Paraquat 20% SL CAS 1910-42-5

Mode of Action — Contact, Fast Desiccation (HRAC 22)

Paraquat 20% SL is a non-selective contact herbicide. At the leaf surface it intercepts electron flow at Photosystem I, generating reactive oxygen species that quickly rupture cell membranes. You see rapid desiccation and browning of green tissue where spray physically reaches. Because movement inside plants is minimal, control is limited to contacted foliage; underground organs and shielded leaves may persist according to the approved label. Activity is typically faster on young, actively growing weeds with adequate light and suitable environmental conditions. In soil, paraquat binds strongly to particles and becomes biologically inactive, so it does not provide residual pre-emergence control; positioning is for burndown/vegetation suppression within the uses permitted on your local label. As a Group 22 herbicide, sequence and rotate with other HRAC groups per label guidance to support stewardship. All application sites, intervals, and precautions must follow the registered product label and local regulations; do not rely on generalized directions.

Target Weeds & Use Scenarios

Target Weeds (label-dependent)

• Annual broadleaf and grass weeds: fast contact burndown at seedling to early growth stages.

• Perennial species: top growth suppression only; underground organs may re-sprout.

• Problem contexts: escapes ahead of planting, inter-row flushes in orchards/vineyards, vegetation on non-crop sites where permitted.

Use Scenarios (follow local approved label)

• Pre-plant / Pre-emergence burndown: clear existing green cover before crop establishment; no soil residual expected.

• Orchard & vineyard row middles: inter-row vegetation knockdown to maintain traffic lanes and reduce competition; avoid contact with crop green tissue.

• Fallow / Stubble management: quick clean-down between cycles to keep fields workable and reduce seed set.

• Non-crop areas: roadside, industrial yards, fence lines and similar sites where registered to maintain bare or low-growth surfaces.

• Directed or shielded applications: only if explicitly permitted; prevent spray onto desirable plants and bark/green tissue.

Practical notes

• Contact herbicide: performance depends on coverage and light; expect rapid desiccation of sprayed foliage.

• Program fit: sequence with other HRAC groups as labels allow; do not rely on soil activity for follow-up control.

• Compliance: crop/weed claims, sites, intervals and any equipment restrictions vary by country. Always use as per the approved product label.

Program Fit — Where Paraquat 20% SL Adds Value

You deploy Paraquat 20% SL (CAS 1910-42-5) when you need rapid burndown of existing green cover with minimal soil carryover, strictly within registered uses. In row-crop systems, it fits pre-plant / pre-emergence windows to start clean and protect stand establishment. In orchards and vineyards, it supports row-middle vegetation knockdown to maintain traffic lanes and reduce competition while you protect trunks and green tissue from contact. In fallow or non-crop areas where permitted, it restores operational access quickly after rainfall flushes. Because paraquat is contact-only and binds to soil, it is not a residual soil tool; you should integrate it with mechanical practices or alternative HRAC groups for sustained control across the season. Decisions should follow scouting and weed-size objectives—young, actively growing weeds under good light deliver the most predictable burndown. Align applications with logistics: equipment availability, labor windows, and downwind buffers. Always follow your approved label for sites, intervals, and restrictions.

Selectivity & Safety — Professional Use, Contact Herbicide

Selectivity. Paraquat is non-selective: any green plant tissue contacted may be injured. You must avoid spray drift and direct contact with crops, ornamentals, or desirable groundcover. Because translocation is limited, underground organs of perennials can re-sprout; plan follow-up tactics accordingly, as allowed by your local label.
Worker safety. Paraquat products carry strict handling and use restrictions in many countries. Only trained and authorized personnel should mix/load or apply, using PPE and engineering controls required on the approved label. Observe REI and any re-entry conditions; never decant to unlabelled containers.
Environmental care. Respect buffer zones near water, manage droplet size and boom height to reduce drift, and avoid applications before heavy rain or irrigation run-off events. Dispose of rinsates and containers per local regulations; never discharge into drains or natural waters. All statements here are general; your local registered label governs sites, precautions, and restrictions.

