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Averstar Chemical Editorial Team Updated August 30, 2026

Lambda-Cyhalothrin Formulations for Importers: EC, EW and WP Compared

Lambda-Cyhalothrin Formulations for Importers: EC, EW and WP Compared

Lambda-Cyhalothrin Formulations for Importers: EC, EW and WP Compared

This guide explains how professional buyers can compare lambda-cyhalothrin formulations 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.

Lambda-cyhalothrin is a pyrethroid insecticide classified by IRAC in Group 3A as a sodium channel modulator. It acts by contact and ingestion and is requested across agricultural and public-health segments, which makes it one of the most quoted actives in the category — and one where formulation details decide whether two offers are actually comparable.

Emulsifiable concentrates and the EW alternative

Averstar lists lambda-cyhalothrin EC configurations at several loadings, including Lambda Cyhalothrin 25g/L EC, Lambda Cyhalothrin 5% EC and the multi-strength Lambda Cyhalothrin 2.5% / 5% / 10% EC, alongside Lambda Cyhalothrin 28g/L EW.

EC products carry the active in an organic solvent system, so ask which solvent is used and whether it is acceptable under destination-market chemical rules. An EW (emulsion, oil in water) replaces part of the solvent load with water, which changes flash-point, packaging and transport-classification questions — request the SDS for both and compare the hazard sections directly.

Wettable powders and high-load dry supply

Dry configurations include Lambda Cyhalothrin 10% WP and the high-load Lambda Cyhalothrin 25% WP. Powders avoid solvent questions entirely and simplify some logistics, in exchange for dust-control handling requirements and stricter moisture-protective packaging.

Public-health and mixture configurations

The same active is also quoted for vector-control programmes: Lambda-cyhalothrin 2.5% EC Public Health Pest Control is listed separately because public-health procurement usually runs on different registration schemes, specifications and tender documentation than agricultural supply. For agriculture, the ready mixture Lambda-Cyhalothrin + Acetamiprid 15g/L / 20g/L EC pairs the pyrethroid with an IRAC Group 4A partner; both actives and the mixture itself must be acceptable in the destination market.

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 the general framework, see our insecticide mode-of-action sourcing guide and the guide to choosing insecticide formulations for export markets.

Packaging, shipment and sample planning

EC and EW offers are normally quoted in drums, 20 L or smaller co-pack bottles and intermediate bulk containers, and the solvent system can change the dangerous-goods classification that applies to sea or air shipment. Ask each supplier to state the packaging materials, the net contents per unit, the export carton configuration and the applicable transport classification on the quotation before booking freight.

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. Tie the commercial contract to the certificate of analysis of each shipped batch rather than to the sample alone, and keep retained samples from incoming shipments so that any later dispute can be resolved against evidence.

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 lambda-cyhalothrin products

Averstar supplies the lambda-cyhalothrin configurations linked above with COA, SDS, label and registration documentation support. Browse the insecticides category to compare concentrations 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.

Frequently asked questions

What is the practical difference between an EC and an EW offer?

The solvent system. An EW replaces part of the organic solvent with water, which changes flash-point, packaging and transport-classification questions. Compare the SDS hazard sections of both offers directly.

Can agricultural and public-health lambda-cyhalothrin be sourced the same way?

Usually not. Public-health procurement typically runs on separate registration schemes, specifications and tender documentation. Confirm which scheme applies before requesting quotations.

Does this guide recommend application rates or crops?

No. It is a pre-screening resource for sourcing conversations. Use directions, approved crops and rates are governed by the registered label in the destination market.

Authoritative references

  1. IRAC Mode of Action Classification - Insecticide Resistance Action Committee (IRAC)
  2. Pest and Pesticide Management - Food and Agriculture Organization of the United Nations (FAO)
  3. Codex Pesticides Residues Database - Codex Alimentarius Commission (FAO/WHO)