The use of ferric phosphate for controlling slugs has increased in recent years. Use is likely to increase further as metaldehyde will no longer be permitted for outdoor use after 30 June 2020.
Ferric phosphate is authorised for use as a pesticide and the risk assessment carried out demonstrates that it will not harm people or carry unacceptable risks to the environment. In particular, it does not carry the risks to birds and mammals that have led to the decision to remove the authorisation of metaldehyde. The assessment also shows that ferric phosphate is effective in controlling slugs.