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MetriMetribuzin 70% WP
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Product details
Tata Metri Herbicide by Rallis India
Metribuzin 70% WP for the listed crop–target uses.
What it controls: The listed weeds in soybean, wheat, sugarcane, potato and tomato.
When to use it: Use only the crop’s verified pre- or post-emergence programme. These timings are not interchangeable between crops.
What to include: Use the matching crop programme and current pack directions. Do not add a sticker, fertiliser or pesticide without a verified recommendation.
Why Choose This Product? Key Benefits
- 🌱Root uptake: Rallis describes metribuzin as absorbed mainly through roots.
- 🍃Leaf uptake: It is also absorbed through leaves and moves in the xylem.
- 🌾Wheat weed scope: Canary grass, common lambsquarter and sweet-clover types are the listed wheat targets; control of all resistant populations is not promised.
- 🗓️More than one timing option: The manufacturer describes pre- and post-emergence uses, with crop-specific programmes kept separate below.
- ☀️Photosynthesis inhibition: Group 5 activity interrupts photosystem II electron transfer in susceptible weeds.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Tata Metri Herbicide | Rallis India |
| Technical Name | Metribuzin 70% WP |
| HRAC MoA Code | Group 5 | photosystem II inhibitors, D1 serine 264 binders |
| Chemical Group | Triazinones |
| Formulation | WP | wettable powder |
| Toxicity Label | Follow the toxicity colour band, warning and protective-equipment directions on the current pack. |
How It Works: Mode of Action
- Absorption and movement: Metribuzin enters mainly through weed roots and also leaves, then moves through the xylem.
- Photosystem II is blocked: It binds at the Group 5 D1 protein site, interrupting electron transfer used in photosynthesis.
- Susceptible weed growth fails: The loss of normal photosynthetic function damages susceptible weeds. Selectivity depends on the approved crop, stage, soil and rate, not just the word selective.
Compare HRAC groups, not just brands, when planning resistance management. A different brand with the same active ingredient is not a different mode of action. Use only approved crop options and local resistance-management advice.
Target Crops & Pests
The crop–target pairs below follow the manufacturer’s Indian product page. A listed crop does not remove the need to confirm its complete current use directions.
| Crop | Target Pest(s) |
|---|---|
| Soybean |
|
| Wheat |
|
| Sugarcane |
|
| Potato |
|
| Tomato |
|
Confirm the weed species before treatment. Similar names do not mean the product controls every species.
Dosage & Application Guide
The quantities below are formulation-level references from the Indian CIBRC Major Uses compilation through 30 September 2025, not a current branded pack label or legal approval. Confirm each complete programme against the current pack before use.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (g / Acre) | Water (L / Acre) | Dose (g / Litre) | PHI (Days) |
|---|---|---|---|---|
| Soybean | 202.3–303.5 500–750 g/ha |
303.5–404.7 750–1000 L/ha |
See note* | 30 |
| Wheat — medium soil | 101.2 250 g/ha |
202.3–303.5 500–750 L/ha |
See note* | 120 |
| Wheat — heavy soil | 121.4 300 g/ha |
202.3–303.5 500–750 L/ha |
See note* | 120 |
| Sugarcane — pre/post | See note* | 303.5–404.7 750–1000 L/ha |
See note* | 60 |
| Potato/tomato pre* | 303.5 750 g/ha |
303.5–404.7 750–1000 L/ha |
See note* | 30 |
| Potato/tomato post* | See note* | 303.5–404.7 750–1000 L/ha |
See note* | 30 |
*No independent concentration is verified. Potato/tomato post-emergence doses and both sugarcane doses are held pending current-pack resolution; the retained water and PHI values are formulation references, not complete branded programmes.
Potato/tomato pre*: the formulation reference lists 750 g/ha (303.5 g/acre); the older exact-formulation manufacturer catalogue lists a rounded 300 g/acre. Potato/tomato post*: that catalogue lists 150 g/acre, conflicting with the formulation reference’s 750 g/ha (303.5 g/acre). The post-emergence product dose is therefore held; do not choose a rate without the current pack.
Potato timing reference: pre-emergence 3–4 days after planting; post-emergence from emergence until the first potato plants reach 5 cm. Tomato timing reference: pre-plant one week before transplanting; post-plant 15 days after transplanting. Each reference programme lists 750–1000 L/ha water and 30 days PHI. Exact current-label methods remain unconfirmed.
