Golf Course Management

FEB 2018

Golf Course Management magazine is dedicated to advancing the golf course superintendent profession and helping GCSAA members achieve career success.

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02.18 GOLF COURSE MANAGEMENT 83 Chemical class a Common name Topical MOA b Utility Resistance risk Trade name(s) FRAC code c Efficacy d Aromatic hydrocarbon PCNB contact preventive low Autilus (AMVAC) 14 3 e Benzimidazole thiophanate- methyl acropetal penetrant preventive/curative high 3336 (NuFarm), T-Bird (UPI), Systec 1998 (Regal), TM (ArmorTech) 1 1/2 f Dicarboximides iprodione localized penetrant preventive moderate-high Chipco 26GT (Bayer), Eclipse ETQ (SipcamAdvan), Raven (UPI), IP (ArmorTech) 2 2 g DMI fenarimol acropetal penetrant preventive/curative moderate Rubigan (Gowan) 3 2 metconazole acropetal penetrant preventive/curative moderate Tourney (Valent/Nufarm) 3 3 myclobutanil acropetal penetrant preventive/curative moderate Eagle (Dow), Golden Eagle (Andersons), Myclo (ArmorTech) 3 2 propiconazole acropetal penetrant preventive/curative moderate Banner Maxx (Syngenta), Propiconazole (Quali-Pro), Savvi (Regal), Strider (Nufarm) 3 2.5 tebuconazole acropetal penetrant preventive/curative moderate Torque (Nufarm), Mirage (Bayer), Clearscape ETQ (Sipcam Advan), TEB360 (ArmorTech) 3 3 triadimefon acropetal penetrant preventive/curative moderate Bayleton (Bayer), Fungicide VII (Andersons) 3 1.5 triticonazole acropetal penetrant preventive/curative moderate Trinity (BASF), Triton (Bayer) 3 3 Isoparaffin mineral oil acropetal penetrant preventive/curative low Civitas One (Intelligro) NC 3 e Nitrile chlorothalonil contact preventive low Daconil (Syngenta), Pegasus (UPI), Echo (Sipcam Advan), CLT (ArmorTech) M5 3 Phenylpyrrole fludioxonil contact preventive low-moderate Medallion (Syngenta) 12 3 Phosphonates fosetyl-Al true systemic preventive low Signature (Bayer), Signature Xtra (Bayer) 33 2-3 h phosphite salt true systemic preventive low Alude (Nufarm), Appear (Syngenta), Fiata (Bayer), PK-Plus (Grigg Bros.) 33 2-3 h Polyoxins polyoxin D localized penetrant preventive moderate Affirm (Nufarm) 19 3 Pyridinamine fluazinam contact preventive low Secure (Syngenta) 29 1.5 QoI azoxystrobin acropetal penetrant preventive/curative high Heritage (Syngenta), Endow (Sipcam Advan), ZOXY (ArmorTech) 11 1/3 f fluoxastrobin acropetal penetrant preventive/curative high Fame SC (FMC) 11 1/3 f pyraclostrobin localized penetrant preventive/curative high Insignia (BASF) 11 1/3 f trifloxystrobin localized penetrant preventive/curative high Compass (Bayer) 11 1/3 f SDHI penthiopyrad acropetal penetrant preventive/curative moderate-high Velista (Syngenta) 7 3 i Note. The list of products in this table is not intended to be complete. Other turf fungicide products/trade names containing the same active ingredients may also be available. a DMI, demethylation inhibitors; QoI, quinone outside inhibitors (also known as strobilurin fungicides); SDHI, superoxide dismutase inhibiting fungicides b MOA, mode of action c FRAC codes indicate the biochemical mode of action, according to the Fungicide Resistance Action Committee (www.frac.info/). M5, multisite inhibitor; NC, not classified. d Efficacy of fungicides labeled for the control of anthracnose based on a 1-4 scale, where 1= inconsistent control, 2 = fair to good control, 3 = good to excellent control, and 4 = consis- tently good to excellent control in published studies (32). e To reduce the potential for phytotoxicity, do not apply during hot weather (>90 F) or periods of severe environmental stress. Do not mix Civitas with PCNB, chlorothalonil, DMI fungicides, or iron-containing products during periods of high temperatures and high humidity. Add a pigment (for example, PAR) to Autilus to mask chlorosis, which may occur at high label rate. After application, immediately irrigate with 0.25 inch of water. f Lower efficacy rating applies when fungicide resistant isolates of Colletotrichum cereale are present. g Variable control can be expected when this product is applied alone. For best results, tank-mix with other fungicides known to suppress anthracnose to improve efficacy. h Should be tank-mixed with other fungicides known to suppress anthracnose under conditions of high disease pressure in order to provide acceptable disease control. i More effective when used preventively. Table 1. Fungicides that are currently available for anthracnose control. Fungicides currently available for anthracnose control

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