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| Disease Management and Practices | Foliar Diseases | Seed and Seedling Diseases | Root and Crown Diseases | Head Diseases | Virus Diseases |
| Fungicide Common Name | Fungicide Trade Name | Formulated Rate/Acre |
 azoxystrobinbc |
Quadris | 6.2 - 10.8 fl oz |
| mancozeba |
Dithane M45 | 2.0 lb |
| mancozeba |
Dithane F45 | 1.6 qt |
| mancozeba |
Dithane DF | 2.0 lb |
| mancozeba |
Manzate 200 | 2.0 lb |
| mancozeba |
Manzate DF | 2.0 lb |
| mancozeba |
Penncozeb | 1.5 - 2.0 lb |
| mancozeba |
Penncozeb DF | 1.5 - 2.0 lb |
| propiconazoleb |
Tilt 3.6EC | 4.0 fl oz |
| propiconazole
+ trifloxystrobinb |
Stratego 250EC | 10.0 fl oz |
| pyraclostrobind |
Headline 2.09EC | 6.0 - 9.0 fl oz |
Other Control Recommendations: Wheat Cultivars Management Practices
Remarks:
aThese fungicides are protectant types that must be applied before infection to provide a barrier to prevent infection. Make first application when flag leaf is fully emerged (Feekes' stage 10 or Zadoks' 45) and repeat when grain head is visible about 10-12 days later. Do not make last application within 26 days of harvest. Livestock may not graze in treated areas within 26 days of last treatment. Penncozeb is only registered for use on wheat.
bDetermination of treatment threshold: Scout fields weekly from Zadoks' growth stages (GS) 30 through 59 (Feekes' GS 5 through GS 10.5) head emergence. For leaf and plume blotch collect main tillers from 10 plants from 10 randomly selected areas within the field. Examine the appropriate indicator leaf from each tiller and record the number of indicator leaves with one or more lesions. If 25% of the 100 indicator leaves have one or more lesions, then a fungicide application is indicated.
cQUADRIS should be integrated into an overall disease management strategy that includes proper selection of varieties with disease tolerance, proper timing and placement of irrigation, removal of plant debris in which inoculum overwinters, plant residue management, and crop rotation. Resistance management: Do not make more than two applications of Quadris per acre per year. Application directions: Quadris should be applied prior to or in the early stages of disease development. Applications may be made at any time, immediately after jointing (Feeks 6 or Zadok's 31) up to late head emergence (Feekes 10.5 or Zadok's 59). A crop oil concentrate adjuvant may be added at 1.0% V/V to optimize efficacy. Do not apply later than Feekes growth stage 10.5 (Zadok's 59). Do not harvest treated wheat for forage. Do not apply more than 0.77 quarts product/acre/season (0.4 lb ai/A). Do not apply within 14 days of harvest for hay. Do not apply within 45 days of harvest for grain and straw.
dHeadline should be integrated into an overall disease management strategy that includes proper selection of cultivars with disease tolerance, removal of plant debris in which inoculum overwinters, and plant residue management. Resistance management: do not make more than two applications of Headline/A/year. Determination of treatment threshold: Scout fields weekly from Zadoks' growth stages (GS) 30 through 69 (Feekes' GS 5 through 10.53). For leaf and glume blotch, collect main tillers from 10 plants from 10 randomly selected areas within the field. Examine the appropriate indicator leaf (see Indicator leaves) from each tiller and record the number of indicator leaves with one or more lesions. If 25% of the 100 indicator leaves have one or more lesions, then a fungicide application is indicated. Do not apply to wheat after Zadoks' GS 69 (Feekes' GS 10.53). Do not harvest hay within 14 days of application.
Last updated on March 03, 2003.