Pyraclostrobin Formulations for Importers: SC, EC and Boscalid WG Compared

Pyraclostrobin formulations should be compared by finished-product identity, not by the active ingredient name alone. Buyers need to distinguish straight SC and EC offers from boscalid mixtures, verify concentration basis and physical-quality data, and confirm how the destination registration and resistance-management label apply. This guide maps those checks to Averstar’s listed configurations.

Buyer summary: separate straight pyraclostrobin from co-formulations, normalize the concentration basis, then compare quality tests, registration scope, residue obligations, packaging and batch documents.

Pyraclostrobin formulations in the current range

Averstar lists Pyraclostrobin 25% SC and Pyraclostrobin 250g/L EC as straight-active liquid formulations. It also lists Boscalid + Pyraclostrobin 25.2% / 12.8% WG, a dry co-formulation. These three configurations have different physical specifications and registration identities even when a buyer’s programme treats them as related sourcing options.

SC, EC and WG require different evidence

An SC suspends solid particles in a liquid phase, so suspensibility, particle-size behaviour, pourability, re-dispersion and storage stability matter. An EC is a solution designed to emulsify after dilution, so emulsion stability, water content, acidity or alkalinity where specified, flash-point information and storage behaviour become relevant. A WG must wet, disintegrate and disperse consistently while controlling dust and attrition.

A 25% declaration and 250g/L declaration should not be treated as identical until the supplier states the basis and provides density for the exact formulation. The boscalid mixture requires a two-active comparison: calculate and review each active separately, then confirm that the finished mixture and proposed label are acceptable in the destination market.

FRAC Group 11 affects label and stewardship review

The Fungicide Resistance Action Committee places pyraclostrobin among the quinone outside inhibitor fungicides in FRAC Code 11. FRAC identifies cross-resistance within Code 11 and describes the group as high resistance risk. Procurement teams should confirm that the destination label and technical support use current local resistance-management language; they should not turn a classification into an unregistered spray recommendation.

The boscalid and pyraclostrobin WG combines active ingredients from different FRAC groups, but the mixture still needs a complete destination review. Confirm the approved crops and diseases, maximum applications, residue limits, pre-harvest intervals and any market-specific restrictions from the registered label and competent authorities.

Quality and document checklist

A comparable quotation needs a comparable document set. Ask every shortlisted supplier for the proposed specification, a recent certificate of analysis, the safety data sheet, the destination or reference label, packaging details, manufacturing-site identity and the version date of each document. The FAO/WHO pesticide specifications framework explains why a specification can serve as a quality reference in trade, but a published FAO/WHO specification is not a substitute for the specification and registration of the product being purchased.

• Product specification with test methods, limits and revision date.
• Recent batch certificate of analysis tied to the same formulation and manufacturing site.
• Safety data sheet and proposed label for the destination market.
• Primary pack, closure, induction seal, carton configuration and pallet plan.
• Registration-support documents and a written list of items that are available, pending or excluded.

Add formulation-specific commercial-batch results. For SC, request data on suspensibility, particle behaviour and re-dispersion after storage. For EC, request emulsion stability and the safety properties relevant to transport and storage. For WG, request wetting, disintegration, suspensibility, dust or attrition and moisture-related stability. If the supplier offers more than one manufacturing site, keep each site’s evidence separate.

When comparing suppliers, record the specification revision, test method, batch number, manufacture date and laboratory responsible for each result. This traceability prevents a strong development sample from being mistaken for evidence about routine commercial production.

Residue and market-entry checks

Residue acceptance depends on the crop, use pattern and destination market. The Codex pesticide residues database is an internationally referenced research point, but national or regional limits and import tolerances may differ. Buyers serving export-oriented growers should also check the standards of the produce destination. Record which authority and database version supported the commercial decision.

Packaging, samples and quotation comparison

SC and EC products normally use compatible sealed liquid packaging, while WG uses moisture-resistant bags, bottles or drums. Confirm net contents, closure, seal, carton count and pallet plan. The EC and SC may need different packaging compatibility and transport documentation. Private-label artwork should begin only after the product identity, registration route and pack material are fixed.

When a sample is requested, record the batch number, formulation version and specification revision that the sample represents. A laboratory or pilot sample does not prove that later commercial shipments will match it. Put the agreed specification in the contract, require a batch-specific certificate of analysis and define the procedure for retained samples and discrepancy handling before the first shipment.

RFQ checklist for pyraclostrobin supply

• Straight pyraclostrobin or boscalid mixture, exact loading and concentration basis.
• SC, EC or WG specification with formulation-specific tests and recent batch results.
• Destination registration status, label scope, residue references and resistance wording.
• Pack material, closure, carton, pallet, shipping classification and storage limits.
• Quantity, Incoterm, port, documentation set and timing for samples or artwork.

Choose the pyraclostrobin product that the market can support

A useful comparison shows which exact product can be registered, documented, packaged and supplied consistently. Use the linked product pages to identify the required configuration and submit one evidence checklist to each candidate supplier. For adjacent reading, see the fungicide formulation questions guide and the fungicide resistance information guide.

This article is a sourcing and document-review guide. It does not recommend crops, pests, application rates, tank mixes, pre-harvest intervals or worker-protection instructions. Those directions must come from the current registered label and competent advisers in the destination market.