The approval of the pesticide active substance isopyrazam was not supported for renewal in GB and expired on 31 March 2026.
The statutory approvals register has been updated to reflect this change.
The expiry of this approval will impact PPPs containing isopyrazam. Grace periods have been set allowing:
- 6 months for sale and distribution (30 September 2026)
- a further 12 months for storage, disposal and use of existing stocks (30 September 2027)
Withdrawal Notices will be updated on the pesticides register.
The expiry of this approval has no immediate impact on the GB maximum residue levels (GB MRLs) which will remain in force unless HSE decides to take specific regulatory action; no such action is currently planned, but GB MRLs may be reviewed at any time based on a priority of protecting UK consumers.
For MRLs, please see the GB MRL Statutory Register.
Stakeholders should note that pesticides is in scope of the Sanitary and Phytosanitary (SPS) agreement currently being negotiated between the UK and the EU. Once negotiations on the SPS Agreement have concluded, HSE will communicate further on any implications the agreement has for the sector.
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