Angular Leaf Spot

*Fixed copper (M1)

See label

-

0

0

Repeated use may cause leaf yellowing.

Bacterial Fruit Blotch

*Fixed copper (M1)

See label

-

0

0

Start applic. at first bloom; ineffective once fruit reach full size.  Repeated use may cause leaf yellowing.

Belly Rot or
Fruit Rot or Rhizoctonia Rot

*Azoxystrobin (Amistar, Quadris, Heritage) 2.08F (11)

See label

See label

1

4 hr

Make banded applic. to soil surface or in-furrow applic. before seed are covered. 

Chlorothalonil (Bravo Ultrex) 6F
(M5)

1.8 lb/A

1.5 lb a.i./A

0

12 hr

Use in sufficient water to obtain adequate coverage.  Re-apply every 7 days.  Spraying mature watermelon fruit may result in sunburn of upper surface.

Potassium phosphates (Fosphite, Fungi-Phite, Prophyt, Topaz) (33)

See label

See label

0

See label

Check label for required min. gal/A.  Restrictions are for use following copper applic., plant and environmental conditions that restrict use, and compatibility.

Thiophanate-methyl (Topsin M) 70WP (1)

0.5 lb/A

0.35 lb/A

-

0.5 days

Apply in sufficient water to obtain run-off to soil surface. 

*Mefenoxam (Ridomil Gold, Ultra Flourish) (4)

1 to 2 pt/A

0.5 to 1 lb/A

-

2 days

Preplant incorporated (broadcast or band); soil spray (broadcast or band); or injection (drip irrigation. 

Potassium phosphates (Fosphite, Fungi-Phite, Prophyt, Topaz) (33)

See label

See label

0

See label

Check label for required min. gal/A.  Restrictions are for use following copper applic., plant and environmental conditions that restrict use, and compatibility with other materials.

Propamocarb (Previcur Flex) 6F (28)

12.8 fl oz/100 gal

0.6 lb/100 gal

2

0.5 days

Rates based on rock wool cube saturation in the greenhouse.  See label for use in seed beds, drip system, and soil drench.

*Azoxystrobin (Amistar, Quadris, Heritage) 2.08 F (11)

11 to 15.4 fl oz/A

0.18 to 0.25 lb/A

1

4 hr

Make no more than 1 applic. before alternating with a fungicide with a different mode of action.  Apply no more than 2.88 qt/crop/A/season.

Bacillus spp. (Serenade Max, Sonata, Rhapsody)

See label

See label

0

0

Do not use product alone.  Apply with registered fungicide.

*Chlorothalonil (Bravo Ultrex) 6F (M5)

1.8-2.7 lb/A

1.5-2.2 lb a.i./A

0

12 hr

Use in sufficient water to obtain adequate coverage.  Re-apply every 7 days.  Spraying mature watermelon fruit may result in sunburn of upper surface.

Copper (M1)

See label

-

-

-

Repeated use may cause leaf yellowing.

Famoxadone + cymoxanil (Tanos) 50WP (11+27)

8 oz/A

4 oz/A

3

0.5

Only for Alternaria and Anthracnose.  Do not make >1 applic. before alternating with a fungicide of a different mode of action.  Must be tank-mixed with  a contact fungicide.

Fenamidone (Reason) 500SC (11)

5.5 fl oz/A

0.178 lb/A

14

0.5 day

Begin applic. when conditions favor disease and continue on 5- to 10-day interval.  Do not apply >22 fl oz/season.  Alternate with fungicides from different resistance management groups, and make <4 applic. of Group 11 fungicides per season.

*Kresoxim methyl (Sovran) (11)

4.8 oz

-

0

12 hr

For Gummy Stem Blight.  Follow resistance management guidelines for QoI fungicides.

*Mancozeb (M3)

2 to 3 lb/A

1.6 to 2.4 lb/A

5

1 day

Apply no more than 24 lb/A/season.

*Maneb (Maneb) 75DF (M3)

1.2 to 1.6 lb/A

0.44 to 0.6 lb/A

5

1 day

Spray at first appearance and then at 7- to 10-day intervals. 

*Pyraclostrobin (Cabrio ) 20WG (11)

12 to 16 oz/A

2.4 to 3.2 oz/A

0

0.5

Do not use for Gummy Stem Blight where resistance to Group 11 (QoI) fungicides exists.  Do not make >1applic. before alternating to a fungicide with a different mode of action. 

*Pyraclostrobin + boscalid (Pristine) 38WG (11+7)

12.5 to 18.5 oz/A

4.8 to 7 oz/A

0

12 hr

Not for Target Spot.  Use highest rate for Anthracnose.  Make no more than 4 applications per season. 

Tebuconazole
(Folicur) 3.6F

8 fl oz/A

0.22 lb/A

7

12 hr

Gummy stem blight suppression only.  Limited to 24 fl oz/A/crop/season.

