Barrier - Metribuzin 70% WP - Dhanuka
Barrier - Metribuzin 70% WP - Dhanuka
Barrier Herbicide | Metribuzin 70% WP
A selective herbicide for specified grass and broadleaf weeds. The exact crop, weed stage and application timing matter; a wettable powder must not be dosed as though it were a liquid.
What it controls: The named weeds in the crop-specific guide, not every weed in every field.
When to use it: Only at the crop-specific pre- or post-emergence stage permitted by the supplied label.
What to include: Correct powder-weight dose, application method, water volume, soil and crop restrictions.
Why Choose This Product? Key Benefits
- 🌾Grass and broadleaf weed activity: The manufacturer describes coverage of both weed types, with named targets varying by crop.
- 🌱Root uptake: Metribuzin is absorbed mainly through roots, helping it act on susceptible weeds.
- 🍃Leaf uptake too: The active ingredient can also enter through leaves; the permitted timing still depends on the crop label.
- 🎯Selective crop use: Selectivity means use is possible in particular crops under the right conditions. It is not a promise that any crop or variety will tolerate it.
- 🔄Clear resistance group: Group 5 identifies a photosynthesis-inhibiting herbicide. Use that group information when planning weed management, alongside non-chemical methods.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Barrier — Dhanuka Agritech Limited. |
| Technical Name | Metribuzin 70% WP. |
| HRAC MoA Code | Group 5 — inhibition of photosynthesis at Photosystem II. |
| Chemical Group | Triazinone herbicide. |
| Formulation | WP — wettable powder. Product quantity must be measured by weight, not inferred from a liquid-volume listing. |
| Toxicity Label | Pesticide: follow the supplied label’s hazard warnings and protective-equipment requirements. |
How It Works: Mode of Action
Metribuzin disrupts the process plants use to capture energy from light. This explains its herbicide action; it does not make it an insecticide or a fertilizer.
- The weed absorbs the active ingredient: Roots are the main uptake route, with some uptake through leaves.
- Photosynthetic energy flow is blocked: Metribuzin interferes with Photosystem II, part of the plant’s light-powered energy system.
- Susceptible weeds cannot function normally: The loss of normal energy production leads to weed control under the approved application conditions.
Do not rely on a general claim that the product controls herbicide-resistant weeds. Identify the weed and the local resistance problem, and follow crop-specific advice on effective alternatives.
Target Crops & Pests
These crop–weed uses are listed by Dhanuka. Confirm that the current label supplied with your pack includes the intended use. Common English names appear first, with scientific names for identification.
| Crop | Target Pest(s) |
|---|---|
| Potato |
|
| Soybean |
|
| Wheat |
|
| Sugarcane |
|
Group names do not identify an individual species. Match the weed in your field to the supplied label. No tomato programme is supplied here.
Dosage & Application Guide
No numerical Barrier programme is supplied here. The crop-specific powder-weight dose, water, application method and harvest restrictions must be confirmed together.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (g / Acre) | Water (L / Acre) | Dose (g / Litre) | PHI (Days) |
|---|---|---|---|---|
| All crops listed above | See note* | See note* | See note* | See note* |
Measure this wettable powder by the weight-based directions on the supplied label, not as a liquid.
*Dose, water and PHI remain withheld. Grams and millilitres are not interchangeable; do not use an ambiguous liquid-volume rate for this powder.
Pre-emergence means before weeds emerge; post-emergence means after emergence. The exact crop stage, weed stage, soil conditions and rain or irrigation requirements still depend on the label.
How to Apply: Best Practices
- Identify crop and weeds: Check the crop, variety and weed species against the supplied label, including any limits on soil type or crop condition.
- Check the exact timing: Match the crop stage and weed stage to the label. Do not move a timing from wheat to potato or another crop.
- Resolve the dose unit before mixing: This is a wettable powder. Obtain the confirmed weight-based amount and water volume before measuring it.
- Follow the approved application method: Use the label’s sprayer, nozzle, mixing and coverage directions. No adjuvant, fertilizer mixture or crop-specific spray recipe is added here.
- Prevent drift and overlap: Keep treatment off neighbouring crops and avoid accidental double treatment. Clean equipment in the manner required by the label.
- Plan the next crop: Check rotational-crop and replanting restrictions. Do not treat a broad “no residue” claim as proof that every succeeding crop is safe.
Frequently Asked Questions
1. Is Barrier an insecticide?No. Barrier contains Metribuzin 70% WP and is a herbicide for specified weeds.
2. Should I measure it in grams or millilitres?It is a powder formulation. Use the verified weight-based rate on the supplied label. The ambiguous millilitre figures in the public table are not converted into instructions here.
3. Can I use the same timing in every crop?No. Pre- and post-emergence uses depend on the crop and growing conditions. A general timing claim is not a crop-specific schedule.
4. Is it safe for every crop planted afterwards?Do not assume that. Check the current label’s rotational and replanting restrictions, especially where local soils or weather may affect persistence.
5. Can I add a sticker or another herbicide?No automatic mixture recommendation is supplied. Follow both current labels and qualified local advice; a jar test alone does not prove crop safety or permitted use.
Safety & Disclaimer
Use only as permitted by the current Indian label supplied with the product. Wear the label-specified protective clothing and equipment; avoid skin and eye contact and breathing spray or dust. Do not eat, drink or smoke while handling pesticides. Wash exposed skin after work and change contaminated clothing.
Keep the original labelled container securely closed and away from children, animals, food, feed and drinking water. Prevent drift, spillage and equipment washings from reaching ponds, streams, wells or neighbouring crops. Do not reuse empty pesticide containers; follow the label and local disposal requirements.
For accidental exposure or suspected poisoning, stop work and obtain medical help promptly. Take the product label with you so the clinician can identify the formulation. Follow the label first-aid directions; do not invent a home treatment.