Atrazine Formulations for Importers: WP, SC and Maize Programme Mixtures

Atrazine Formulations for Importers: WP, SC and Maize Programme Mixtures

This guide explains how professional buyers can compare atrazine formulations and mixtures before shortlisting suppliers. It is an educational sourcing resource, not an application recommendation, product label or legal opinion. Product approval, label directions and commercial legality must always be verified for the destination jurisdiction.

Atrazine is a triazine herbicide classified by HRAC in Group 5 as a photosystem II inhibitor, requested mainly for maize, sorghum and sugarcane programmes. Its regulatory position is sharply divided: some jurisdictions prohibited it years ago while others maintain large registered markets, often with water-protection and stewardship conditions attached. Confirm the destination position first — it decides whether the conversation is about atrazine at all.

Straight WP and SC configurations

Averstar lists straight atrazine as Atrazine 48% WP, Atrazine 500g/L SC and the maize-positioned Atrazine 50% / 38% SC.

A WP ships as a powder with dust-control handling requirements and moisture-protective packaging; an SC is a water-based suspension compared on suspensibility, particle-size behaviour and storage guidance. Reconcile weight-percentage and grams-per-litre offers using the density on the specification, and request the safety data sheet for the exact configuration quoted.

Mixtures for maize programmes

Mesotrione Atrazine 55% SC pairs the triazine with an HPPD-inhibitor partner from HRAC Group 27, a combination widely requested in maize weed programmes. As with any mixture, every active ingredient must be acceptable in the destination market, the mixture itself normally needs its own registration, and resistance-management positioning should be reviewed with local advisers using the current HRAC classification.

Water-protection conditions are part of the specification

In markets that keep atrazine registered, approvals frequently carry conditions aimed at protecting groundwater and surface water: rate ceilings, buffer zones, seasonal windows or monitoring obligations. Treat these as part of the commercial evaluation — they shape the label text, the trainable message for the distribution channel and, in some markets, the long-term stability of the registration itself.

Packaging, shipment and sample planning

WP configurations ship in bags or drums with moisture protection inside export cartons; SC offers are quoted in bottles, co-packs, drums and intermediate bulk containers. Ask each supplier to state packaging materials, net contents per unit and the export carton configuration on the quotation before artwork is prepared.

When samples are needed for registration or laboratory verification, agree in writing what the sample represents: the batch, the formulation version and the specification revision. A sample drawn from a pilot batch does not prove that commercial shipments will match, so tie the commercial contract to the certificate of analysis of each shipped batch rather than to the sample alone.

Documents to request before shortlisting

An evidence-led comparison needs the same document set from every candidate supplier: the certificate of analysis, the proposed or registered label, the safety data sheet, the product specification, packaging details and the manufacturing-site identity. Ask for the version and date of each document, and keep the records together so that differences between a quotation, a label and a technical sheet can be resolved before commercial commitments are made.

For adjacent reading, see the herbicide mode-of-action buyer guide and the weed-control product specification guide.

Registration and residue references

Use the FAO pest and pesticide management resources for framework guidance and the Codex pesticide residues database for internationally referenced maximum residue limits, then confirm current national decisions with the destination authority. Nothing in this guide replaces the registered label or local regulatory advice.

Compare Averstar atrazine products

Averstar supplies the atrazine configurations linked above with COA, SDS, label and registration documentation support. Browse the herbicides category to compare actives and formulations, and use the quotation form on any product page to confirm current MOQ, packaging options, documents and delivery terms for your destination market.