Hastar - Tembotrione 34.4% w/w SC - ADAMA
ADAMA
Hastar - Tembotrione 34.4% w/w SC - ADAMA
Product details
Hastar Herbicide | Tembotrione 34.4% w/w SC
A post-emergence maize herbicide for grasses and broadleaf weeds, used with the required
surfactant.
Crop and weeds: Maize: specified grassy and broadleaf weeds.
When to apply: Post-emergence, with the exact crop and weed stage determined by the
supplied label.
Required addition: A surfactant is part of the treatment. Confirm its identity,
quantity and preparation directions before mixing.
Why Choose This Product? Key Benefits
-
🌱 Works on emerged weeds: Post-emergence use
provides an option once susceptible weeds have emerged, rather than relying only on a pre-emergence soil treatment.
-
🌾 Grass-weed control in maize: Includes
susceptible Echinochloa and Brachiaria species within its crop-specific weed spectrum.
-
🌿 Broadleaf-weed coverage: Also targets
specified broadleaf weeds, including Trianthema portulacastrum, within the maize use.
Technical Specifications
| Parameter |
Details |
|---|---|
| Brand |
Hastar | ADAMA India |
| Active ingredient |
Tembotrione 34.4% w/w |
| Formulation |
SC: suspension concentrate |
| Product type |
Post-emergence herbicide for maize |
| HRAC/WSSA group |
Group 27: HPPD inhibitors |
| Chemical family |
Triketone |
| Required addition |
Surfactant, with its exact identity and quantity confirmed before use |
How It Works: Mode of Action
-
Inhibits HPPD: Tembotrione inhibits 4-hydroxyphenylpyruvate dioxygenase, an enzyme involved in normal plant pigment protection.
-
Disrupts protective pigments: This interferes with carotenoid formation, reducing protection of chlorophyll from excess light.
-
Causes bleaching and impaired growth: Susceptible weeds bleach as pigment protection is disrupted. The appearance and speed of
symptoms depend on the treatment conditions.
Bleaching is not a guarantee that every weed will die within a fixed number of days. Follow a crop-appropriate
resistance plan; changing to another HPPD-inhibitor brand alone does not change the mode of action. Do not assume that every following
crop is safe without checking rotation restrictions.
Maize: Target Grass & Broadleaf Weeds
| Weed group |
Targets to match to the label |
|---|---|
| Grasses |
Echinochloa species; Brachiaria species |
| Broadleaf weeds |
Trianthema portulacastrum |
Use these weed matches only within the supplied Hastar maize directions. Do not extend the scope to sedges,
every maize hybrid or other crops without the corresponding product instructions.
Dosage & Application Guide
Complete the required surfactant treatment
Use as the label-directed post-emergence treatment in maize, together with the required surfactant. Obtain the
exact maize and weed stage, application method, surfactant identity and quantity, and preparation order before measuring either
component. Post-emergence alone does not establish a fixed number of days after sowing or a particular leaf count.
Confirm the product quantity, water, equipment, coverage and harvest interval with the complete surfactant
directions. Do not substitute a universal wetting-agent recipe, infer a dose from the bottle size or add atrazine automatically. A
pre-harvest interval is the minimum time from the final treatment to harvest. A missing interval is not a zero-day interval. Harvest
restrictions, worker re-entry periods and repeat-treatment intervals are separate requirements.
How to Apply: Best Practices
-
Identify the crop and weeds: Confirm maize and the susceptible weed species, and check the permitted crop and weed stages.
-
Obtain the full surfactant directions: Do not omit the required surfactant or substitute a different adjuvant without the matching
product directions.
-
Prepare the permitted treatment: Follow the specified quantities, mixing order, water and equipment requirements. Do not turn an
area rate into an improvised pump recipe.
-
Check conditions and placement: Follow the label’s weather, crop-condition, coverage and drift precautions. Avoid contamination of
neighbouring crops and water sources.
-
Plan rotation and records: Record the field, crop, area, product and date. Check following-crop, repeat, re-entry and harvest
restrictions separately.
Frequently Asked Questions
1. Is Hastar a pre-emergence herbicide?
The use described here is post-emergence in maize. Follow the precise maize and weed-stage directions rather
than treating it as a pre-emergence soil programme.
2. Can I leave out the surfactant?
No. A surfactant is part of the stated treatment. Obtain its exact identity, quantity and preparation
directions before use.
3. Can I use a standard oil or wetting-agent amount?
Do not assume so. Different adjuvants are not interchangeable, and a generic concentration does not
establish the required Hastar treatment.
4. Does bleaching mean all weeds will die in a few days?
No. Bleaching is consistent with the mode of action, but it is not an exact kill-time or complete-control
guarantee. Monitor the field without making an automatic repeat application.
5. Can Hastar be mixed with another pesticide?
Only when both current labels permit the exact products, crop and application method. Do not assume that a
fertilizer, adjuvant or another pesticide can be added simply because it can be physically mixed.
Safety & Disclaimer
Before you use it: Read the supplied Indian label and leaflet before opening the pack, and use the
product only for its listed crop and target. Wear the specified protective clothing and equipment. Avoid skin and eye contact,
inhalation and drift. Keep other people, children and animals away during handling and application. Do not eat, drink or smoke
while handling the product; wash thoroughly after work.
Keep the product in its original labelled container, away from children, food, animal feed and drinking
water. Keep pesticide, drift, leftovers, runoff and equipment washings away from water sources and non-target areas. Follow the
pack’s precautions for pollinators, livestock and other non-target organisms. Never reuse empty pesticide containers; follow the
pack and local approved disposal requirements.
If exposure or suspected poisoning occurs, stop work and seek medical help promptly with the product label.
Do not self-administer antidotes, use home remedies or improvise treatment. This description does not replace the supplied label
or professional medical advice.