Horticulture & Turf Fungicide Effects on Mycorrhizal Fungi Recommendations for: Endomycorrhizae Trade Name
Common Name / Active
OK
26/36™
Thiophanate-methyl + Iprodione
3336™
Thiophanate-methyl
Actino Iron®
Streptomyces lydicus WYEC 108
Actinovate® L&G
Streptomyces lydicus WYEC 108
Actinovate® SP
Streptomyces lydicus WYEC 108
X X X X X
Adorn®
Fluopicolide
Affirm™
Polyoxin-D
Aliette®
Fosetyl-AL
AllPro® Exotherm Termil
Chlorothalonil
Alude™
Phosphorous acid
Areca™
Fosetyl-AL
Astun™
Isofetamid
Banner® MAXX® II
Propiconazole
Banol®
Propamocarb hydrochloride
Banrot®
Etridiazole + Thiophanate-methyl
Bayleton®
Triadimefon
Camelot®
Copper sulfate
Captan
Captan
Carb-O-Nator™
Potassium bicarbonate
Cease®
Bacillus subtilis QST 713
Chipco® 26019
Iprodione
Companion®
Bacillus subtilis GB03
Compass®
Trifloxystrobin
Concert® II
Propiconazole + Chlorothalonil
CuPro™ 2005 T/N/O
Copper hydroxide
Cuproxat®
Copper sulfate
Daconil® Ultrex®
Chlorothalonil
Decree®
Fenhexamid
Avoid Use
Insufficient Data
X X
X X
X
X X
X X
X
X
OK
X
X
X
X X
Insufficient Data
X X
X X
X
No effect at low rate, tends to suppress at high rate.
X
X
X
X X X X X
No effect at low rate, tends to suppress at high rate.
X X
X
Avoid Use
X X X
X
X X X X X
Ectomycorrhizae
X
X X X X X
No effect at low rate, tends to suppress at high rate.
X
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Recommendations for: Endomycorrhizae Trade Name
Common Name / Active
OK
Dithane®
Mancozeb
X
Dorado™
Propiconazole
Eagle® 20 EW
Myclobutanil
Empress™ Intrinsic
Pyraclostrobin
FenStop®
Fenamidone
Fore®
Mancozeb
Fungo®
Thiophanate-methyl
Greenshield®
Quaternary Amines
Heritage®
Azoxystrobin
Junction™
Kopa™ Insecticidal Soap
Mancozeb Didecyl dimethyl ammonium chloride Potassium salts of fatty acids
Lesan
Fenaminosulf
M-Pede®
Potassium salts of fatty acids
Medallion®
Fludioxonil
Micora™
Mandipropamid
MilStop®
Potassium bicarbonate
Mural™
Benzovindiflupyr + Azoxystrobin
Nordox 75WG
Cuprous Oxide
OHP 6672®
Thiophanate-methyl
Orkestra™
Fluxapyroxad + Pyraclostrobin
Orvego™
Ametoctradin + Dimethomorph
Pageant® Intrinsic™
Boscalid + Pyraclostrobin
Palladium™
Cyprodinil + Fludioxinil
Pentathlon™
Mancozeb
Phaltan®
Folpet
Phyton® 27
Copper sulfate
Phyton® 35
Copper sulfate
Pipron®
Piperalin
PlantShield® HC
Trichoderma harzianum T22
Prodigy™ Signature®
Fosetyl-AL
KleenGrow™
X X
Avoid Use
Insufficient Data
Ectomycorrhizae OK
X
X X
X X X X X
Avoid Use
X X
X
X X
X
X
X X
X X
X
X X
X X
X X X
X
X X
X X X
X X
X
X
X
X X X X
X
X X
Insufficient Data
X X
X X
X X X X X X X X X X
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Recommendations for: Endomycorrhizae Trade Name
Common Name / Active
OK
Proplant™
Propamocarb
X
ProStar®
Flutolanil
Protect™ DF
Manganese + zinc
Rally® 40WSP
Myclobutanil
RootShield®
Rubigan®
Trichoderma harzianum T22 Trichoderma harzianum T22 + Trichoderma virens G41 Fenarimol
Segway® O
Cyazofamid
Segovis®
Oxathiapiprolin
Senator® 50 SC (Canada)
Thiophanate-methyl
Senator® 70 WP WSB
Thiophanate-methyl
Sentinel® 40WG
Cyproconazole
Signature™ XTRA
Fosetyl-AL
SoilGard®
Stature® SC
Gliocladium virens GL-21 Thiophanate-methyl + Chlorothalonil Dimethomorph
Strike® 50 WDG
Triadimefon
Strike® Plus 50 WDG
Triadimefon + Trifloxystrobin
Subdue® MAXX®
Metalaxyl-M (=Mefenoxam)
Subtilex® NG
Bacillus subtilis MBI 600
Suffoil-X™
Petroleum oil
Systec 1998®
Thiophanate-methyl
Systhane®
Myclobutanil
Terraclor®
Pentachloronitrobenzene (PCNB)
Terraguard®
Triflumizole
Terraneb SP
Chloroneb
Terrazole®
Etridiazole
RootShield® Plus
Spectro® 90
Teremec SP
Chloroneb
Avoid Use
Insufficient Data
Avoid Use
Insufficient Data
X X X X
X
X
X X
X X X X X
X X X X X X
X X
X X
X
X X
OK
X X
X X
X X
Ectomycorrhizae
X X
X
X
No effect at low rate, tends to suppress at high rate.
X X X
X X
X X X
No effect at low rate, tends to suppress at high rate.
X
No effect at low rate, tends to suppress at high rate.
X
No effect at low rate, tends to suppress at high rate.
X
X X
X X
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Recommendations for: Endomycorrhizae Trade Name
Common Name / Active
Tersan® 1991
Benomyl
Tersan® 75
Triathlon® BA
Thiram Clarified hydrophobic extract of neem oil Bacillus amyloliquefaciens D747
Trigo™
Triadimefon + Trifloxystrobin
Trinity®
Triticonazole
Trinity® TR
Triticonazole
Truban®
Etridiazole
Turfcide®
Pentachloronitrobenzene (PCNB)
Triact® 70
X3™ ZeroTol® Ziram®
Hydrogen dioxide + peroxyacetic acid + octanoic acid Hydrogen dioxide + peroxyacetic acid Zinc dimethyldithiocarbamate
OK
Avoid Use
Insufficient Data
X X
Ectomycorrhizae Avoid Insufficient Use Data No effect at low rate, tends to suppress at high rate.
OK
X
X X
X X X X
No effect at low rate, tends to suppress at high rate.
X
X X
X X X
X X
X
X
X
X X
General Observations: *The longer the wait to apply any fungicide after mycorrhizal fungi inoculation, the better for the mycorrhizal fungi development. **Most foliar sprays of any fungicide (except systemics such as Bayleton) have little effect on mycorrhizal fungi. This chart is updated periodically, as new products are added, and results of new trials are published. Please visit www.mycorrhizae.com or contact your Mycorrhizal Applications Representative for the latest version of this chart.
Updated December 27, 2017
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