Resistance management in Europe: a preliminary proposal for the determination of a minimum number of active substances necessary to manage resistance |
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| Authors: | T Rotteveel L N Jorgensen U Heimbach |
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| Institution: | 1. Plant Protection Service, PO Box 9102, Wageningen (NL);2. e‐mail: anton.rotteveel@ec.europa.eu;3. Faculty of Science, Institut of Agroecology – University of Aarhus, Forsogsvej 1, Flakkebjerg, Slagelse, 4200 (DK);4. Julius Kühn Institut (JKI), Federal Research Center for Cultivated Plants, Messeweg 11/12, 38104 Braunschweig (DE) |
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| Abstract: | The evolution of resistance to plant protection products (PPPs) is an increasing management challenge that relates to both an increasing number of species and a limited number of active substances. The number of available active substances (a.s.) has decreased considerably over the past two decades, increasing the gravity of the resistance problem. Managing the threat of resistance is based on a reasoned choice of a.s., their sequence and combination. No quantitative information is available on how many different PPPs are needed for a sustainable control system of a given pest. This paper provides a first expert judgement‐based attempt at estimating the number of different a.s. necessary for sustainable control of a pest in which the evolution of resistance is prevented. |
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