds appear within a few days — curling and twisting of stems and leaves — followed by complete wilting and death within 1 to 3 weeks depending on weed species and weather conditions.

Technical Specifications

Parameter	Details
Brand Name	Heera Super
Technical Name	2,4-D Sodium Salt 80% WP
Formulation	Wettable Powder (WP)
Chemical Group	Phenoxy Carboxylic Acid
IRAC MoA Code	Group 4 (Synthetic Auxins)
Toxicity Label	Yellow / Blue Triangle (Harmful)
Pack Size	500 g (also available in 100 g)
Shelf Life	2 years under normal storage conditions

Recommended Dosage & Application

Crop	Target Weeds	Dosage (g/acre)	Water (L/acre)	PHI (Waiting Period)
Wheat	Leucas aspera, Chenopodium album (Bathua), Argemone mexicana, Fimbristylis miliacea, Anagallis arvensis, Vicia sativa, Amaranthus spinosus, Fumaria parviflora (Gajri)	250–400 g	150–200 L	90 days
Maize	Amaranthus viridis, Trianthema spp., Phyllanthus niruri	500 g	200 L	90 days
Sugarcane	Cyperus rotundus, Convolvulus, various broadleaf weeds	300–800 g	200–250 L	See label
Citrus	Euphorbia spp., Convolvulus, Oxalis corniculata, Fumaria parviflora, Coronopus didymus	500–1280 g	240 L	Over 6 months
Grapes	Convolvulus spp., Tridax procumbens	1000 g	200 L	Over 90 days
Non-Crop Land	Cyperus rotundus, Parthenium hysterophorus, Solanum elaeagnifolium	500–4000 g	200–400 L	NA
Aquatic Weeds	Boerhaavia, Hespidia, Eichhornia crassipes (Water Hyacinth)	740 g	240–400 L	Not applicable

Note: Dosage is in grams since Heera Super is a powder formulation. Always follow the "Dose per Acre" for accurate results. Use high water volume to ensure proper coverage and prevent crop burn.

When to Use

HPM Heera Super is a post-emergence herbicide, meaning it should be applied after weeds have germinated and emerged from the soil. For best results, apply when weeds are young and actively growing — typically at the 2-4 leaf stage for most annual broadleaf weeds.

For Wheat: The critical application window is strictly between 30 to 40 days after sowing (DAS). Spraying too early (at the 1-2 leaf stage) can cause crop deformity like "club wheat" or malformed ears because the young wheat plant cannot detoxify the chemical fast enough. Spraying too late (after 40 DAS) can reduce yield and cause lodging.

For Maize: Apply as a directed spray to the inter-row spaces. Avoid spraying directly into the central whorl of the maize plant to prevent crop injury.

Apply on a calm day when there is no strong wind to prevent spray drift onto sensitive broadleaf crops like cotton, mustard, or vegetables. Avoid spraying when rain is expected within 6 hours of application. Ideal temperature for application is between 15°C to 30°C. Weeds are most susceptible when soil moisture is adequate and they are actively growing.

Step by Step Usage Instructions

1. Calculate the right dose: Measure the required amount of Heera Super powder based on your crop and weed type using the dosage table above. For wheat, use 250–400 g per acre.
2. Prepare the spray solution: Fill the spray tank with half the required amount of clean water. Add the measured powder while stirring continuously. Top up with the remaining water and mix well until the powder is fully dissolved.
3. Use the right equipment: Use a knapsack sprayer fitted with a flat fan nozzle for uniform coverage and reduced drift.
4. Apply at the right time: For wheat, spray strictly between 30-40 days after sowing. Apply as a foliar spray, ensuring thorough coverage of the weed foliage.
5. For maize: Use a directed spray to the inter-row spaces. Avoid spraying the central whorl of the plant.
6. Clean the sprayer: After application, thoroughly rinse the spray tank, hoses, and nozzles with clean water. Do not dispose of rinsate near water bodies.

Compatibility

Do NOT mix Heera Super directly with Zinc Sulphate fertilizers. 2,4-D Sodium Salt can react with Zinc to form a sticky, jelly-like mass (often called "snotballs") that clogs sprayer nozzles and filters. Mixing with Urea is generally considered safer, but it is always recommended to perform a jar test before mixing with any other chemical. For best results, use Heera Super as a standalone spray.

Precautions & Safety

• Personal Protective Equipment (PPE): Always wear gloves, a mask, and goggles during mixing and spraying. The powder can cause eye irritation during the mixing ("creaming") phase.
• Avoid drift: Do not spray on windy days. Cotton, mustard, vegetables, and other broadleaf crops are highly sensitive to 2,4-D. Even slight vapor drift can cause severe damage to these crops.
• Hygiene: Wash hands and face thoroughly with soap and water after handling and spraying. Do not eat, drink, or smoke during application.
• Storage: Store in the original container in a cool, dry, and well-ventilated place away from direct sunlight and heat sources. Keep out of reach of children and pets.
• Environmental care: Avoid contamination of water bodies, ponds, and wells. Do not spray near water sources. Dispose of empty containers responsibly — do not reuse for any purpose.
• First aid: If the product gets into eyes, rinse immediately with plenty of clean water for at least 15 minutes. If swallowed, seek medical attention immediately and show the product label to the doctor.

Side Effects & Phytotoxicity

• Cotton, mustard, vegetables, and other broadleaf (dicot) crops are extremely sensitive to 2,4-D. Even small amounts of spray drift can cause severe leaf curling, stem twisting, and yield loss.
• In wheat, spraying before 30 days after sowing can cause ear deformity ("club wheat") because young wheat plants cannot metabolize the chemical quickly enough.
• Spraying too late in wheat (after 40 DAS) can cause lodging and reduce grain yield.
• In maize, if the spray enters the central whorl, it can cause crop injury. Always use directed spray between rows.
• Heera Super does NOT control grassy weeds like Phalaris minor (Gulli Danda). It is specific to broadleaf weeds only.

PHI / REI & Storage

Crop	PHI (Pre-Harvest Interval)
Wheat	90 days
Maize	90 days
Citrus	Over 6 months
Grapes	Over 90 days
Sugarcane	Refer to product label

Shelf Life: 2 years under normal storage conditions.

Storage Conditions: Store in original container in a cool, dry, well-ventilated area away from direct sunlight, heat sources, and moisture. Keep away from food, feed, and water.