WHP Data Sources

1. Sources

SprayCast's herbicide catalogue contains 1,480 products across four countries. Product identity is taken from each country's public register. Grazing withholding periods are taken from registered label text where the register or publisher makes it available.

Contains APVMA data licensed under Creative Commons Attribution 3.0 Australia. Other register data is used under each publisher's open-data terms.

2. What each value means

The catalogue is not a complete list of every herbicide registered or sold in any country, and not every withholding period in SprayCast is taken from a product label. Each value is marked with its origin:

• Label-verified (no marker) — taken directly from the registered label.
• Estimated (*) — derived from the active ingredient where no product-specific label value is held. Provided as a guide only. All Great Britain products are estimated because HSE publishes no label text.
• User-entered (†) — entered by the user for a custom product, or entered over a catalogue value. Bluegrass Pastoral Pty Ltd is not responsible for the accuracy of user-entered values.
• No grazing — the registered label prohibits grazing after application; no safe-to-graze date is calculated.
• Unverified — a label is held but carries no usable grazing statement. No withholding period is shown.

3. Your obligations

WHPs may vary by application rate, crop, and regional registration conditions, and labels change over time. The catalogue is refreshed when each register publishes updated data, not on a fixed schedule. Always verify against the current product label before spraying or returning stock to a treated area. SprayCast is a record-keeping and planning tool and does not replace the label or your own compliance obligations. A plain-language summary is on the Features page.