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Eagle 20EW Specialty Fungicide
Eagle 20EW is a specialty turf fungicide that delivers superior control of various lawn, turf, and ornamental diseases such as dollar spot and brown patch.
09/21/25
Eagle 20EW Specialty Fungicide, manufactured by DOW/CORTEVA, is a reliable fungicide used for curative and preventative control of various plant diseases on turf and ornamental plants.
A single application of Eagle 20EW can protect plants for up to 28 days. The great thing about Eagle 20EW is that you only need a small amount to do the job—it's that strong.
Eagle 20EW Speciality Fungicide is a versatile fungicide that works systemically, affecting the entire plant to fully protect it and remove any disease.
Tools Needed
You will need a handheld pump, hose-end, or backpack sprayer for residential spray treatments. Our top recommendation is a hand-pump sprayer.
How to Use
- Step 1: Determine how much Eagle 20 EW you will need by measuring the square footage of the treatment area. To do this, measure the length and width of the treatment area in feet and then multiply the two values (length x width = square footage). The recommended rate of Eagle 20EW is 1 to 2.4 fl. oz. per 1,000 square feet. Depending on the diseases you wish to treat, you should mix with 1 gallon of water for foliar diseases or 2 to 3 gallons to control diseases causing root and crown rots. The exact amount varies depending on the disease type (check the label). For example, if you want to control dollar spot on turfgrass and measure an area of 3,000, the label states to use 1 fl. oz. per 1,000 sq. ft. In this case, mix 3 oz. of Eagle in 3 gallons of water to cover the entire area.
- Step 2: In a hand-pump sprayer, add about halfway water and then Eagle 20EW at the appropriate rate based on your calculations. Fill the tank the rest of the way with water, then agitate well until the product is well mixed.
- Step 3: Apply the Eagle 20EW spray solution as a spot treatment upon the first sign of the disease to the foliage, or you could spray the solution preventatively. We recommend setting the sprayer to a fan spray to get a nice uniform coating on the infected plant.
- Step 4: Reapply as needed every 7 to 10 days until the disease is gone or preventatively once a month during the disease season. Depending on the disease type, it may take up to two months of repeat applications to successfully remove the disease.
Where to Use
Eagle 20EW is a versatile formula that can be used to prevent or cure diseases found on established turfgrass (including residential and commercial lawns, ornamental turfgrass, grounds or lawns around business and office complexes, and golf course fairways, roughs, tee boxes, and greens), landscape ornamentals, greenhouse and nursery ornamentals, and non-commercial tree fruits and vines, specifically apples, stone fruits, and grapes.
When to Use
Use any time of the year when you notice a fungal disease on your lawn or ornamentals. You can also apply it preventatively during the growing season. Optimum disease control is achieved when Eagle 20 is applied in a regularly scheduled preventative program.
Safety Information
Eagle 20 EW is safe to use around children and pets when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when mixing and applying this product.
Do not allow people or pets to enter treated areas until 24 hours have passed after application.
Special Considerations
After a spray treatment, avoid mowing or watering your lawn for at least 24 hours to allow the product to dry. This product can also be applied with adjuvants, fungicides, herbicides, micronutrients, etc, check the label for compatibility spray charts, rates and precautions. You should always perform a small compatibility test in a small jar to see that all the products will dilute completely and that the final mixture does not show uneven distribution.
