Arsa - Glufosinate Ammonium 13.5% SL - Crystal
Crystal
Arsa - Glufosinate Ammonium 13.5% SL - Crystal
Product details
Arsa Herbicide by Crystal Crop Protection
Glufosinate ammonium 13.5% SL for the listed weeds in tea.
What it controls: Specified grasses, broadleaf weeds and dayflowers in tea.
When to use it: At the 3–5 leaf stage of the weeds, following the current pack’s method.
What to include: Protection of the tea crop from herbicide contact and the exact pack’s complete directions.
Why Choose This Product? Key Benefits
- 🍵Tea-weed focus: The manufacturer recommendation is specifically for the listed weed problems in tea.
- 🌾Several grass targets: The scope includes cogon grass, torpedo grass, goosegrass, sour paspalum and crabgrass species.
- 🌿Other weed groups included: Buttonweed, billygoat weed and dayflower species are also listed.
- 🌱A clear weed-stage window: The manufacturer specifies 3–5 weed leaves, helping distinguish the intended stage from mature weeds.
- ⚡Fast-action profile: Crystal describes fast action against susceptible weeds, without a guaranteed number of hours or days.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Crystal Crop Protection Limited |
| Technical Name | Glufosinate ammonium 13.5% SL |
| HRAC MoA Code | Group 10 |
| Chemical Group | Phosphinic acid |
| Formulation | SL: soluble concentrate |
| Toxicity Label | Follow the supplied pack’s warning panel and protective-equipment directions. |
How It Works: Mode of Action
Arsa is non-selective: it can damage wanted plants as well as weeds. Its listing for tea does not mean it is safe to spray onto tea leaves or other green crop parts.
- The active ingredient acts on the weed: Glufosinate ammonium affects susceptible treated plant tissue.
- A key growth process is blocked: It blocks an enzyme involved in the plant’s normal handling of nitrogen.
- Weed tissue is damaged: Disruption of that process interferes with normal growth and leads to damage in susceptible weeds.
Use suitable alternatives with different mode-of-action groups as part of crop-specific resistance management. A different brand name is not necessarily a different mode of action.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Tea |
Grasses
Broadleaf weeds and dayflowers
|
Dosage & Application Guide
Crystal’s published Arsa rate and the separate CIBRC formulation reference are distinguished below. They are not two treatments to combine. Confirm the complete current Arsa pack programme before applying either reference.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Tea: manufacturer rate | 1,000–1,320 | See note* | See note* | See note* |
| Tea: formulation reference | Approx. 1,011.7–1,335.5 2.5–3.3 L/ha |
Approx. 151.8–202.3 375–500 L/ha |
See note* | 15 |
The formulation reference covers the six individually named weeds above, plus large crabgrass (Digitaria sanguinalis) and Bengal dayflower (Commelina benghalensis). Do not extend its water or harvest interval to every species of crabgrass or dayflower.
Acre figures are approximate conversions; the original hectare quantities remain shown. Do not increase the manufacturer’s stated range using the higher generic reference.
*Confirm current-pack application route, nozzle, water, rain-free interval, harvest and re-entry directions before use. No per-litre dose is supplied here. The 15-day PHI is a generic formulation reference for the specified tea weeds, not a substitute for current Arsa pack directions.
How to Apply: Best Practices
- Check crop and weed identity: This description covers tea and the manufacturer-listed weeds. It is not a cotton or non-crop-area programme.
- Use the stated weed stage: Crystal specifies 3–5 leaves on the weed. Do not count tea leaves or assume that a mature weed uses the same treatment.
- Protect the tea crop: Because the herbicide is non-selective, prevent contact with tea foliage and other wanted green plants. Follow the exact pack’s permitted application method and safeguards.
- Complete the application programme: Confirm matching product quantity, water, equipment and mixing instructions on the current pack. The published rate alone is not a complete recipe.
- Avoid unapproved mixtures: Do not add another herbicide, fertilizer or adjuvant unless permitted for the exact combination. A jar test cannot establish crop safety or approval.
- Plan plucking and re-entry: Check the current pack’s interval before tea plucking, re-entry instructions and repeat-application limits. Do not treat the generic 15-day figure as a complete brand programme.
Frequently Asked Questions
Is Arsa safe to spray directly onto tea leaves?Do not assume so. It is non-selective and can damage wanted green plants. Follow the current pack’s application method and protect the tea foliage from contact.
Which weeds and crop are included?Tea is the crop. The manufacturer lists the grasses, buttonweed, billygoat weed and dayflower species shown above; the generic numerical reference has narrower species limits for crabgrass and dayflower.
What does 3–5 leaf stage mean?It means the weeds have three to five leaves. It is not a tea-leaf count or a fixed number of days after a field operation.
Why are the manufacturer and formulation rates separate?The manufacturer publishes 1,000–1,320 ml/acre. The other range is an approximate conversion of the generic 2.5–3.3 L/ha record. Do not combine them or treat the higher generic rate as permission to increase the brand rate.
Can I pluck tea 15 days after treatment?Fifteen days is the qualified formulation reference for its listed tea weeds. Confirm the current Arsa pack’s harvest interval and complete programme before applying, and obey its separate re-entry restrictions.
Safety & Disclaimer
Wear the protective clothing and equipment specified on the pack. Avoid skin and eye contact and breathing spray. Do not eat, drink or smoke while handling. Wash exposed skin and contaminated clothing after work.
Keep the original container closed in secure storage away from children, animals, food and feed. Prevent product, spray and equipment washings from entering water bodies. Never reuse empty pesticide containers.
Read and follow the supplied product label and accompanying leaflet. Use only for its stated crop, target, application conditions, dose, waiting periods and precautions.