How do I calculate product amount for a tank mix?

Multiply the label rate (product per acre) by the number of acres one tank load will cover. Acres per tank = tank volume (gallons) / spray volume per acre (gallons/acre). Then multiply: product needed = label rate x acres per tank. Always verify against the product label.

What is spray volume per acre?

Spray volume per acre is the total gallons of finished spray mix applied to one acre. For vineyard airblast sprayers, this typically ranges from 30 to 200 gallons per acre depending on canopy size, equipment, and label requirements. Check the product label for minimum and maximum spray volumes.

Can I mix multiple products in one tank?

Many products can be tank-mixed, but you must check each product label for compatibility restrictions. Some common incompatibilities include certain sulfur products with oil-based products, or specific fungicide-insecticide combinations. When in doubt, perform a jar test first and consult your PCA.

What units should I use for the label rate?

Use whatever units are specified on the product label. Common units include ounces per acre (oz/A), pounds per acre (lb/A), pints per acre (pt/A), or quarts per acre (qt/A). This calculator supports all common rate units. Always match the unit to what the label specifies for your crop.

Tank Mix Calculator

The Tank Mix Calculator determines the precise amount of each product needed for your spray tank. Enter the product label rate per acre, total area to be sprayed, and your tank volume. The calculator computes the exact amount of product to add per tank load using the formula: product_amount = (label_rate x acres_per_tank_load). It accounts for spray volume and helps prevent over- or under-application.

Spray Parameters

Tank Volume (gallons)

Spray Volume (gal/acre)

Total Acres to Treat

Products

Product 1 Name

Rate

Unit

Important Safety Disclaimer

This tool is for informational and planning purposes only. Always read and follow the complete product label before any pesticide application. The label is a legal document and takes precedence over any calculator output. Consult a licensed Pest Control Advisor (PCA) for site-specific recommendations. VitiScribe is not responsible for decisions made based on this tool.

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