Benister - Bispyribac-Sodium 10% SC - HPM
Benister - Bispyribac-Sodium 10% SC - HPM
Benister Herbicide by HPM
A selective, systemic post-emergence herbicide for the listed rice weeds. Confirm the rice establishment system and the current pack’s liquid dose before use.
Composition: Bispyribac-sodium 10% SC.
Crop fit: Rice: nursery row*. Keep each target with its listed crop.
Before treatment: Check the current crop-specific rate, method, water and harvest directions.
Why Choose This Product? Key Benefits
- 🌾Rice-specific fit: HPM identifies rice and a defined list of grass, sedge and broad-leaved weeds.
- 🌱Post-emergence role: It is intended for susceptible weeds that have already emerged.
- 🌿Systemic movement: The active ingredient moves within treated weeds.
- 🎯Different weed groups: The published list includes Echinochloa grasses, Cyperus sedges and named broad-leaved weeds.
- 🔄Clear resistance group: HRAC 2 identifies ALS inhibition when planning weed control.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | HPM Chemicals & Fertilizers Limited |
| Technical Name | Bispyribac-sodium 10% SC |
| HRAC MoA Code | 2: acetolactate synthase (ALS) inhibitors |
| Chemical Group | Pyrimidinylbenzoate |
| Formulation | SC: suspension concentrate |
| Toxicity Label | Follow the warning panel and protective-equipment instructions on the supplied pack. |
How It Works: Mode of Action
Bispyribac-sodium inhibits acetolactate synthase, an enzyme needed to make certain amino acids in susceptible weeds.
- Weed uptake: The active ingredient is absorbed through foliage and roots.
- Amino-acid production is blocked: ALS inhibition interrupts production of amino acids needed for growth.
- Weed growth is suppressed: Use it after weed emergence only in the rice system and growth stage on the label.
A different brand name does not necessarily mean a different mode of action. Follow the crop label and a suitable resistance-management programme; do not rely repeatedly on the same group alone.
Target Crops & Weeds
HPM identifies these crop-and-target pairings. Check that the current supplied label includes your intended use.
| Crop | Target Weed(s) |
|---|---|
| Rice: nursery row* |
|
*HPM’s table is labelled rice nursery, while its summary mentions direct-seeded rice. These are not interchangeable application systems. Confirm which use is on the current Benister pack; a general non-crop statement does not establish a specific additional use.
Dosage & Application Guide
The public HPM table contains a liquid-dose unit conflict. The product quantity is therefore withheld, while the published water reference is kept separate. Obtain the complete current nursery or field-rice directions before treatment.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop / target | Dose / Acre | Water entry (L)* | Per litre | PHI (Days) |
|---|---|---|---|---|
| Rice nursery* | Confirm liquid rate | 120* | Not specified | Confirm |
*The nursery row states 120 L water without an explicit area basis. This raw reference is not a usable water recommendation until the current pack confirms its area basis and rice establishment system.
The webpage’s harvest wording describes more than 78 days between application and harvest; it does not provide a clear PHI instruction. Do not interpret it as either zero days or a universal 78-day interval.
Confirm crop-stage timing, repeat interval, maximum applications, re-entry, rainfast period and equipment on the supplied label. Do not infer these from a general product description.
How to Apply: Best Practices
- Match the target: Identify the crop and problem and check that the supplied label covers the intended treatment.
- Confirm rice system and weed stage: Follow the current label’s post-emergence directions. Do not transplant nursery instructions to direct-seeded or transplanted field rice.
- Check mixtures separately: No universal tank-mix recommendation is made. Use another product or adjuvant only when the relevant labels permit it.
- Protect people and water: Follow protective-equipment and field-entry precautions, avoid drift and runoff, and observe the crop’s harvest interval.
Frequently Asked Questions
What does Benister contain?Bispyribac-sodium 10% SC, a liquid suspension concentrate.
Does it treat every rice weed?No. HPM gives a specific list of grasses, sedges and broad-leaved weeds; match the weed and crop system to the label.
Why is the liquid rate not shown?HPM’s public table uses a grams heading for this liquid SC. The correct quantity and unit must be checked on the supplied label.
Are nursery and direct-seeded rice directions the same?Do not assume so. The manufacturer mentions both contexts but gives no clear separate programme for each.
Is the harvest interval 78 days?The public wording is not a clear PHI instruction. Confirm the current crop-specific waiting period before treatment.
Safety & Disclaimer
Before you use it: Read the current pack label and leaflet. Use only for the crop, target, rate, application method and waiting periods stated there; this guide is not a substitute for the label.
Wear the protective clothing and equipment specified on the pack. Avoid breathing dust or spray and contact with skin and eyes. Do not eat, drink or smoke while handling. Wash after work.
Keep the product in its original closed container, away from children, animals, food and feed. Prevent spray, spills and washings from reaching water. Follow label disposal instructions; never reuse empty containers.