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The 'Insecticide Resistance Action Committee' (ZRAC) is a consultative body to GIFAP on all technicallscientific matters relating to insecticidelacaricide resistance. IRAC coordinates industrial efforts to prolong the life of insect control agents, and fosters working relationships with non-industrial research workers engaged in solving resistance problems. The activities of I RAC indicate that industry ( I ) is concerned about resistance reducing the benefit1 cost ratio of valuable products, (2) is fully aware of existing and potential resistance problems in all areas where insecticides are being used, (3) plans to improve resistance monitoring in major croplpests systems suffering @om or being threatened by resistance in the field, and (4) is prepared to cooperate with external research institutions on various practical and conceptual aspects.

: This paper reviews the impact of resistance to fungicides and insecticides/acaricides on the way crop protection is practised. It is now clear that resistance can develop to virtually any crop-protection product, in any pest, fungal pathogen or even weed. As a limiting factor in crop protection, it is a fact of life. A positive side-e †ect is the precision with which products are used today, with increasing implementation of Integrated Pest Management (IPM) programmes. This is a vital step towards sustainability. This paper describes : past experiences ; current status of resistance ; how resistance management inÑuences current crop protection practices ; regulatory aspects ; and the outlook for the future. It concludes that EU regulations on resistance management must be simple and workable. Chemicals will continue to have a central role in optimising yields from the worldÏs crops, as new tools, including biotechnology, become available for crop protection and resistance management. The cropprotection industryÏs innovations and product stewardship programmes will contribute to sustainable agriculture. This will provide continued beneÐts to users, the environment and society.

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