Bentazone Water Stewardship
Updated: April 2019
Environment Agency data shows that Bentazone (the herbicide active substance in Basagran ® SG and other products) is the most frequently detected approved pesticide in UK groundwater and is also increasingly being found in surface water. Due to the link between EU legislation on pesticides and on water, it is possible that the EU approval for bentazone will not be renewed, resulting in the loss of all bentazone products across Europe.
BASF’s Bentazone Water Stewardship Programme is a proactive initiative aimed at encouraging responsible product use. BASF’s advice has been updated for 2017 to also include recommendations for surface water in addition to groundwater High Risk Areas (Drinking Water Groundwater Safeguard Zones for bentazone or nitrates and Groundwater Source Protection Zones 1+2). See the Environment Agency’s website “What’s in Your Backyard” (WIYBY) for details of zones in your area (see link below for guidance on how to use WIYBY).
BASF asks growers and advisors to consider these updated recommendations and to look at WIYBY ahead of product use this spring. The Voluntary Initiative’s Water Protection Advice Sheet (WPAS) for Bentazone has been updated for 2017 to reflect BASF’s recommendations (see link below).