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Vol. 17, No. 7
Article 5 of 9
April 27, 2007

Foliar Fungicides Labeled for Use on Winter Wheat
By Laura Sweets

The following table was prepared using current company product labels and manufacturers' Websites. However, label registrations can change at any time. Before using any agricultural pesticide, read and follow directions accompanying that product. Product names have been used for clarity. Reference to specific trade names does not imply endorsement by the University of Missouri; discrimination is not intended against similar products not listed.

Trade Name
Company
Common Chemical
Name and % of
Active Ingredients
RateAdditional Label Information
Bumper 41.8 EC
Makhteshim-Agan
propiconazole41.80%4.0 fl oz per acreControls rusts (Puccinia spp.), powdery mildew (Erysiphe spp.), leaf blight and glume blotch (Septoria spp.), tan spot (Pyrenophora tritici-repentis) and Helminthosporium leaf blight.

Apply by ground or aerial application or through irrigation equipment.

Highest yields are normally obtained when Bumper 41.8 EC is applied to the emerging flag leaf. For wheat only, Bumper 41.8 EC can be applied until full head emergenece (Feekes growth stage 10.5). Do not apply after this growth stage to avoid possible illegal residues. Bumper 41.8 EC may be applied earlier if disease symptoms appear.

Do not apply more than 4.0 fl oz of Bumper 41.8 EC per acre per season.

Do not graze or feed livestock treated wheat forage or cut the green crop for hay or silage.

After harvest, the straw may be used for bedding or feed.

Dithane DF Rainshield
Dow AgroSciences

Dithane F-45
Rainshield

Dow AgroSciences

Dithane M45
Dow AgroSciences

mancozeb

mancozeb

mancozeb

75.00%

37.00%

80.00%

2.1 lb per acre

1.6 qt per acre

2.0 lb per acre

For control of Helminthosporium leaf spot, leaf rust, Septoria glume blotch, Septoria leaf spot and tan spot.

Start applications at the onset of disease or when plants are in the tillering to jointing stage and repeat at 7- to 10-day intervals. The addition of Latron CS-7 to spray solutions will improve performance.

Do not make more than three applications during the season.

Do not apply after Feekes growth stage 10.5 or heading, but not less than 26 days of harvest.

Do not graze livestock in treated area prior to harvest.

Headline
BASF
pyraclostrobin23.60%6.0 to 9.0 fl
oz per acre
For control of leaf rust, powdery mildew, Septoria leaf and glume blotch, spot blotch, stem rust, stripe rust and tan spot.

For optimal disease control, begin Headline applications prior to disease development. To maximize yields in cereals it is important to protect the flag leaf. Apply Headline immediately after flag leaf emergence for optimum results.

Headline does not control Fusarium head blight (head scab) or prevent the reductions in grain quality that can result from this disease.

Resistance management: To limit the potential for development of resistance, do not make more than two applications of

Headline or other strobilurin fungicides per season.

Apply no later than the beginning of flowering (Feekes 10.5).

Do not harvest wheat hay or feed green-chopped wheat within 14 days after last application.

Kocide DF
Griffi n LLC
copper
hydroxide
61.40%1.5 to 2.0 lb
per acre
Target diseases: Helminthosporium spot blotch and Septoria leaf blotch.

Make first application at early heading and follow with second spray 10 days later. Use the higher rates when conditions favor disease.

Kocide 4.5FL
Griffi n LLC
copper
hydroxide
37.50%1.0 to 1.33
pt per acre
Target diseases: Helminthosporium spot blotch and Septoria leaf blotch.

Make first application at early heading and follow with second spray 10 days later. Use the higher rates when conditions favor disease.

Kocide 101
Griffi n LLC
copper
hydroxide
77.00%1.5 to 2.0 lb
per acre
Target diseases: Helminthosporium spot blotch and Septoria leaf blotch.

Make first application at early heading and follow with second spray 10 days later. Use the higher rates when conditions favor disease.

Kocide 2000
DuPont
copper
hydroxide
53.80%1.0 to 1.5 lb
per acre
Target diseases: Helminthosporium spot blotch and Septoria leaf blotch.

Make first application at early heading and follow with second spray 10 days later. Use the higher rates when conditions favor disease.

Kumulus DF
Micro Flo
Company LLC
sulfur80.00%6 to 15 lb per acreFor the control of powdery mildew.

Apply when disease first appears and repeat as necessary or with the regularly scheduled insecticide program.

Manzate Pro-Stick
DuPont

Manzate Flowable
Griffi n L.L.C.

mancozeb

mancozeb

75.00%

37.00%

2.0 lb per acre

1.6 qt per acre

For control of Helminthosporium leaf spot, leaf rust, Septoria glume blotch, Septoria leaf spot and tan spot.

Start applications at the onset of disease or when plants are in the tillering to jointing stage and repeat at 7- to 10-day intervals.

Do not make more than three applications during the season.

Do not apply more than 6 lb or 4.8 qt/acre/crop.

Do not apply within 26 days of harvest.

Do not graze livestock in treated areas prior to harvest.

ManKocide
Griffi n L.L.C.
mancozeb +
copper
hydroxide
15.00%
46.10%
2.0-2.5 lb per acreFor control of Helminthosporium leaf spot, Septoria glume blotch and Septoria leaf spot

Make first application at early heading and follow with second spray 10 days later. Use higher rates when conditions favor disease.

Do not apply within 26 days of harvest.

