Whisper® is the first sulphur product derived from agricultural sources. Biogas is produced using farm waste. This process also generates hydrogen sulphide (H2S). Elemental sulphur is extracted from this gas using bacteria and then made into a ready-to-use liquid vine protection product.
Whisper® is effective against vine powdery mildew. It is approved for Organic Farming. Thanks to its Thiobacter Activ formula, Whisper® is highly resistant to leaching and easy to wash off in the tank or container.