Trade Name Conc. &
Form TypeActive ingredient (%) FRAC
CodeRate (fl oz/a) Anthracnose Brown
spotCercospora
leaf blight 2Frogeye
leaf spot 3Soybean
rustPHI 4 Quadris 1 2.08 SC Azoxystrobin 22.9 11 6.0 - 15.5 VG G P P G-VG 14 days Aftershock,
Evito480 SC Fluoxastrobin 40.3 11 2.0 - 5.7 G G P P U R5 30 days Aproach 2.08 SC Picoxystrobin 22.5 11 6.0 - 12.0 G G P P G 14 days Headline 2.09 EC/SC Pyraclostrobin 23.6 11 6.0 - 12.0 VG G P P VG 21 days Alto 100SL Cyproconazole 8.9 3 2.75 - 5.5 U VG F F VG 30 days Topguard 1.04 SC Flutriafol 11.8 3 7.0 - 14.0 VG VG P-G VG VG-E 21 days Tilt 1 3.6 EC Propiconazole 41.8 3 2.0 - 4.0 VG G NL F VG R5 Proline 480 SC Prothioconazole 41.0 3 5.0 - 5.7 NL U NL G-VG VG 21 days Domark 230 ME Tetraconazole 20.5 3 4.0 - 5.0 VG VG P-G G-VG VG-E R5 Topsin-M 1 70 WP Thiophanate-methyl 1 10.0 - 20.0 U U F VG G 21 days Endura 0.7 DF Boscalid 70 7 3.5 - 11.0 NL VG U P NL 21 days Quadris Top 2.72 SC Azoxystrobin 18.2
Difenoconazole 11.411, 3 8.0 - 14.0 U G-VG P-G VG VG 14 days Quadris
Top SBX3.76 SC Azoxystrobin 19.8
Difenoconazole 19.811, 3 7.0-7.5 U U U G-VG U 14 days Quilt 1 1.66 SC Azoxystrobin 7.0
Propiconazole 11.711, 3 14.0 - 20.5 U G F F VG 21 days Quilt Xcel 2.2 SE Azoxystrobin 13.5
Propiconazole 11.711, 3 10.5 - 21.0 VG G F F VG R6 Trivapro A
+ Trivapro BA=0.83 SC,
B=2.2 SEBensovindiflupyr 10.27
Azoxystrobin 13.5
Propiconazole 11.71, 11, 3 A = 4.0
B = 10.5U VG U VG U R6 14 days Affiance 1.5 SC Azoxystrobin 9.35
Tetraconazole 7.4811, 3 10.0-14.0 VG VG F G U R5 14 days Aproach
Prima2.34 SC Picoxystrobin 17.94
Cyproconazole 7.1711, 3 5.0 - 6.8 U VG P-G G U 14 days Evito T 3.99 F Fluoxastrobin 18.0
Tebuconazole 25.011, 3 4.0 - 6.0 F VG P-F F U 30 days Fortix,
Preemptor3.22 SC Fluoxastrobin 14.84
Flutriafol 19.311, 3 4.0 - 6.0 U G U G U R5 Priaxor 4.17 SC Pyraclostrobin 28.58
Fluxapyroxad 14.3311, 3 4.0 - 8.0 VG E P-G P-F VG 21 days Priaxor D 4.17 SC
1.9 SCFluxapyroxad 14.33
Pyraclostrobin 28.58
Tetraconazole 20.5011, 3 4.0 (each
component)U VG U G-VG U R5 21 days Stratego YLD 4.18 SC Trifloxystrobin 32.3
Prothioconazole 10.811, 3 4.0 - 4.65 VG VG F VG VG 21 days Topsin XRT 1 4.3 SC Tebuconazole 7.5
Thiophanate-methyl 37.53, 1 20 U U U G-VG U 21 days Differences in efficacy among fungicide products were determined by direct comparisons in field tests over multiple years and locations and are based on a single application of the labeled rate. The table is not intended to be a list of all labeled products1.
Efficacy categories: NR=Not Recommended; P=Poor; F=Fair; G=Good; VG=Very Good; E=Excellent; NL = Not Labeled for use against this disease; U = Unknown efficacy or insufficient data to rank product efficacy.
- Multiple generic products containing this mode of action may also be labeled in some states.
- Cercospora leaf blight efficacy relies on accurate application timing, and standard R3 application timings may not provide adequate disease control. Fungicide efficacy may improve with earlier or later applications; however, efficacy has been inconsistent with some products. Fungicides with a solo or mixed QoI or MBC mode of action may not be effective in areas where QoI or MBC resistance has been detected in the fungal population that causes Cercospora leaf blight.
- In areas where QoI-fungicide resistant isolates of the frogeye leaf spot pathogen are not present, QoI fungicides may be more effective than indicated in this table
- Harvest restrictions are listed for soybean harvested for grain. Restrictions may vary for other types of soybean (edamame, etc.) and soybean for other uses such as forage or fodder.
