Fungicide activity and performance in wheat

Transcription

1 FACTSHEET Fungicide activity and performance in wheat Table 1. Fungicide activity against major diseases Activity rating Chemical group Active ingredient Eyespot Mildew Septoria tritici Yellow rust Brown rust Ear blight # Amidoine cyflufenamid Anilinopyrimidine cyprodinil Benzophenone metrafenone Chloronitrile chlorothalonil *** Dithiocarbamate mancozeb *** Imidazole prochloraz (poraz) MBC thiophanate-methyl Morpholine fenpropidin fenpropimorph Phthalimides folpet *** Quinolene quinoyfen Quinazolinone proquinazid penthyopyrad ** SDHIs fluapyroad ** benzovindiflupyr ** boscalid + epoiconazole isopyrazam + epoiconazole fluapyroad + epoiconazole fluapyroad + metconazole fluapyroad + pyraclostrobin SDHI + other $ biafen biafen + fluopyram penthyopyrad + chlorothalonil benzovindiflupyr Spiroketalamine spiroamine azoystrobin Strobilurin (QoI) picoystrobin pyraclostrobin trifloystrobin Strobilurin dimoystrobin + epoiconazole mitures $ fluoastrobin cyproconazole difenoconazole epoiconazole Triazole *** flutriafol metconazole propiconazole $ Different products may contain different loadings and formulations which may impact on control level. s tested in fungicide performance trials are indicated in the active ingredients table (Table 3). ** Significant resistance risk. Always use SDHI fungicides in miture with at least one fungicide from an alternative mode of action group which has efficacy against the target pathogen(s). Control level 5 = Highest 1 = Lowest - = Insufficient data but may have some activity: check label *** Key products may have significant differences between performance in protectant and eradicant situations, scores shown are for protectant situations. # Ear blight caused by Fusarium culmorum or Fusarium graminearum. Performance against Microdochium species may differ.

2 Choosing fungicides Fungicides should be matched to the primary disease risk, which depends mainly on variety, sowing date, location and local weather. Mitures and alternations of fungicides with different modes of action, from different fungicide groups, are often most effective and reduce the likelihood that fungicide resistance will develop in pathogens. Resistance poses a significant threat to the on-going performance of fungicides and resistance management must be taken into account when planning fungicide programmes. Fungicides are tested by AHDB Cereals & Oilseeds in specific performance trials and in other research projects targeting specific diseases. Performance ratings are indicative and are dependent on dose and timing. Fungicide dose-response curves Fungicides are rigorously tested in AHDB Cereals & Oilseeds-funded trials. Each year, a single spray is applied at a range of doses on varieties that are very Table 2. Seed treatment options susceptible to each major disease and at sites where disease pressure is high. Disease levels are observed a few weeks later. Protection and eradication Protection curves show the activity of fungicides when they are applied soon after the emergence of a leaf layer, before much infection has occurred. Eradication curves indicate fungicidal activity after infection has occurred but before symptoms become visible. Performance of products on each leaf layer and at each site was classified as protectant or eradicant based on timing of leaf emergence relative to spray application. 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. Seed-bourne diseases Other diseases Pests Active ingredient Microdochium seedling blight Microdochium specles Fusarium seedling blights Fusarium graminearum/culmorum Septoria seedling blight Phaeosphaeria nodorum carboin, thiram Anchor Ar fludioonil, tefluthrin fludioonil difenconazole, fludioonil difenconazole, fludioonil Austral Plus Sy Beret Gold Sy Celest Etra Sy Difend Etra Cs Bs = BASF, By = Bayer, Ar = Arysta Cs = Certis, Sy = Syngenta Loose smut Ustilago nuda f. sp. tritici Bunt Tilletia caries label recommendation, control may only be partial, please refer to product label Note: Last use of Rancona imix will be February 219 Take-all Gaeumannomyces graminis var tritici Blue mold Penicillium species silthiofam Latitude Cs ipconazole ipconazole, imazalil clothianidin,, sedaane, fludioonil Rancona 15ME Ar Rancona imix Ar Redigo Deter By Redigo Pro By Vibrance Duo Sy cypermethrin Signal Ar Yellow rust Septoria tritici Brown rust Aphids (BYDV vectors) Wireworm Slugs Wheat bulb fly

3 % disease % disease % 25% 5% 75% % Figure 1. Septoria protection % 25% 5% 75% % Figure 4. Brown rust % disease 15 % disease % 25% 5% 75% % Figure 2. Septoria eradication % Figure 5. Fusarium 25% 5% 75% % 6 AviatorXpro Vertisan Proline Imtre 5 Elatus Era Libra 4 AscraXpro Folicur % disease 3 Ignite Vertisan+Ignite Comet Caramba 9 2 Priaor Keystone % 25% 5% 75% % Figure 3. Yellow rust Use Imtre and Vertisan only in miture with at least one fungicide with an alternative mode of action that has comparable efficacy against the target pathogen(s).

