Azoxystrobin + Difenoconazole SC 180/120 vs 200/125

Two quotes for azoxystrobin + difenoconazole SC can look similar until you compare the individual active ingredients. The 180/120 formulation declares 180 g/L azoxystrobin and 120 g/L difenoconazole. The 200/125 formulation declares 200 g/L and 125 g/L, respectively. Both are suspension concentrates, but their active ingredient ratios differ. For importers and distributors, that difference matters when an offer must match a product registration, a tender or an existing purchasing specification. Averstar 180/120 SC listing · Averstar 200/125 SC listing

Quick answer. Compare each concentration separately and confirm the exact formulation against the destination-market label. The azoxystrobin-to-difenoconazole ratio is 1.50 in the 180/120 SC and 1.60 in the 200/125 SC. Record both FRAC groups, 11 and 3, when reviewing the product's place in a disease-management programme.

Compare the individual loadings

• Azoxystrobin: 180/120 g/L SC — 180 g/L. 200/125 g/L SC — 200 g/L.
• Difenoconazole: 180/120 g/L SC — 120 g/L. 200/125 g/L SC — 125 g/L.
• Sum of the two declared actives: 180/120 g/L SC — 300 g/L. 200/125 g/L SC — 325 g/L.
• Azoxystrobin-to-difenoconazole mass ratio: 180/120 g/L SC — 1.50. 200/125 g/L SC — 1.60.

At the same net volume of 100 L, the first configuration contains a nominal 18 kg of azoxystrobin and 12 kg of difenoconazole. The second contains a nominal 20 kg and 12.5 kg. These figures are calculated from catalogue declarations and illustrate commercial stock quantities. The change adds 2 kg of one active and 0.5 kg of the other per 100 L, so a single multiplier cannot make both individual loadings match.

If an order specifies 180/120 g/L and a supplier offers 200/125 g/L, ask for a separate quotation line and an updated technical review. Keep the identity and unit beside each value in the purchase order. A shorthand description such as “300 SC” hides the split between the two ingredients and makes it harder to catch a substitution.

Some suppliers may report assay values in g/kg or percent by mass. Ask for the formulation density and the reference temperature before reconciling those values with a g/L specification. Keep the original results and the conversion in the purchase file so a later batch review can distinguish a unit difference from an actual content discrepancy.

Check the crop and disease against the exact label

Start with the crop, identified disease and destination country. Obtain the approved label for the proposed formulation and locate the corresponding crop-and-disease entry. Record the registration number, holder and label version. Where the label distinguishes between control and suppression, preserve that wording when preparing a product brief or translating sales material.

The Ontario Crop Protection Hub entry for Quadris Top illustrates the level of detail to request. It names both active ingredients, identifies Groups 3 and 11 and links to the Canadian registration record. It also lists crop-specific restrictions. Use that entry as an example of how to read a product record, and obtain the destination-market label for the actual product being quoted. Ontario Crop Protection Hub

Record both FRAC groups in the product portfolio

The Fungicide Resistance Action Committee assigns azoxystrobin to Group 11, the quinone outside inhibitors (QoIs), and difenoconazole to Group 3, the demethylation inhibitors (DMIs). For resistance management, FRAC's QoI guidance asks that a partner have a different mode of action and be effective on its own against the target disease. The two group numbers identify the modes of action. Evidence for the particular disease and programme determines whether the combination is a suitable choice. FRAC Code List 2026 · FRAC QoI guidance

For example, a portfolio may contain a straight Group 11 product and an 11 + 3 premix. Both entries still contain Group 11, even when the brand names differ. Show both groups on the internal product sheet and ask the local crop adviser to review the proposed programme against the applicable labels and crop-specific guidance. Averstar's fungicide resistance information guide

Reconcile the quote, specification and batch certificate

Ask for the specification for the exact SC version and a representative certificate of analysis (COA). The specification defines the agreed acceptance criteria. The COA should identify the batch, the results for each active ingredient and the applicable limits and methods. For a suspension concentrate, confirm the physical quality checks your technical team requires, such as suspensibility, wet sieve and redispersibility, and record the agreed methods and limits in the specification. Averstar's suspension concentrate quality guide

Use this checklist before comparing commercial terms.

• Market and use — destination country, crop, target disease and approval reference.
• Composition — both active ingredients in g/L, written by name on every document.
• Quality — specification revision, batch COA, sample identity and agreed physical tests.
• Pack and terms — net litres per unit, closure, case quantity, delivery basis and quoted volume.
• Change control — written review if the formulation, source, label or pack changes.

When requesting an azoxystrobin + difenoconazole SC quotation, provide the required concentration pair, intended market, pack size and estimated volume. Include the exact documents the local technical team needs so they can be confirmed before an order is placed. Contact Averstar