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AgroStar
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Waaris (Metribuzin 70% WP) 100 g
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Product details
Waaris Herbicide by AgroStar | 100
g
A selective metribuzin wettable-powder herbicide for the
specified weeds in sugarcane, potato, tomato, soybean and wheat. Choose one crop-specific treatment, not both pre- and
post-emergence applications.
Action: Works through roots and leaves; pre-emergence use requires a clod-free,
sufficiently moist soil surface.
Selection: Match the crop, application window, weed identity and any soil-type
restriction.
Limit: Only one application: choose the permitted pre- or post-emergence option,
not both.
Why Choose This Product? Key Benefits
-
🌱 Root and leaf activity: Supports the
labelled pre- or post-emergence route when the crop and soil conditions match.
-
🎯 Defined weed spectrum: The leaflet lists
crop-specific grasses, sedges and broadleaf weeds rather than all weeds.
-
📋 Crop-specific options: Timing and
soil-type directions distinguish the five crop programmes; pre/post options are alternatives, not a repeat schedule.
Technical Specifications
| Parameter |
Details |
|---|---|
| Active ingredient / formulation |
Metribuzin 70% w/w; WP (wettable powder). |
| Classification |
HRAC/WSSA Group 5; triazinone, photosystem II inhibitor (legacy HRAC C1). |
| Manufacturer / marketer |
The linked leaflet names Ulink Agritech Private Limited as manufacturer and marketer. The product page also lists an Advance
Agro Life registration; check the actual supplied pack. |
| Registration reference |
Ulink: CIR-247857/2023-Metribuzin (WP) (442)-834. Advance Agro Life: CIR-104689/2013-METRIBUZIN (WP)(335) -1. These are
AgroStar-listed references, not batch authentication. |
| This pack / SKU |
100 g; AGS-CP-903 |
How It Works: Mode of Action
Metribuzin is a triazinone herbicide in HRAC/WSSA Group 5. It
inhibits photosynthesis at photosystem II.
-
Uptake: Acts through roots and leaves. Before weed emergence, root activity depends on the specified moist, clod-free soil
conditions.
-
Photosynthesis inhibition: Disrupts photosystem II electron transport, affecting the weed’s ability to use light energy.
-
Protect crop selectivity: Use only the labelled crop, stage, soil condition and quantity. Avoid drift and overlapping spray swaths;
selectivity is not permission to use it on any crop.
Target Crops & Weeds
Use only the exact crop–target pairs and application routes in the
current supplied label.
| Crop |
Target Weed(s) |
|---|---|
| Sugarcane |
Labelled weeds include purple nutsedge (Cyperus rotundus), Bermuda grass (Cynodon dactylon), field bindweed (Convolvulus
arvensis), Chenopodium album, Portulaca oleracea, Anagallis arvensis, Cichorium intybus, Echinochloa colonum, Dactyloctenium
aegyptium, Parthenium hysterophorus and Commelina spp. |
| Potato |
Chenopodium album, Trianthema monogyna, Parthenium hysterophorus, Fumaria spp., Phalaris minor and Melilotus spp. |
| Tomato |
Listed broadleaf weeds and grasses including Trianthema portulacastrum, Digera arvensis, Dactyloctenium aegyptium, Eleusine
indica, Amaranthus viridis, Portulaca oleracea, Ageratum conyzoides and Commelina benghalensis. |
| Soybean |
Digitaria spp., Cyperus esculentus, Cyperus campestris, Borreria spp. and Eragrostis spp. |
| Wheat |
Little seed canary grass (Phalaris minor), lambsquarters (Chenopodium album) and sweet clover (Melilotus spp.). Confirm the
weed before treatment. |
Dosage & Application Guide
Use the formulated WP quantity, not the active-ingredient column.
Every row must be read with its crop-specific timing below. PHI means last treatment to harvest. Potato and tomato share quantities,
but not their treatment windows.
Dose per Acre & Original Label Basis
| Crop |
Product per Acre |
Water per Acre |
Original Label Basis |
PHI |
|---|---|---|---|---|
| Sugarcane: pre-emergence |
Approx. 607.03–1214.06 g |
Approx. 303.51–404.69 L |
1.5–3 kg product + 750–1000 L water/ha |
60 days |
| Sugarcane: post-emergence |
Approx. 607.03–809.37 g |
Approx. 303.51–404.69 L |
1.5–2 kg product + 750–1000 L water/ha |
60 days |
| Potato; tomato |
Approx. 303.51 g |
Approx. 303.51–404.69 L |
0.75 kg product + 750–1000 L water/ha |
30 days |
| Soybean |
Approx. 202.34–303.51 g |
Approx. 303.51–404.69 L |
0.5–0.75 kg product + 750–1000 L water/ha |
30 days |
| Wheat: medium soil |
Approx. 101.17 g |
Approx. 202.34–303.51 L |
0.25 kg product + 500–750 L water/ha |
120 days |
| Wheat: heavy soil |
Approx. 121.41 g |
Approx. 202.34–303.51 L |
0.3 kg product + 500–750 L water/ha |
120 days |
Sugarcane timing: Choose pre-emergence at the first vapsa
condition (suitable soil moisture) or 3–5 days after planting, OR post-emergence 25–30 days after planting. For Cyperus rotundus,
Cynodon dactylon and Convolvulus arvensis, the leaflet requires the higher recommended dose within the selected
programme.