Thiophanate-methyl (Topsin M) 70WP (1)

0.5 lb/A

0.35 lb/A

-

0.5

Spray at first appearance and then at 7- to 10-day intervals.

Mancozeb + Zoxamide (Gavel) 75DF (M3+22)

1.5 to 2 lb/A

1.13 lb to 1.5 lb/A

5

2

Begin applications when plants are in 2-leaf stage, and repeat at 7- to 10-day intervals.

Downy
Mildew

Azoxystrobin (Amistar, Quadris, Heritage) 2.08 F (11)

11 to 15.4 fl oz/A

0.18 to 0.25 lb/A

1

4 hr

Make no more than 1 applic. before alternating with a fungicide with a different mode of action.  Apply no more than 2.88 qt/crop/A/season.

Bacillus spp. (Rhapsody, Serenade, Sonata)

See label

See label

-

0

Do not use product alone.  Apply with registered fungicide.

Chlorothalonil (Bravo Ultrex) 6F (M5)

1.8 lb/A

1.5 lb a.i./A

0

12 hr

Use in sufficient water to obtain adequate coverage.  Re-apply every 7 days.  Spraying mature watermelon fruit may result in sunburn of upper surface.

*Cyazofamid (Ranman) 400 CS (21)

2.75 fl oz/A

0.071 lb/A

0

0.5

Do not apply >6 sprays/crop.  Make no more than 3 consecutive applic. followed by 3 applic. of fungicides from different resistance management groups.

*Cymoxanil (Curzate) 60DF (27)

3.2 oz/A

1.9 oz/A

3

0.5

Use only in combination with labeled rate of protectant fungicide.  No more than 9 applic./12 months.

Dimethomorph (Acrobat, Forum) 50WP (40)

6.4 oz/A

3.2 oz/A

0

0.5

Apply only as a tank mix with another fungicide.  Do not make >2 sequential applic.

*Famoxadone + cymoxanil (Tanos) 50WP (11+27)

8 oz/A

4 oz/A

3

0.5

Do not make >1 applic. before alternating with a fungicide that has a different mode of action.  Must be tank mixed with contact fungicide.

*Fenamidone (Reason) 500SC (11)

5.5 fl oz/A

0.178 lb/A

14

0.5

Begin applications when conditions favor disease and continue on a 5- to 10-day interval.  Do not apply >22 fl oz/season.  Alternate with fungicide from different resistance management group, and make no more than 4 total applic. of Group 11 fungicides/season.

Fixed copper (M1)

See label

-

-

-

Repeated use may cause leaf yellowing.

*Fluopicolide (Presidio) (43)

3.0-4.0 fl oz/A

0.09-0.125 lb a.i./A

2 days

12 hrs

Max rate is 4 fl oz/A/applic. And 12 fl oz/A/season.  Apply no more than 2 sequential applic. Before alternating to fungicide of a different chemistry.

Fosetyl-Al (Aliette) 80WDG (33)

2 to 5 lb/A

1.6 to 2.4 lb/A

0.5

0.5

Do not tank mix with coppers.  Mixing with surfactants or foliar fertilizers is not recommended.

*Mancozeb (M3)

2 to 3 lb/A

1.6 to 2.4 lb/A

5

1

Apply no more than 24 lb/A/season

*Mandipropamid (Revus) (40)

8 oz

0.13 lb/a.i./A

0

12 hr

Max of 4 applic. during 1 crop cycle.  Apply no more than 2 sequential applic. before alternating to a fungicide of a different chemistry.  An adjuvant is recommended.  Do not use in transplant production.  30 day plant back restriction, unless plant appears on label.

*Maneb (Maneb) 75DF (M3)

1.5 to 2 lb/A

0.44 to 0.6 lb/A

5

1

Spray at first appearance and at 7-10-day intervals. 

*Mefenoxam + chlorothalonil (Ridomil Gold Bravo, Fluoronil) 76.5WP (4+M5)

2 to 3 lb/A

1.5 lb/A

7

2

Spray at first appearance and repeat at 14-day intervals.  Apply full rate of protectant fungicide between applic.  Avoid late-season applic., when plants reach maturity.

Potassium phosphates (Fosphite, Fungi-Phite, Prophyt, Topaz) (33)

See label

See label

0

See label

Check label for required min. gal/A.  Restrictions are for use following copper applic., plant and environmental conditions that restrict use, and compatibility with other materials.

*Propamocarb  (Previcur Flex) 6F (28)

1.2 pt/A

0.9 lb/A

2

0.5

Begin applic. before infection; continue on a 7- to 14-day interval.  Do not apply >6 pt/season.  Always tank mix with another downy mildew product.

*Pyraclostrobin (Cabrio) 20WG (11)

8 to 12 oz/A

1.6 to 2.4 oz/A

0

0.5

Do not make >1 applic. before alternating to a fungicide with a different mode of action.

*Pyraclostrobin + boscalid (Pristine) 38WG (11+7)

12.5 to 18.5 oz/A

4.8 to 7 oz/A

0

12 hr

Not for Target Spot.  Use highest rate for Anthracnose.  Make no more than 4 applications per season. 

