AgroStar Quiz Master (Quizalofop Ethyl 5% EC) 250 ml
AgroStar Quiz Master (Quizalofop Ethyl 5% EC) 250 ml
Quiz Master Herbicide by AgroStar | 250 ml
Quiz Master is a selective post-emergence herbicide for labelled grassy weeds in black gram, cotton, groundnut, onion and soybean. This listing is the 250 ml pack.
Active ingredient: Quizalofop-ethyl 5% w/w EC.
What it controls: The crop-specific grassy weeds listed below, not every weed type.
When to use it: Post-emergence, within the crop-specific sowing or transplanting window shown below.
Why Choose This Product? Key Benefits
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🎯 Grass-weed focus: Targets the grassy weeds specified for each crop, including crop-specific barnyard grass, crab grass, goose grass and love grass.
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🌿 Selective use: Designed for the five labelled crops when the correct crop, weed and application programme are followed.
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🍃 Systemic action: The herbicide is absorbed by susceptible weeds and moves within them, rather than relying only on surface contact.
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💧 Post-emergence EC formulation: The liquid concentrate is mixed with water and sprayed after weed emergence at the labelled crop stage.
Technical Specifications
| Parameter |
Details |
|---|---|
| Brand Name |
Quiz Master by AgroStar |
| Active Ingredient / Composition |
Quizalofop-ethyl 5% w/w |
| Product Type |
Selective post-emergence herbicide |
| Formulation |
EC (emulsifiable concentrate) |
| Mode of Entry |
Systemic; absorbed by weeds and translocated |
| Manufacturer / Marketer |
Ulink Agritech Private Limited, as named in the product leaflet. Check the supplied pack for its batch manufacturer. |
| This Pack |
250 ml |
AgroStar lists these registration references: Advance Agro Life, CIR-213816/2022-QUIZALOFOP-ETHYL (EC) (440)-111; and Ulink Agritech, CIR-210856/2022-QUIZALOFOP-ETHYL(EC) (440)-94. Use the manufacturer and registration printed on your supplied pack; these references do not identify an individual batch.
How It Works: Mode of Action
Quiz Master combines post-emergence use with absorption and movement within susceptible grassy weeds. Correct identification, timing and coverage remain essential. Field and weather conditions affect results; do not assume a fixed rainfast interval, a guaranteed weed-kill date or no regrowth.
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Post-emergence treatment: Quiz Master is applied to the emerged grassy weeds specified for the crop. It is not a general pre-emergence soil treatment.
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Absorption and movement: AgroStar describes uptake by the weeds and movement within them. Uniform spray coverage supports contact with the target weeds.
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Selective grass-weed control: Match the grass weed to its crop row and keep the crop-specific timing. This does not imply control of every broadleaf weed or sedge, or safety on cereal crops.
Target Crops & Weeds
The targets here are grassy weeds. Each crop row below is paired with the same crop’s product rate, water, timing and harvest interval in the application guide.
| Crop |
Target Weed(s) |
|---|---|
| Black gram |
|
| Cotton |
|
| Groundnut |
|
| Onion |
|
| Soybean |
|
Dosage & Application Guide
These post-emergence spray programmes apply only to the corresponding crop–weed pairings above. Product quantities are for the formulated herbicide, not pure active ingredient. Apply using a knapsack sprayer fitted with a flat-fan nozzle.
Dosage per Acre & Pre-Harvest Interval (PHI)
| Crop & Application Timing |
Product / Acre |
Water / Acre |
Original Label Basis |
PHI (Days) |
|---|---|---|---|---|
| Black gram 14–22 days after sowing |
Approx. 304–405 ml |
Approx. 202 L |
750–1,000 ml product + 500 L water / ha |
52 |
| Cotton 15–27 days after sowing |
Approx. 405 ml |
Approx. 202 L |
1,000 ml product + 500 L water / ha |
94 |
| Groundnut 19–25 days after sowing |
Approx. 304–405 ml |
Approx. 202 L |
750–1,000 ml product + 500 L water / ha |
89 |
| Onion 13–27 days after transplanting |
Approx. 304–405 ml |
Approx. 152–182 L |
750–1,000 ml product + 375–450 L water / ha |
7 |
| Soybean 20–24 days after sowing |
Approx. 304–405 ml |
Approx. 202–243 L |
750–1,000 ml product + 500–600 L water / ha |
95 |
Acre quantities are approximate conversions of the original hectare rates, which remain in the table. One hectare is approximately 2.471 acres. Do not turn these figures into a universal per-litre or per-pump recipe or treat a pack as fixed area coverage.
