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  • Title: French vineyards provide information that opens ways for effective resistance management of Botrytis cinerea (grey mould).
    Author: Walker AS, Micoud A, Rémuson F, Grosman J, Gredt M, Leroux P.
    Journal: Pest Manag Sci; 2013 Jun; 69(6):667-78. PubMed ID: 23576292.
    Abstract:
    Resistance to fungicides is an evolutionary process resulting from the selection of advantageous genotypes in naturally diverse populations. Seven fungicide modes of action are authorised to control grey mould caused by Botrytis cinerea on grapevine in France, and five of them have encountered specific resistance, with variable frequencies in populations and possible consequences for field fungicide efficacy. Moreover, multidrug resistance is caused by fungicide efflux and allows a weak resistance towards six unrelated modes of action. Here, a review is given of the fungicide resistance status of B. cinerea in France, particularly in the vineyards of Champagne, which are the most affected. Recently developed resistance and recent findings concerning the associated resistance mechanisms are focused upon in particular. Finally, antiresistance strategies are presented, and examples of managed resistance are discussed in a more general manner with the aim of extending this knowledge to other crops and countries undergoing similar resistance problems.
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