Do not graze livestock in treated areas prior to harvest.

Penncozeb 4FL
Cerexagri

Penncozeb 75DF
Cerexagri

Penncozeb 80WP
Cerexagri

mancozeb

mancozeb

mancozeb

37.00%

75.00%

80.00%

0.8 to 1.6 qt
per acre

1.0 to 2.0 lb
per acre

1.0 to 2.0 lb
per acre

For control of Helminthosporium leaf spot, Septoria leaf spot, Septoria glume blotch, leaf rust and tan spot.

Start application at the onset of disease or when plants are in tillering to jointing stage and repeat at 7- to 10-day intervals.

Do no apply more than 3 applications in one season.

Do not apply more than 6.4 lbs. Penncozeb 75DF or 6.0 lbs. Penncozeb 80WP/acre/crop.

Do not apply within 26 days of harvest.

Do not graze livestock in treated areas prior to harvest.

Do not apply after heading (around Feekes 10.5).

PropiMax EC
Dow AgroSciences
propiconazole41.80%4.0 fl oz per acreFor control of powdery mildew (Erysiphe graminis f. sp. tritici), leaf and glume blotch (Septoria tritici and Stagonospora nodorum) and leaf rust (Puccinia reconditia), as well as suppression of Fusarium head blight (Fusarium spp.).

Highest yields are normally obtained when PropiMax EC is applied to the emerging flag leaf. Application may be made through Feekes Growth Stage 10.5 (full head emergence) using ground or aerial equipment. Do not apply after this growth stage to avoid possible illegal residues. PropiMax EC may be applied earlier if disease symptoms appear.

Do not apply more than 4.0 fl oz of PropiMax EC per acre per season.

Do not apply within 40 days of harvest.

Do not graze or feed livestock treated wheat, barley or rye forage or cut the green crop for hay or silage.

After harvest, the straw from these crops may be used for bedding or feed.

Quadris
Syngenta
azoxystrobin22.90%4.0 to 12.0 fl oz per acre for leaf rust, stripe rust, stem rust, Septoria leaf and glume blotch, and tan spot

7.5 to 11.0
fl oz per acre
powdery mildew

Quadris should be applied prior to disease development from jointing to (Feekes 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 effi cacy.

Resistance Management: Follow the resistance management guidelines in the resistance management section of the Quadris label.

Do not apply until after forage stage (Feekes 6 or Zadok's 31).

Do not apply later than Feekes growth stage 10.5 (Zadok's growth stage 59).

Do not harvest treated wheat for forage.

Do not apply more than 0.40 lb a.i./acre/per season of azoxystrobin-containing products.

Do not apply within 14 days of harvest for hay.

Do not apply within 45 days of harvest for grain and straw.

Quilt
Syngenta
azoxystrobin
propiconazole
7.00%
11.70%
7.0 to 14.0 fl
oz per acre
7.0 to 14.0 fl oz per acre for early season suppression of powdery mildew, Septoria leaf blotch, Stagonospora glume blotch and tan spot. 14.0 fl oz per acre for control of leaf diseases (rusts, powdery mildew, Septoria leaf blotch, Stagonospora glume blotch and tan spot).

Protecting the flag leaf is important for maximizing the potential yield. Highest yields are obtained when Quilt is applied when the flag leaf is 50% to fully emerged.

Applications may be made no closer than a 14-day interval. For wheat only, Quilt may be applied through full head emergence (Feekes growth stage 10.5). Do not apply after this stage to avoid illegal residues.

Do not apply more than 2 applications per acre per year. Do not apply more than 20.5 fl oz per acre per season.

Do not apply within 45 days of harvest for grain and straw.

Do not harvest wheat for forage.

Do not graze or feed livestock treated forage or cut green crop for hay or silage.

Under certain environmental conditions, tank mixes of Quilt plus herbicides and/or fertilizers may cause crop injury in barley, triticale and wheat.

Stratego
Bayer CropScience
propiconazole
trifloxystrobin
11.40%
11.40%
10.0 fl oz per acreFor control of glume blotch, leaf blight, powdery mildew, rusts and tan spot.

Begin applications preventively when conditions are favorable for disease development. A second application (minimum interval of 14 days) may be made if needed.

Early season leaf disease suppression: Apply 6.0 to 8.0 fl oz per acre of Stratego for suppression of tan spot, Septoria and powdery mildew.

Do not apply more than 2 applications per season.

Do not apply Stratego after Feekes growth stage 10.5 (full head emergence).

Do not apply Stratego within 35 days of harvest.

See label for grazing restrictions.

Tilt
Syngenta
propiconazole41.80%2.0 to 4.0 fl
oz per acre
Early season leaf disease suppression: apply 2.0-4.0 fl oz per acre for suppression of tan spot, Septoria and powdery mildew.

Leaf disease control: apply 4.0 fl oz/acre at first appearance of disease. Protecting the flag leaf is important for maximizing the yield potential.

Highest yields are normally obtained when Tilt is applied to the emerging flag leaf. For wheat only, Tilt can be applied until full head emergence (Feekes Growth Stage 10.5). Do not apply after this growth stage to avoid possible illegal residues. Tilt may be applied earlier if disease symptoms appear.

Tilt may be applied by ground or aerial application or through irrigation equipment.

Do not apply more than 4.0 fl oz of Tilt per acre per season.

Do not graze or feed livestock treated wheat forage or cut the green crop for hay or silage. After harvest, the straw from these crops may be used for bedding or feed.

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