College of Agriculture Food and Environment - PDF document

PPFS-GH-03 College of Agriculture, Food and Environment Cooperative Extension Service Plant Pathology Fact Sheet Agriculture & Natural Resources • Family & Consumer Sciences • 4-H/Youth Development • Community & Economic Development Fungicides for Management of Diseases in Commercial Greenhouse Ornamentals Nicole Gauthier, Extension Plant Pathologist 1 Addi�onal informa�on can be found in a number of UK Coopera�ve Extension Service publica�ons or by contac�ng county Extension agents. University of Kentucky College of Agriculture, Food & Environment Extension Plant Pathology Leaf Spots & Blights, Anthracnose, Petal Blights Fire Blight Needle Diseases Powdery Mildew Rust Stem/Root rots by Water Molds Stem/Root ScabDowny Mildew FungalBacterialFungalFungalFungalOomycetesFungalFungalOomycetes 1 MBC Benzimidazoles Cleary's 3336 thiophanate-methyl Banrot* etridiazole + thiophanate-methylZyban* methyl + mancozeb xxxxxx 2 Dicarboximides Chipco 26019**iprodione 3 DMI or SI Triazoles Banner propiconazale xxxxx Bayleton xxx Eaglemyclobutanil xxx Broad spectrum fungicide for various fungi.FungicideChemicalFRAC Code Fungicide Group Broad spectrum fungicide for greenhouse and nursery use. Effective on powdery mildew. Not effective on downy mildew. Leaf Spots & Blights, Anthracnose, Petal Blights Fire Blight Needle Diseases Powdery Mildew Rust Stem/Root rots by Water Molds Stem/Root Rots ScabDowny Mildew FungalBacteri

alFungalFungalFungalOomycetesFungalFungalOomycetes FungicideChemicalFRAC Code Fungicide Group 4 Phenylamides Subdue**mefenoxam x x 7 Carboxamides Pageant* pyraclostrobin + boscalid 11 QoI Strobilurins Heritageazoxystrobin xxxxxx Pageant** pyraclostrobin + boscalid Compass**trifloxystrobin xxxxx xx 12 Phenyl Pyrroles Medallionfludioxonil xx 14 Aromatic Hydrocarbons Terrazoleetridiazole x Trubanetridiazole x TerraclorPCNB x Terraguard**triflumizole xxxx Banrot* etridiazole + thiophanate- methyl xx 17 Hydroxyanilides Decree**fenahexamid x 21 Ubiquinone QiI Segwaycyazofamid x Effective against water molds (oomycetes).Broad spectrum fungicide, not effective against oomycetes (water molds).Protection from Botrytis spp. in outdoor and greenhouse nursery crops.Effective against water molds (oomycetes).Effective on mildews, foliar pathogens, and most fungi. Fungicide resistance risk high. Some control of oomycetes. Effective against diseases caused by oomycetes (water molds), including damping-off, root and stem rots, and foliar diseases. Use as soil drench or foliar application. Effective on mildews, foliar pathogens, and most fungi. March 2020 Educational programs of the Kentucky Cooperative Extension Service serve all people regardless of race, color, age, sex, religion, disability, or national origin. Check fungicide labels for speci�c host informa�on, possible phytotoxicity, rates, re-entry intervals, and resistance management informa�on. Always follow label instr

uc�ons. Notes 1 FRAC codes group fungicides by their mode of ac�on. Fungicides groups should be rotated * Chemical contains more than one ac�ve ingredient, thus more than one FRAC code is assigned. Fungicides marked with an “x” are labeled for use. This table reports informa�on on fungicide labels and does not necessarily re�ect product e�cacy. Refer to fungicide labels for rates and usage. P = preventa�ve only Leaf Spots & Blights, Anthracnose, Petal Blights Fire Blight Needle Diseases Powdery Mildew Rust Stem/Root rots by Water Molds Stem/Root Rots ScabDowny Mildew FungalBacterialFungalFungalFungalOomycetesFungalFungalOomycetes FungicideChemicalFRAC Code Fungicide Group 28 Carbamates Banol**propamocarb x x 33 Phosphonates Aludephosphorus acid Px Aliettefosetyl-AL Px Vitalphosphorus acid x x M Kocidecopper xxx Championcopper xxx Captancaptan xxx Daconilchlorothalonil xxx Manicurechlorothalonil xxx Dithanemancozeb xxx Ziramziram x Multi-site InhibitorsEffective as a protectant treatment of water molds (oomycetes) such as Phytophthora, Pythium, and downy mildew pathogens. Effective as protectants on broad spectrum including most fungi and mildews. No systemic activity. Fungicide resistance risk low. Control of oomycetes (water molds). Not for use in landscapes.