Advisory Committee on Pesticides Annual Report 2001

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Section F: Other items considered during the year did not prevent the loss of chlorothalonil. Losses, however, were not observed in extracts fortified with chlorothalonil, after prior removal of sulphurcontaining compounds by the use of an alumina column impregnated with silver nitrate. It was therefore tentatively proposed that silver nitrate should be added to frozen onion subsamples before extraction. The ACP had recommended that a further study be conducted into the use of silver nitrate and the use of acetone containing 10N sulphuric acid as used by industry. Several other techniques were also examined, one of which was the addition of orthophosphoric acid pre-milling. The additional study on onions was considered at the January 2001 ACP meeting. The results showed that losses of chlorothalonil during the analysis of onions could be minimised by the addition of 2.2M orthophosphoric acid to the samples before milling. The <strong>Committee</strong> recommended that: ● ● ● the findings of these studies be passed on to the EU rapporteur (Netherlands) for consideration when evaluating the methods of analysis used to analyse crop samples for chlorothalonil and commercial/domestic processing data; the use of orthophosphoric acid in the preparation of subsamples of crops should be routinely adopted, when analysing onions (and other allium crops) for chlorothalonil; and industry should be informed of the findings and recommendations from the study. 77 How a broader approach to the protection of biodiversity may affect ecological risk assessments of plant protection products This report highlighted that the <strong>Advisory</strong> <strong>Committee</strong> on Releases to the Environment (ACRE) considers the risks to biodiversity from genetically modified organisms, which has implications for the ACP. On the basis of this report the ACP agreed to review its approach to wider biodiversity issues as a matter of some urgency. It considered that the aim should be to take account of risks to biodiversity in the regulation of pesticides and that the approach taken should be based on sound science. It was also agreed that the policy and management issues raised by the report should be discussed with the ACRE subgroup. Once a clear way forward was identified it would also be necessary for discussions to take place with relevant stakeholders.
<strong>Advisory</strong> <strong>Committee</strong> on Pesticides Annual Report 2001 Reappraisal of Local Environmental Risk Assessments for Pesticides (LERAPs) for horizontal boom sprayers LERAPs provide a framework for those using agricultural pesticides to take action to protect watercourses appropriate to their own local circumstances and practices. The scheme was developed for use in the arable crop sector and was introduced in 1999. Following a survey commissioned by PSD in the summer of 2000, the scheme was amended in response to feedback and the survey results. In 2001 the scheme guidance was revised and simplified after consulting with industry and other interested parties. In addition, the <strong>Committee</strong> advised that further steps be taken to increase awareness of and compliance with the scheme among farmers and growers to ensure the scheme delivered its aim of environmental protection of watercourses. 78 Revised proposals for a scheme of Local Environmental Risk Assessments for Pesticides (LERAPs) for broadcast air-assisted sprayers LERAPs provide a framework for those using agricultural pesticides to take appropriate action to protect watercourses in the light of their own circumstances and practices. A proposed parallel scheme had been developed for the orchard, hop and soft fruit sector. In July 2000 the <strong>Committee</strong> considered revised proposals for this scheme. Original proposals put to the <strong>Committee</strong> in 1999 had been revised in the light of views received from a public consultation. A second public consultation followed in October 2000 and the inclusion of living windbreaks into the scheme was confirmed by the ACP in the summer of 2001. Following further refinements regarding buffer zones for orchards and hops, a final scheme was agreed in time for implementation for the 2002 growing season. Mutual recognition of Member State product approvals in support of applications for extensions of use (off-label use) of products approved under the Plant Protection Products Regulations 1995 (as amended). Directive 91/414/EEC introduced a requirement for Member States to mutually recognise plant protection product approvals after an active substance has been included on Annex I. The paper considered by the ACP proposed that under specified conditions, approvals for minor uses in the UK could be given on the basis of mutually recognising other Member State approvals, where a product has been provisionally approved, in advance of Annex I listing. Additionally, for outdoor crops, the provisional approval would have to
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Advisory Committee on Pesticides Annual Report 2001

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