Timing matters: Onion timing is counted after transplanting; the other crop windows are counted after sowing. Do not exchange the crop-specific rates, water volumes or windows.
Pre-harvest interval (PHI): Wait the stated number of days between the final spray and harvest for that crop. Worker-entry requirements are separate. Follow the current supplied label for entry, any further applications and planting a following crop.
How to Apply: Best Practices
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Match the exact formulation: Use directions for Quiz Master, quizalofop-ethyl 5% EC. Do not substitute the directions for Quiz Master Plus 10% EC or another formulation.
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Identify the crop and grass weeds: Use only on the crop–weed pairings above. Do not apply on paddy, wheat, sorghum, maize, barley, pearl millet or sugarcane.
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Keep the crop-specific timing: Use the sowing-based window for black gram, cotton, groundnut and soybean. Count the onion window from transplanting, not sowing.
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Measure the treated area: Measure formulated product in millilitres and use the matching water quantity. Pack size is a sale quantity, not a fixed area or pump dose.
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Prepare the emulsion: Shake the bottle before use. Add the measured product slowly to water and stir thoroughly with a rod or stick until properly emulsified. Never mix with bare hands.
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Use the labelled equipment: Apply with a knapsack sprayer fitted with a flat-fan nozzle. Calibrate the sprayer and distribute the crop-specific spray quantity uniformly.
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Avoid drift and contamination: Do not spray against the wind. Keep spray and washings out of water sources and away from neighbouring crops. Wash the sprayer thoroughly before and after use.
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Respect mixing and interval restrictions: Do not mix with any fungicide or insecticide. Obtain current label or manufacturer guidance for other tank partners, worker entry and any further treatment; do not create an automatic repeat schedule.
Frequently Asked Questions
No. This listing is quizalofop-ethyl 5% w/w EC. Quiz Master Plus is a different-strength product. Do not transfer dose or application directions between them.
No. Use the crop-specific product and water quantities for the measured treatment area. A pack is the quantity you buy, not a universal spray dose.
No. Use it for the grassy weeds listed with each crop. This page does not claim broadleaf-weed or sedge control. Keep it away from the excluded cereal and sugarcane crops.
The onion application window is 13–27 days after transplanting. Its pre-harvest interval is 7 days after the final spray. Other crops have different windows and harvest intervals; PHI is not a worker-entry interval.
No. AgroStar states not to mix Quiz Master with any fungicide or insecticide. Do not assume that this permits other tank mixes; follow the current supplied label and obtain advice for the exact mixture.
Safety & Disclaimer
Before you use it: Read the current supplied pack label and leaflet. Match the crop, weed, formulation, dose, water, method, timing and all restrictions. Use only on the specified crops. This overview does not authenticate an individual pack or replace its label directions.
Wear the label-specified protective clothing, chemical-resistant gloves, eye protection and respiratory protection. Avoid breathing spray mist and contact with skin, eyes or mouth. Do not eat, drink or smoke while handling. Wash after use and clean contaminated clothing before reuse. Keep children, animals and unprotected people away.
Keep product, spray drift and washings out of drains, streams and other water sources. Store tightly closed in the original container in a cool, dry, ventilated, locked place away from food, animal feed, heat, sparks and open flames.
Do not reuse empty containers. Follow the current label and local authorised requirements for disposal of product, washings and packaging. If exposure or illness occurs, stop work, seek urgent medical help and show the pack label or safety data sheet. Do not induce vomiting.
Product guidance: AgroStar product information · Product leaflet · Safety data sheet.