Potato and tomato timing: Potato: pre-emergence 3–4 days
after planting, OR post-emergence from emergence until the first potato plants reach 5 cm. Tomato: one week before transplanting, OR
15 days after transplanting. Do not combine the two options.
Soybean and wheat timing: Soybean: pre-emergence 1–2 days
after sowing. Wheat: the table states 35 days after sowing and the precautions say within 35 days, with 2–3-leaf weeds and a 2–5-leaf
crop. Confirm the day and both stage conditions; do not extend the window.
Application and soil limits: Only one application, pre OR
post. Do not use on sandy soil in wheat; use its medium/heavy-soil rate. Wheat: avoid overlap and water stagnation, keep the second
irrigation light, and do not broadcast or tank-mix with other herbicides.
Units and entry: Acre values equal hectare quantities ×
0.40468564224, rounded to two decimals; product kilograms are displayed as grams per acre. Retain the original hectare basis. No
per-litre/tank recipe or numerical worker-entry interval is inferred.
How to Apply: Best Practices
-
Choose the correct window: Identify the crop and weeds, select one allowed treatment window and check the crop’s PHI. For wheat,
check soil type and the stated day/leaf-stage limits.
-
Prepare the field and spray: For pre-emergence use, keep the field clod-free with sufficient moisture as stated on the label, and
do not disturb the soil after treatment. Make a thin paste with a little clean water, add slowly to the required water and stir
thoroughly; stir again after breaks.
-
Use directed, even coverage: Use a knapsack or foot-operated sprayer with flat-fan or flood-jet nozzles. Avoid drift to
neighbouring crops and overlapping swaths. Keep a steady nozzle height; follow the supplied label’s equipment settings.
-
Do not improvise mixtures: Never combine with insecticides, urea or growth regulators. In wheat, do not tank-mix with other
herbicides. Sugarcane combination references are not a ready-made tank recipe: obtain exact current-label confirmation before any
mixture.
-
Clean and record: Wash equipment with water and detergent/soap after use, containing the washings. Never discard surplus into
cropland or stagnant/flowing water. Record the single treatment and crop-specific PHI.
Frequently Asked Questions
1. Can I apply once before emergence and again afterwards?
No. The leaflet allows only one application, either the permitted pre- or post-emergence option. The alternatives do not authorise both.
No. The leaflet allows only one application, either the permitted pre- or post-emergence option. The alternatives do not authorise both.
2. Why are there separate sugarcane pre- and post-emergence rates?
The original leaflet gives different programmes: pre-emergence at first vapsa or 3–5 days after planting, or post-emergence 25–30 days after planting. Match the rate to the chosen window and weed.
The original leaflet gives different programmes: pre-emergence at first vapsa or 3–5 days after planting, or post-emergence 25–30 days after planting. Match the rate to the chosen window and weed.
3. What extra checks apply in wheat?
Use only the medium/heavy-soil programme, not sandy soil. Observe the 35-day table timing, within-35-day precaution and leaf-stage conditions, with a 120-day PHI. Avoid overlap, water stagnation, broadcasting and other-herbicide tank mixes.
Use only the medium/heavy-soil programme, not sandy soil. Observe the 35-day table timing, within-35-day precaution and leaf-stage conditions, with a 120-day PHI. Avoid overlap, water stagnation, broadcasting and other-herbicide tank mixes.
4. Can it be mixed with insecticides or urea?
No. The leaflet prohibits insecticide, urea and growth-regulator combinations. Do not convert its general sugarcane compatibility references into a mixture without exact current directions.
No. The leaflet prohibits insecticide, urea and growth-regulator combinations. Do not convert its general sugarcane compatibility references into a mixture without exact current directions.
5. Does this 100 g pack set the area or tank size?
No. Weigh the formulated product and pair it with the crop-specific area and water quantities. Pack size does not establish tank dose or coverage.
No. Weigh the formulated product and pair it with the crop-specific area and water quantities. Pack size does not establish tank dose or coverage.
Safety & Disclaimer
Before you use it: Read the current supplied pack label and leaflet. Match the crop, target,
formulation, route, first-treatment timing, product quantity, water or placement basis, harvest interval and worker-entry
restrictions. This overview does not replace the label or authenticate a batch.
Harmful if swallowed and may irritate skin and eyes. Wear the specified protective clothing, gloves,
boots, mask/respiratory protection and eye protection. Avoid dust and spray mist; do not mix with bare hands or eat, drink or
smoke during handling. Wash exposed skin and contaminated clothing after use.
Keep children, animals and unprotected people away. Prevent drift, spills, surplus spray and equipment
washings from contaminating neighbouring crops, drains or water. Follow the supplied pack’s worker-entry restrictions; absence
of a stated numerical interval is not permission for immediate entry.
Store locked in the tightly closed original container in a dry, ventilated place away from heat,
ignition sources, food, feed, seed and fertilizer. The SDS lists storage from −10°C to 40°C. Avoid dust accumulation. Do not
reuse containers or burn the product or empty packaging; follow authorised disposal requirements.
If exposure or illness occurs, stop work and seek urgent medical advice with the product container or
label. Move away from exposure, wash affected skin and rinse eyes with clean water. Do not induce vomiting or self-administer
charcoal, ipecac or antidotes; obtain immediate professional guidance. Never give anything by mouth to an unconscious
person.
Product guidance: AgroStar product information · Product leaflet · Safety data
sheet · HRAC
classification.
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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