Tasar - Imazethapyr 35% + Imazamox 35% WG - Parijat
Tasar - Imazethapyr 35% + Imazamox 35% WG - Parijat
Tasar Herbicide by Parijat
Imazethapyr 35% + Imazamox 35% WG for early post-emergence treatment of listed weeds in soybean, groundnut,
cluster bean and redgram.
Crop-weed fit: Four separate crop lists; the redgram list is narrower than those
for soybean and groundnut.
Treatment window: Early post-emergence, when weeds are at the 2–3-leaf stage, under
the complete crop directions.
Application requirements: Proper soil moisture, a flat-fan knapsack spray and the
specified MSO adjuvant as part of the full programme.
Why Choose This Product? Key Benefits
-
🧪 Two active ingredients: Imazethapyr and
imazamox are combined in water-dispersible granules, while sharing the same HRAC group.
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🌿 Crop-specific mixed-weed scope: The named
lists include grasses and broadleaf weeds, with a narrower broadleaf list in redgram.
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🌱 Young-weed treatment window: The 2–3-leaf
weed stage gives a practical scouting point rather than an unrestricted rescue use on mature weeds.
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🍃 Movement towards growing tissue: The
imidazolinone ingredients move within susceptible plants and inhibit a growth-essential enzyme system.
Technical Specifications
| Parameter |
Details |
|---|---|
| Brand Name |
Tasar by Parijat |
| Technical Name |
Imazethapyr 35% + Imazamox 35% WG |
| Product Class |
Early post-emergence herbicide |
| Formulation |
WG: water-dispersible granules |
| HRAC MoA Code |
Group 2 for both ingredients; ALS inhibition |
| Chemical Group |
Imidazolinones |
| Application Equipment |
Knapsack sprayer with flat-fan nozzle |
| Adjuvant Type |
MSO, as specified in the complete crop directions |
How It Works: Mode of Action
-
The treatment reaches young weed foliage: Apply at the stated leaf stage with thorough foliage coverage. The ingredients can move
in susceptible plants towards growing tissue.
-
Both ingredients inhibit the same enzyme: Imazethapyr and imazamox inhibit acetolactate synthase, also called acetohydroxyacid
synthase. ALS or AHAS is needed to make branched-chain amino acids.
-
Normal new growth is disrupted: Disrupted amino-acid production affects growth in susceptible weed tissues and can lead to plant
death, rather than proving immediate visible knockdown.
Two ingredients do not provide two modes of action: both are HRAC Group 2. A switch to another Group 2 brand
alone does not change the biological target. Soil activity against later-germinating weeds is not a guaranteed weed-free duration or
permission to use a different application window.
Target Crops & Weeds
| Crop |
Target weeds |
|---|---|
| Soybean |
Echinochloa spp.; Dinebra arabica; Digitaria spp.; Brachiaria mutica; Commelina benghalensis; Euphorbia hirta |
| Groundnut |
Echinochloa colona; Digitaria arvensis; Commelina benghalensis; Euphorbia hirta; Amaranthus viridis; Physalis minima;
Brachiaria spp.; Trianthema portulacastrum |
| Cluster bean |
Echinochloa colonum; Euphorbia spp.; Digitaria arvensis; Amaranthus viridis |
| Redgram |
Euphorbia spp.; Amaranthus viridis |
Keep each crop’s weed list intact. Genus-level entries do not identify every species, and a soybean target is
not automatically a redgram target. Digitaria arvensis must not be substituted with the different name Digera
arvensis.
Dosage & Application Guide
2–3-Leaf Weeds, Soil Moisture & MSO Planning
Apply early after emergence when weeds are at the 2–3-leaf stage, under the complete directions for the crop.
Ensure proper soil moisture before application. Confirm the herbicide quantity, spray water, required MSO adjuvant identity and
amount, harvest interval and any following-crop restrictions together before measuring.
Begin with one-quarter of the specified total water, add the measured Tasar and stir well with a stick or rod.
Add this mixture to the remaining specified water and use a knapsack sprayer fitted with a flat-fan nozzle for thorough weed-foliage
coverage. Follow the complete adjuvant mixing directions; do not omit MSO, guess its quantity or substitute an arbitrary spray
oil.
How to Apply: Best Practices
-
Identify weeds within the crop list: Match soybean, groundnut, cluster bean or redgram to its own weeds. Confirm unfamiliar names
rather than adding targets from another crop or herbicide.
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Use the 2–3-leaf weed window: Treat early after emergence at the stated weed stage. Soil activity does not turn this into an
unrestricted pre-emergence programme or justify a higher rate on older weeds.
-
Check soil moisture: Ensure proper moisture before spraying. Do not try to compensate for unsuitable or dry field conditions by
increasing herbicide or adjuvant concentration.
-
Establish the full MSO directions: Use the specified MSO adjuvant only with its complete identity, quantity and mixing
instructions. Both current labels must permit the proposed combination for the crop and use; do not substitute any convenient oil.
-
Mix and cover with the stated equipment: Stir the product into one-quarter of the specified water using a stick or rod, then add it
to the remaining water. Do not mix with bare hands. Use a flat-fan knapsack spray and thorough weed-foliage coverage.
-
Protect bees, water and later crops: Avoid spraying during bee-foraging periods. Keep treatment away from water bodies and
aquaculture or pisciculture. Follow harvest, re-entry and following-crop restrictions, scout later weed flushes and do not repeat
automatically.
Frequently Asked Questions
1. Do the two ingredients provide two modes of action?
No. Imazethapyr and imazamox are both imidazolinone herbicides in HRAC Group 2. They inhibit the same ALS
enzyme system, which matters when choosing later weed-management measures.
2. What is the application stage?
Early post-emergence, when weeds are at the 2–3-leaf stage, under the complete crop-specific directions. Do
not interpret soil activity as a separate pre-emergence programme or use the crop’s leaf count instead of the weed stage.
3. Can I omit the adjuvant or use any spray oil?
Do not assume either is suitable. MSO is part of the described programme. Obtain its exact identity,
quantity and mixing directions, and use the combination only when both current labels permit it for the crop and use.
4. Are all four crop weed lists identical?
No. For example, redgram lists Euphorbia spp. and Amaranthus viridis, while soybean and groundnut have wider
lists. Keep targets with their own crop and do not substitute Digera arvensis for Digitaria arvensis.
5. What environmental precautions are especially important?
Tasar is toxic to honeybees, fish and aquatic organisms. Avoid spray application during bee-foraging periods
and keep it away from water bodies, aquaculture and pisciculture, following the current label’s environmental and disposal
instructions.
Safety & Disclaimer
Before you use it: Read the current Tasar label and leaflet before use, including the complete
herbicide-and-MSO programme, protective equipment, harvest, re-entry, following-crop, first-aid, storage and disposal
restrictions.
Do not mix with bare hands. Wear the prescribed protective clothing and equipment; avoid skin, eye and
mouth contact and inhaling powder, spray mist, fog or vapour. Do not eat, drink, smoke or chew while handling, and wash thoroughly
afterwards. Use proper soil moisture and calibrated equipment, prevent drift and never reuse empty containers.
Toxic to honeybees: avoid spraying during bee-foraging periods. Toxic to fish and aquatic organisms: do not
use near water bodies, aquaculture or pisciculture. Store in the original labelled container away from water, fire, food, feed,
children and animals. Seek medical help promptly after exposure or illness and take the pack or label; no specific antidote is
known, and a clinician should provide symptomatic treatment.