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Fungicide activity and performance in wheat

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Performance of

Performance of individual active ingredients can be assessed by comparing dose-response curves. These show average performance measured across a range of sites, seasons and leaf layers. Yellow rust – Protection 50 40 Brown rust – Protection 25 Note: Note: Ignite Ignite and and Imtrex Imtrex lines lines coincide coincide 20 Yellow rust % 30 20 Brown rust % 15 10 10 5 0 0% 25% 50% 75% 100% Percentage of full label rate Fusarium head blight – Protection 40 35 P 0 0% 25% 50% 75% 100% Percentage of full label rate Adexar Ascra Xpro Aviator Xpro Caramba 90 Comet Folicur Ignite Imtrex Keystone Proline Priaxor Vertisan Vertisan + Ignite Fusarium head blight % 30 25 20 15 10 5 0 0% 25% 50% 75% 100% Percentage of full label rate Fungicide resistance Fungicide resistance occurs when a pathogen becomes so insensitive to a fungicide that the fungicide’s field performance is impaired. Resistance management is vital to maintain control and prolong the effectiveness of fungicides. Use fungicides with different modes of action in mixtures and in alternations and ensure that mixing partners are used at doses that give similar efficacy and persistence. Single azole and SDHI products carry considerable resistance risk and should not be used alone. Never exceed the maximum recommended number of applications and follow any additional label guidance on resistance management. Some mildewicides, for example, carry specific advice on alternating or mixing active ingredients. Use Imtrex and Vertisan only in mixture with at least one fungicide with an alternative mode of action that has comparable efficacy against the target pathogen(s).

Active ingredients for wheat disease control Product Active ingredients azoxystrobin bixafen boscalid carbendazim chlorothalonil cyflufenamid cyproconazole cyprodinil difenconazole dimoxystrobin epoxiconazole famoxadone fenpropidin fenpropimorph folpet flupyram fluoxastrobin fluquinconazole flutriafol fluxapyroxad isopyrazam kresoxim-methyl laminarin mancozeb metconazole metrafenone penthiopyrad picoxystrobin prochloraz propiconazole proquinazid prothioconazole pyraclostrobin pyriofenone quinoxyfen spiroxamine tebuconazole thiophanate-methyl triadimenol trifloxystrobin Adexar* X X Agate X X Alto Elite X X Amistar X Amistar Opti X X Arizona X Artemis X X X Asana X X X Ascra Xpro* X X X Attenzo X Aviator 235 Xpro* X X Aylora X X Azaka X Balear 720 X Basoon EC* X Boogie Xpro X X X Bowman X Bravo 500 X Brutus* X X Bumper 250EC X Capalo X X X Caramba X Ceando X X Cercobin Cello X X X Centaur X Ceriax X X X Cherokee X X X Chord X X Cielex X X Cirkon X X Cloister X X Comet 200* X Consul X Corbel X Cortex X Crafter X X Credo X X Cyflamid* X Deacon X Diamant X X X Dithane X Eclipse X X Ennobe X X Enterprise X X Envoy X X Epic X Erase X Fielder X X Firefly 155* X X Flanker X Flexity* X Flyer X Folicur X Fortress X Frelizon X X Furlong X X Galileo X Gemstone X X Guru X X Helix X X Imtrex* X Intellis X * Products used in AHDB Cereals & Oilseeds fungicide performance trials. X

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