Efficacy of fungicides for wheat disease control based on appropriate application timing
The North Central Regional Committee on Management of Small Grain Diseases (NCERA-184) developed the following information on fungicide efficacy for control of certain foliar diseases of wheat for use by the grain production industry in the United States. Efficacy ratings for each fungicide listed in the table were determined by field testing the materials over multiple years and locations by the members of the committee. Efficacy is based on proper application timing to achieve optimum effectiveness of the fungicide as determined by labeled instructions and overall level of disease in the field at the time of application. Differences in efficacy among fungicide products were determined by direct comparisons among products in field tests and are based on a single application of the labeled rate as listed in the table. Table includes most widely marketed products and is not intended to be a list of all labeled products.
This information is provided only as a guide. It is the responsibility of the pesticide applicator by law to read and follow all current label directions. No endorsement is intended for products listed, nor is criticism meant for products not listed. Members or participants in the NCERA-184 committee assume no liability resulting from the use of these products. This table was revised April 8, 2014.
spora leaf/ glume blotch
toria leaf blotch
|Tan spot||Stripe rust||Leaf rust||Stem rust||Head scab||Harvest restriction|
|Active ingredient||Product||Rate/A (fl oz)|
|Strobilurin||Picoxystrobin 22.5%||Aproach SC||6.0–12.0||G¹||—||VG||VG||E²||VG||VG||NR||Feekes 10.5 and 45 days|
|Fluoxastrobin 40.3%||Evito 480 SC||2.0-4.0||G||—||—||VG||VG||—||NL||Feekes 10.5 and 40 days|
|Pyraclostrobin 23.6%||Headline SC||6.0-9.0||G||VG||VG||E||E||E||G||NL||Feekes 10.5|
|Triazole||Metconazole 8.6%||Caramba 0.75 SL||10.0 - 17.0||VG||VG||—||VG||E||E||E||G||30 days|
|Propiconazole 41.8%||Tilt 3.6 EC3
|Prothioconazole 41%||Proline 480 SC||5.0 - 5.7||—||VG||VG||VG||—||VG
|Tebuconazole 38.7%||Folicur 3.6 F3||4.0||G||VG||VG||VG||E||E||E||F||30 days|
|Prosaro 421 SC||6.5 - 8.5||G||VG||VG||VG||E||E||E||G||30 days|
|Mixed mode of action||Metconazole 7.4%
|TwinLine 1.75 EC||7.0 – 9.0||G||VG||VG||E||E||E||VG||NL||Feekes 10.5 and 30 days|
|Quilt 200 SC||14.0||VG||VG||VG||VG||E||E||VG
|Quilt Xcel 2.2 SE||10.5-14.0||VG
||VG||VG||VG||VG||E||VG||NL||Feekes 10.5 and 35 days|
|Approach Prima SC||3.4-6.8||G||—||VG||VG||E||VG||—||NR||35 days|
|Stratego YLD 4.18
Reference: The Agronomy Guide Table 2.5-10.