Packaging & OEM — Market-Ready Configurations

You can specify HDPE bottles (with induction seal and tamper evidence) for retail channels or HDPE drums / IBCs for bulk programs, sized to local label allowances. Secondary packaging uses export-grade cartons with liner protection; palletization is designed for container utilization and handling safety. Private-label deliverables include multilingual artwork, barcode/serialization, and QR links to digital leaflets as permitted. We align color systems, brand assets, and regulatory panels while preserving mandatory phrases, hazard statements, and first-aid language from your approved label. Master data—SKU codes, inner/outer dimensions, net/gross weights—ships with your artworks to streamline ERP onboarding. If your market requires child-resistant closures or specific transport marks, these can be incorporated at dieline sign-off. Final pack sizes, icons, and warning statements follow your local registration.

QC & Documents — What You Receive with Each Lot

Every lot of Paraquat 20% SL is released against a registered specification and accompanied by:

• COA: active content, appearance, pH, density, emulsion/solution behavior, and other agreed parameters.

• SDS: current hazard classification, handling/storage, exposure controls, transport information.

• TDS: product positioning, formulation overview, compatibility notes (no use rates).
  Manufacturing follows an ISO-managed quality system with identity-tested inputs and lot-level traceability. Stability programs (accelerated and real-time) support shelf-life statements and packaging compatibility claims; retention samples are archived per lot for audit or investigation. On receipt, your QA can verify seal integrity, lot coding, label correctness, and COA conformance before release to operations.

Regulatory & Stewardship — Use Only as Registered

Paraquat is tightly regulated in many jurisdictions. Your responsibilities include confirming that the product, pack size, label language, use sites, intervals, and hazard statements match your local registration and customer channel. Only trained, authorized applicators should operate under valid licenses where required. Incorporate paraquat within Integrated Weed Management: rotate HRAC groups, avoid repeated reliance on a single mode of action, and use mechanical or cultural practices to reduce seedbanks. Maintain records (lot codes, volumes, fields, dates) for audits and incident response. Never make label claims not present on the approved document, and never provide operational instructions beyond what your registered label allows. When exporting produce, align spray schedules with destination-market MRLs and buyer cut-off dates.

FAQ — Paraquat 20% SL (CAS 1910-42-5)

Q1. What is the primary positioning of Paraquat 20% SL?
A non-selective contact burndown herbicide for rapid desiccation of green tissue where registered; no soil residual expected.

Q2. Which sites and crops are allowed?
Sites, crops, and intervals are label-dependent and vary by country. Use only as specified on your local approved label.

Q3. Will it control perennial weeds?
It suppresses top growth where spray contacts the foliage; underground organs may re-sprout. Plan follow-ups per label.

Q4. How should I think about stewardship?
Rotate HRAC groups, integrate mechanical/cultural practices, and base decisions on scouting. Avoid repeated reliance on one MoA.

Q5. What documents accompany shipments?
Each lot ships with COA, SDS, and TDS; retention samples are archived, and full lot traceability is maintained.

Q6. Can I order private label?
Yes. We support multilingual labels, custom pack sizes (subject to registration), and serialization/QR elements as permitted.

Q7. Are there specific restrictions or training needs?
Many markets impose strict restrictions and training/licensing requirements. Only trained personnel may handle/apply, per local law and label.

Next Steps for Procurement

Request a specification pack for Paraquat 20% SL (CAS 1910-42-5) including COA/SDS/TDS templates, stability summaries, and label/carton mockups configured to your market. Share your target sites/crops, preferred pack sizes, label languages, and route-to-market. We will confirm MOQ, lead time, palletization, and artwork timelines in one proposal. All claims and packaging elements will be aligned to your approved local label and regulations before print release.