Sugarcane product rates are held because the formulation reference’s product and active-ingredient columns do not reconcile. The older exact-formulation manufacturer catalogue separately lists pre-emergence 600 g/acre and post-emergence 500 g/acre. These do not resolve the conflict; do not correct the source or combine those rates with reference water/PHI to create a programme.
Sugarcane pre-emergence reference: at the first workable spray condition or 3–5 days after planting; post-emergence reference: 25–30 days after planting. Both list 750–1000 L/ha water and 60 days PHI. The product dose remains unresolved for each.
Wheat rates are soil-specific: 250 g/ha on medium soil and 300 g/ha on heavy soil. The older manufacturer catalogue describes post-emergence timing, not a verified current-label method. Soybean timing/method, wheat method, and re-entry/repeat limits for all crops remain unconfirmed.
The catalogue is an older manufacturer reference, not a verified current pack label. Confirm all methods and timings against the current pack. No crop-rotation safety or absence of soil residues is promised.
Acre figures are approximate conversions of the stated hectare quantities using 0.40468564224. Keep product and water paired. No per-litre or tank rate has been calculated from area rates.
PHI is the minimum time between the last treatment and harvest, not the worker re-entry interval. Follow current label and local restrictions; missing instructions must be resolved before application.
How to Apply: Best Practices
- Identify crop, weeds and soil: Match the full crop–weed list. In wheat, distinguish medium from heavy soil rather than averaging the rates.
- Select the crop-specific timing: Do not apply a general post-emergence instruction to every crop. Keep the listed sugarcane, potato and tomato timing alternatives distinct.
- Resolve held directions first: Resolve sugarcane and potato/tomato post-emergence doses, plus missing methods or timings, against the current pack/manufacturer guidance. Do not infer a foliar or soil route from the WP formulation.
- Measure product and water together: Use calibrated equipment and the current approved programme. Do not manufacture a tank dilution from a hectare rate or use water volume alone to set the dose.
- Protect adjoining crops: Follow label drift, water-protection and succeeding-crop restrictions. Selectivity for a listed crop does not mean harmlessness to neighbouring vegetation.
Frequently Asked Questions
1. Which crops are included?The manufacturer lists soybean, wheat, sugarcane, potato and tomato, each with its own weeds and programme.
2. Is 100–400 g/acre a universal rate?No. Wheat depends on soil type and soybean has its own range. Potato/tomato pre-emergence has a reference rate, but their post-emergence dose and both sugarcane doses are held because sources conflict.
3. Can it be used before and after emergence on every crop?No blanket timing is supported. Separate alternatives are documented for sugarcane, potato and tomato; an older manufacturer catalogue describes wheat post-emergence. Confirm current crop-specific directions, including soybean timing.
4. Why is the sugarcane dose missing?The formulation table’s active-ingredient and product columns conflict. An older manufacturer catalogue lists 600 g/acre pre-emergence and 500 g/acre post-emergence, but does not resolve the conflict. Water, timing and PHI references remain; no product dose is selected.
5. Can I mix it with other products?No blanket tank-mix compatibility is established here. Use a mixture only when the current labels and qualified crop advice support it; a physical jar test alone does not prove crop safety or legal approval.
Safety & Disclaimer
Read the current pack and leaflet before handling. Wear the specified protective clothing and equipment; avoid contact with skin and eyes and inhaling dust or mist. Do not eat, drink or smoke during handling.
Keep children, animals, food, feed and drinking water away. Prevent drift, runoff and washings from reaching water bodies or neighbouring crops. Follow label safeguards for bees and other non-target organisms.
Store locked in the original labelled container, away from food and feed. Never reuse an empty pesticide container. Follow the label and local collection/disposal requirements.
If exposure or suspected poisoning occurs, seek medical help promptly and take the product label. Do not attempt an antidote or induce vomiting without medical instructions.
Delivery & returns
Usually delivered in 2–5 days after dispatch.
Return or exchange within 7 days of delivery. Packs must be unopened with seals intact, and return pickup is free. Read the refund policy
Safety tips
Read the label and leaflet before use. Wear gloves, a mask and full sleeves while spraying. Do not eat, drink or smoke while spraying. Keep away from children, food and animal feed.
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