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HSE is the regulatory authority in the UK for pesticide products. Pesticides can be split into two categories, those used in agriculture, horticultural and home garden and those used for public hygiene.

Agricultural, horticultural and home garden pesticides

CRD Pesticides Website.  Issues with the previous web host have meant that the technical problem that first occurred on October 26th cannot be resolved. As a result, all pesticides guidance will be hosted from this page in future. Whilst the process of re-hosting the guidance takes place, all information previously held on can be accessed via the links below.

Please note: The databases giving details of authorisations and related information can be reached from the links given below under ‘Pesticides Registration Databases’.

CRD Pesticides website

A complete copy of the CRD Pesticides website taken on October 23rd can be accessed below:

Please note:

  • You must use the links below under ‘Pesticide Registration Databases’ to access database information.
  • The search facility within the copy of the website does not work as normal, however, guidance on using the National Archives advanced search facility is available.

Pesticide Registration Databases

You must use the links below to access the databases since the copy of the website above links only to a copy of these search pages.

The Pesticides Register Database
This application allows you to search for information on Plant Protection Products with On-Label Authorisations.

Garden Pesticides Search (Amateur Uses)
Search for Plant/Area, Product Name, Marketing Company, Active Substance, MAPP No. or Field of Use for products authorised in amateur situations.

Published "On-label" e-@pprovals documents Available in Word 97 format.

Adjuvant Information Database
Search by Adjuvant Name, Adjuvant Number, Applicant, Effective Adjuvant Component, Active, Plant Protection Product and Crop.

Extension of Authorisation for minor use in the UK (formerly known as 'SOLA s')
Search for Extension of Authorisation for minor use.

Products under Phased Withdrawal and Withdrawn Products
Search by Year of Expiry and Marketing Company.

Crop Conversion - Old and New Names
Find the old (historical) and new (hierarchy) name for a crop/situation.

MRLs Databases
View the latest Maximum Residue Level (MRL) information (UK/EC) and Codex Alimentarius Commission (CODEX).

Active Ingredients in products subject to a buffer zone restriction
Displays lists of active ingredients (chemicals) and combinations of active ingredients – found in pesticide products which are subject to a ‘no spray (buffer) zone’ restriction.

Officially recognised LERAP Low Drift Rating Spray Equipment

Further help & guidance

If the information you need is not available, please contact the Defra Helpline who are the first point of contact for pesticide enquiries.

New guidance 2016

Defra Helpline:

Telephone Number: 08459 33 55 77 (International: +44 20 7238 6951)
Email: pesticides&

Updated 2016-04-01