Trifloxystrobin (Flint) 50WDG (11)

4 oz/A

2 oz/A

0

0.5

Begin applic. preventatively and continue as needed alternating applic. of Ridomil Gold Bravo on a 7-10-day interval.

*Mancozeb + Zoxamide (Gavel) 75DF (22+M3)

1.5 to 2 lb/A

1.13 to 1.5 lb/A

5

2

Begin applic. when plants are in 2-leaf stage, and repeat at 7-10-day intervals.

Phytophthora Blight

Cyazofamid (Ranman) 400SC (21)

2.75 fl oz/A

0.071 lb/A

0

0.5

Do not apply >6 sprays/crop.  Make no more than 3 consecutive applic. followed by 3 applic. of fungicides from different resistance management groups.

Dimethomorph (Acrobat, Forum) 50WP (15)

6.4 oz

3.2 oz

0

0.5

Must be applied as a tank mix with another fungicide active against Phytophthora Blight.  Do not make >2 sequential applic.

*Fluopicolide (Presidio) (43)

3.0-4.0 fl oz/A

0.09-0.125 lb a.i./A

2 days

12 hrs

Max rate is 4 fl oz/A/applic. And 12 fl oz/A/season.  Apply no more than 2 sequential applic. Before alternating to fungicide of a different chemistry.

*Mandipropamid (Revus) (40)

8 oz

0.13 lb/a.i./A

0

12 hr

Max of 4 applic. during 1 crop cycle.  Apply no more than 2 sequential applic. before alternating to a fungicide of a different chemistry.  An adjuvant is recommended.  Do not use in transplant production.  30 day plant back restriction, unless plant appears on label.

Potassium phosphates (Fosphite, Fungi-Phite, Prophyt, Topaz) (33)

See label

See label

0

See label

Check label for required min. gal/A.  Restrictions are for use following copper applic., plant and environmental conditions that restrict use, and compatibility with other materials.

*Azoxystrobin (Amistar, Quadris, Heritage) 2.08 F (11)

11 to 15.4 fl oz/A

0.18 to 0.25 lb/A

1

4 hr

Make no more than 1 applic. before alternating with a fungicide with a different mode of action.  Apply no more than 2.88 qt/crop/A/season.

Chlorothalonil (Bravo Ultrex) 6F (M5)

1.8-2.7 lb/A

1.5-2.2 lb a.i./A

0

12 hr

Use in sufficient water to obtain adequate coverage.  Re-apply every 7 days.  Spraying mature watermelon fruit may result in sunburn of upper surface.

Copper (M1)

See label

-

-

-

Repeated use may cause leaf yellowing.

Horticultural Oils (JMS Stylet Oil, Sporan, Neem Oil)

See label

See label

-

-

See label for specific application techniques required. 

*Kresoxim methyl (Sovran) (11)

3.2-4.8 oz

-

0

12 hr

Follow resistance management guidelines for QoI fungicides.

*Myclobutanil (Nova, Rally) 40WP (3)

2.5 to 5 oz/A

1 to 2 oz/A

0

1

Apply no more than 1.5 lb/A/crop.  Observe 30-day plant back interval.

*Pyraclostrobin (Cabrio) 20WG (11)

8 to 12 oz/A

1.6 to 2.4 oz/A

0

0.5

Do not make >1 applic. before alternating to a fungicide with a different mode of action.

*Pyraclostrobin + boscalid (Pristine) 38WG (11+7)

12.5 to 18.5 oz/A

4.8 to 7 oz/A

0

12 hr

Not for Target Spot.  Use highest rate for Anthracnose.  Make no more than 4 applications per season. 

*Quinoxyfen (Quintec) (13)

4-6 fl oz/A

-

3 days

12 hr

Do not make more than 4 applic./season.  Rotate fungicide chemistries to avoid resistance development. 

*Sulfur (M2)

See label

-

0

1

Do not use when temps. are over 90°F or on sulfur-sensitive varieties.

Tebuconazole
(Folicur) 3.6F

4-6 fl oz/A

0.11-0.17 lb/A

7

12 hr

Follow label for resistance management guidelines.  Limited to 24 fl oz/A/crop/season.

*Thiophanate-methyl (Topsin M) 70WP (1)

0.5 lb/A

0.35 lb/A

-

0.5

Spray at first appearance and then at 7- to 10-day intervals.

*Trifloxystrobin (Flint) 50WDG (11)

1.5 to 2 oz/A

0.75 to 1 oz/A

0

0.5

Begin applic. preventatively and continue as needed on a 7-14-day interval.  Do not apply >1applic. before alternating with a non-strobilurin fungicide. 

*Triflumizole (Procure) 50WS (3)

4 to 8 oz

2 to 4 oz

0

0.5

Begin applic. at vining or first sign of disease, and repeat at 7-14-day intervals.