4 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 mitures and in alternations and ensure that miing 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 eceed the maimum recommended number of applications and follow any additional label guidance on resistance management. Some mildewicides, for eample, carry specific advice on alternating or miing active ingredients. Fungicide Futures is an initiative led by AHDB and FRAG-UK to help put good anti-resistance practice at the heart of fungicide programmes. We give you the facts, so you can maimise your return on investment and protect chemistry. cereals.ahdb.org.uk/fungicidefutures Table 3. Active ingredients for wheat disease control Active ingredients azoystrobin benzovindiflupyr biafen boscalid bromuconazole chlorothalonil cyflufenamid cyproconazole difenconazole dimoystrobin epoiconazole fenpropidin fenpropimorph folpet fluopyram fluoastrobin fluquinconazole flutriafol fluapyroad isopyrazam kresoim-methyl laminarin mancozeb metconazole metrafenone penthiopyrad picoystrobin prochloraz propiconazole proquinazid pyraclostrobin pyriofenone quinoyfen spiroamine thiophanate-methyl trifloystrobin Adear * Agate Alternil 5 Alternil Ecel 72 Alto Elite Amistar Amistar Opti Apache Arizona Artemis Asana Ascra Xpro * Aviator 235 Xpro * Aylora Azaka Balear 72 SC Banko 72 Bassoon * Boogie Xpro Bowman Bravo 5 * Brutus * Bugle * s used in AHDB fungicide performance trials

5 Table 3. Active ingredients for wheat disease control - continued Active ingredients Bumper 25EC azoystrobin benzovindiflupyr biafen boscalid bromuconazole chlorothalonil cyflufenamid cyproconazole difenconazole dimoystrobin epoiconazole fenpropidin fenpropimorph folpet fluopyram fluoastrobin fluquinconazole flutriafol fluapyroad isopyrazam kresoim-methyl laminarin mancozeb metconazole metrafenone penthiopyrad picoystrobin prochloraz propiconazole proquinazid pyraclostrobin pyriofenone quinoyfen spiroamine thiophanate-methyl trifloystrobin Capalo Caramba 9 Ceando Cello Ceravato Plus Cercobin Ceria Cherokee Chord Ciele Cirkon Cloister Comet 2 * Consul Corbel Corral Cortez Crafter Credo Curator Cyflamid * Daconil Deacon Dithane Diveo Eclipse Elatus Era * Elatus Plus Ennobe Enterprise Envoy Epic Erase Fathom Fielder Firefly 155 * Flanker Fleity * Flyer * s used in AHDB fungicide performance trials

6 Table 3. Active ingredients for wheat disease control - continued Active ingredients Fortress azoystrobin benzovindiflupyr biafen boscalid bromuconazole chlorothalonil cyflufenamid cyproconazole difenconazole dimoystrobin epoiconazole fenpropidin fenpropimorph folpet fluopyram fluoastrobin fluquinconazole flutriafol fluapyroad isopyrazam kresoim-methyl laminarin mancozeb metconazole metrafenone penthiopyrad picoystrobin prochloraz propiconazole proquinazid pyraclostrobin pyriofenone quinoyfen spiroamine thiophanate-methyl trifloystrobin Frelizon Furlong Galileo Gemstone Guru Heli Impact Imtre * Intellis Jaunt Jenton Joules Justice Juventus Kestrel Keystone Kingdom Libra Manitoba Mantra Menara Mendoza Metal Micaraz Mirage 4EC Mobius Monkey Nebula Octolan Opera Opus Team Oranis Orius Orius P Ortiva Opti Pentangle Pean Phoeni * Priaor EC * Priori Xtra * s used in AHDB fungicide performance trials

7 Table 3. Active ingredients for wheat disease control - continued Active ingredients Proline 275 * Property 18SC Propov azoystrobin benzovindiflupyr biafen boscalid bromuconazole chlorothalonil cyflufenamid cyproconazole difenconazole dimoystrobin epoiconazole fenpropidin fenpropimorph folpet fluopyram fluoastrobin fluquinconazole flutriafol fluapyroad isopyrazam kresoim-methyl laminarin mancozeb metconazole metrafenone penthiopyrad picoystrobin prochloraz propiconazole proquinazid pyraclostrobin pyriofenone quinoyfen spiroamine thiophanate-methyl trifloystrobin Prosaro Quadris Opti Quell Flo Rubric San 73 Scotia Seguris * Serpent Sirena Skyway 285 Xpro Soleil Sparticus Xpro Spirodor Sunorg Pro * Swift SC Swing Gold Talius * Tarus Tazer Tesoro Timpani Topsin Tracker Treoris Tubosan Tucana Vacciplant Vareon Variano Xpro Vegas Velogy Plus Vertisan * Vivid Vorte Wolverine Zephyr Zimbrail Zois * s used in AHDB fungicide performance trials

8 Authors Paul Gosling AHDB Further information cereals.ahdb.org.uk/fungicide Produced for you by: AHDB T Stoneleigh Park E comms@ahdb.org.uk Kenilworth W ahdb.org.uk CV8 2TL If you no longer wish to receive this information, please us on comms@ahdb.org.uk While the Agriculture and Horticulture Development Board seeks to ensure that the information contained within this document is accurate at the time of printing, no warranty is given in respect thereof and, to the maimum etent permitted by law, the Agriculture and Horticulture Development Board accepts no liability for loss, damage or injury howsoever caused (including that caused by negligence) or suffered directly or indirectly in relation to information and opinions contained in or omitted from this document. Agriculture and Horticulture Development Board 218. All rights reserved