The Pesticides Safety Directorate (PSD) is carrying out a consultation on the survey, which currently collects information every four years for these crops.
It proposes collecting data every year in the case of arable crops, instead of every two years, and every two years rather than four in the case of glasshouse, vegetable, top fruit and soft fruit crops.
Central Science Laboratory carries out the surveys and the work will be re-tendered at the end of the year, said PSD representative Edward Heywood. He added: "With arable crops, top fruit and soft fruit there is a lot of concern because of the human supply chain. In essence, the other crops wouldn't be under as much scrutiny."
The changes aim to meet statistical requirements of the EU Thematic Strategy on pesticides. It is likely the changes will come into effect for the 2010 set of surveys.
- To comment on the consultation, see regulatory update 07/2009 at http://www.pesticides.gov.uk by 27 May.