Availability | Online |
Restricted Use | No |
Shipping Restrictions | 1 Gallon: AK, CA, CT, HI, MI, NY, OR, RI, SC, VT 16 Ounce: AK, CA, CT, HI, MI, NY, OR, RI, SC, VT |
Brand | CORTEVA |
Keith's Pro Tips | "Eagle 20EW does a great job of preventing turf diseases from taking hold on your plants. Apply using a 10—to 14-day application schedule to protect your plants all season long." |
Product Drawbacks | Eagle 20 EW is a suspended concentrate and thus it may require repeated agitation while spraying. |
Target Pests | Dollar spot, Brown patch, Anthracnose, Spring dead spot, Necrotic ring spot, Red thread, Leaf spot, Powdery mildew, Rusts, Zoysia large patch, Septoria leaf spot, Zonate Leaf Spot, Copper Spot, Crown Rot, Melting-Out, Fusarium Blight, Pink Snow Mold, Gray Leaf Spot, Leaf Smuts, Summer Patch, Take-all-patch, Cercospora Leaf Spot, Blossom Blight, Fabraea Leaf Spot, Diplodia Tip Blight, Petal Blight, Twig Blight, Fruit Blight, Ascochyta Blight, White Rust, Scab, Needle Rust, Rhizoctonia Aerial Blight, Fabraea Leaf Spot, Didymellina Leaf Spot, Fusiform Rust, Ovulinia Petal Blight, Entomosporium Leaf Spot, Poinsettia Scab, Black Rot, Postbloom, Bloom, Shothole, and Brown Rot. |
Application Equipment | Backpack Sprayer, Hose End Sprayer, Pump Sprayer |
Application Methods | Broadcast Spray, Spot Treatment |
Active Ingredient | Myclobutanil 19.7% |
Product Type | Fungicide |
Formulation | Suspended Concentrate |
Application Rate | Apply 1 to 2.4 fl. oz. of Eagle 20EW Specialty Fungicide per gallon of water per 1,000 sq. ft. of non-residential turfgrasses. For residential turfgrass, use 1.2 oz. of product per gallon of water per 1,000 sq. ft. |
Shelf Life | Eagle 20EW Specialty Fungicide can last up to 3 years when stored in a cool, dry location. |
Yield | A 16 oz. bottle of Eagle 20EW Specialty Fungicide can produce 53 to 128 finished gallons of product when using the 1 to 2.4 fl. oz. rate per 1,000 sq. ft. |
Use Sites | Outdoors |
Time to Kill | Eagle 20EW Specialty Fungicide takes up to 14 days to control diseases. |
Comparable Products | Myclobutnil 20EW |
EPA Registration # | 62719-463 |
Restricted Use | No |
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Shipping Restrictions | AK, CT, HI, MI, NY, OR, RI, SC |
Availability | Online |
Signal Word | CAUTION |
Keith's Pro Tip | "Eagle 20EW does a great job of preventing turf diseases from taking hold on your plants. Apply using a 10—to 14-day application schedule to protect your plants all season long." |
Target Pests Multi | Anthracnose, Ascochyta Blight, Black Rot, Bloom, Blossom Blight, Brown Patch, Brown Rot, Cercospora Leaf Spot, Copper Spot, Crown Rot, Didymellina Leaf Spot, Diplodia Tip Blight, Dollar Spot, Entomosporium Leaf Spot, Fabraea Leaf Spot, Fruit Blight, Fusarium Blight, Fusiform Rust, Gray Leafspot, Large Patch of Zoysia, Leaf_Smut, Leaf_Spot, Melting Out, Necrotic Ring Spot, Needle_Rust, Ovulinia Petal Blight, Petal Blight, Pink Snowmold, Postbloom, Powdery Mildew, Red Thread, Rhizoctonia Aerial Blight, Rust, Scabs, Septoria Leaf Spot, Shothole, Spring Dead Spot, Summer Patch, Take-all Patch, Twig Blight, White Rust, Zonate Leaf Spot, Zoysia Patch |
Time to Kill | Eagle 20EW Specialty Fungicide takes up to 14 days to control diseases. |
Chemical Type | Fungicide |
Formulation | Suspended Concentrate |
Application Methods | Broadcast Spray, Spot Treatment |
Product Drawbacks | Eagle 20 EW is a suspended concentrate and thus it may require repeated agitation while spraying. |
Active Ingredient | Myclobutanil 19.7% |
Application Equipment | Backpack Sprayer, Hose End Sprayer, Pump Sprayer |
Mix Rate | Apply 1 to 2.4 fl. oz. of Eagle 20EW Specialty Fungicide per gallon of water per 1,000 sq. ft. of non-residential turfgrasses. For residential turfgrass, use 1.2 oz. of product per gallon of water per 1,000 sq. ft. |
Use Sites | Outdoors |
Yield | A 16 oz. bottle of Eagle 20EW Specialty Fungicide can produce 53 to 128 finished gallons of product when using the 1 to 2.4 fl. oz. rate per 1,000 sq. ft. |
EPA Registration No. | 62719-463 |
Shelf Life | Eagle 20EW Specialty Fungicide can last up to 3 years when stored in a cool, dry location. |
Comparable Products | Myclobutnil 20EW |
Children or pets? | No |
Property Characteristics | None |
*Price does not include freight. We guarantee our rate plus shipping will be less than anyone else's price.