Fungicide

Fungus can severely damage lawns, gardens, and crops if not treated quickly or prevented entirely. Fungicides have long been part of disease management programs in gardens, greenhouses, and golf courses. You can prevent fungus from damaging your lawn yourself using our professional grade fungicides. 

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Liquid Granular Wettable Powder
Eagle 20EW Specialty Fungicide Quick View
4.5 out of 5 stars (88)
$48.50
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A professional systemic, protectant and curative fungicide for turf-grass, ornamentals, greenhouse and nursery ornamentals, apples, stone fruits and grapes.
5 out of 5 stars (68)
$75.53
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A professional systemic fungicide for the prevention and control for turf-grass, annual and perennial flowers, bedding plants, foliage plants, ground covers, deciduous trees and shrubs.
4.5 out of 5 stars (25)
$38.87
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A professional systemic fungicide that provides preventive and curative control of diseases in turf-grass and ornamental plants.
4.5 out of 5 stars (2)
$36.23
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A granular fungicide that contains systemically protects against and cures turfgrass diseases.
5 out of 5 stars (13)
$44.42
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A broad-spectrum, systemic fungicide that provides exceptional control of over 25 turf diseases and over 30 ornamental diseases with extended application intervals of up to 28 days.
4.5 out of 5 stars (135)
$88.87
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A professional fungicide that is a systemic strobilurin fungicide in a granular formulation, and specifically for controlling diseases up to 28-days for turf-grass.
4.5 out of 5 stars (65)
$88.87
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A professional combination of two broad-spectrum, preventative fungicides with systemic properties that controls many turf-grass diseases.
4.5 out of 5 stars (79)
$55.53
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A broad-spectrum fungicide that provides excellent disease control on cool and warm-season grasses, trees, flowers, and shrubs.
4.5 out of 5 stars (21)
$94.42
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A professional systemic fungicide for the prevention and control diseases on turf and annual and perennial ornamental plants.
4.5 out of 5 stars (11)
$38.08
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A granular systemic fungicide for diseases on lawns, annual and perennial flowers, plants, ground cover and evergreen shrubs and trees.
5 out of 5 stars (8)
$77.76
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A professional fungicide that controls many turf diseases on golf courses, commercial and residential turf.
4.5 out of 5 stars (15)
$32.16
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A natural fungicide that is approved for organic gardening, flowers and lawns for powdery mildew and other diseases.
5 out of 5 stars (5)
$32.89
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A fungicide with zinc for a broad spectrum of disease control on ornamental plants, trees and vegetables.
4.5 out of 5 stars (42)
$33.49
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An insecticide, Fungicide and Miticide that provides control of insects and mites along with a fungal diseases and is OMRI Listed for fruits, vegetables, flowers and shrubs.
4 out of 5 stars (4)
$95.98
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A biological fungicide that controls a wide range of bacterial and fungal diseases in plants.
5 out of 5 stars (16)
$26.73
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A systemic fungicide for lawns, flowers, rose bushes, shrubs and trees that controls many diseases for up 4 weeks.
4.5 out of 5 stars (12)
$31.24
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A OMRI certified fungicide and insecticide that kills all stages of soft-bodied insects and certain fungal diseases for lawns to gardens.
4.5 out of 5 stars (25)
$35.53
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A systemic fungicide that will control plant diseases such as Pythophthora, downy mildew, pythium, black spot, root rot, anthracnose, and more.
5 out of 5 stars (6)
$32.74
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A multi-purpose fungicide that controls leaf spots, rust, blights and more on roses, trees, shrubs and vegetables.
4.5 out of 5 stars (6)
$22.90
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An insecticide and fungicide unique to roses, shrubs, flowers, fruits, and vegetables and may be used as a dust or a wettable spray on home lawns and gardens.
5 out of 5 stars (9)
$37.42
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A liquid systemic 9-14-9 fertilizer, fungicide and insecticide that controls all the areas for Roses, shrubs and flowers.
5 out of 5 stars (6)
$99.98
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A new professional fungicide with 2 active ingredients for a full spectrum of preventative and curative control of turf-grass diseases.
4 out of 5 stars (5)
$31.35
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Multiple sizes available
A systemic insecticide and fungicide that is rainproof with a 30 day protection from insects and diseases on flowers, shrubs and trees.
4.5 out of 5 stars (10)
$32.76
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Multiple sizes available
A multi-purpose Insecticide, Fungicide and Miticide for fruits and vegetables along with flowers, shrubs and turf-grass.

Lawn & Garden Safe Fungus & Disease Control Products

Fungicides have long been part of disease management in gardens, greenhouses, and lawns. In do it yourself lawn care, lawn diseases and garden diseases can be difficult to control and get rid of, and fungus-based diseases are no different. Since it can be tricky, knowing more about fungicides, how they work, and how to use them can help you choose the best product for your needs. Read our guide on how to use fungicides to learn more about choosing and applying a fungicide.

To take the guesswork out of preventing disease in your lawn, check out our new lawn box subscription program. 

Here are the top five lawn diseases and how you can identify, inspect for, treat, and prevent them:

Fungicides for Disease Control

Fungicides are chemicals or ingredients that inhibit the growth of fungi on plants. There are many different active ingredients that help to achieve control, and different ingredients will work for certain plants and certain diseases. The types of diseases fungicides control include rots, spots, and rusts, among others and you can use fungicides to treat lawns (turf & grass), gardens, and other plants, even indoors. Fungicides only help manage some plant diseases and will only work on infectious plant diseases if the disease is truly caused by fungi. 

Types of Fungicides

Fungicides come in a wide variety of applications, from liquids to granules and organic to commercial and can be systemic or contact. 

Systemic Fungicides: A type of fungicide that moves through the plant to provide post infection treatment. Not all systemic fungicides will flow through the entire plant; some will only treat certain parts.

Knowing that there are different kinds of fungicides, it can be difficult to choose the right product for your needs. There is a long list of chemical ingredients to control fungus. Natural or organic formulations commonly contain sulfur, copper, oils, and bicarbonates as the active ingredient:

  • Sulfur is commonly used to prevent powdery mildew, black spots, and rusts and must be applied as a preventative. 
  • Copper can damage plants but a copper sulfate with lime mixture (Bordeaux mixture) makes it safer for plants as well as working as an antibacterial. 
  • Horticultural oils are commonly used for insect control, and controlling insects can prevent the spread of diseases carried by aphids and other pests. 
  • Bicarbonates (baking soda) have been used for many years and are very effective when combined with oils.

Using Fungicides

The most important part about using fungicides is choosing the right one for both the disease you need to treat and the plant with the disease. Identifying the plant disease can be very difficult. If you’re not sure, contact your local extension office or master gardener for help. The product must be applied at the right time of year and frequently enough to see results. Using the wrong product could result in the disease being left untreated or damage to the plant. Keep these things in mind when using a fungicide:

  • Always check the product label to ensure the plant you wish to treat is listed.
  • The rates and doses listed on the product must be followed. If the product is not working, do not increase the dose or rate; you may have chosen the wrong product and over-applying will damage the plants. 
  • Fungicides are very effective preventatively. Once the pathogen has entered the plant tissue, it can be very hard to get rid of it.
  • Many formulas are contact fungicides, which means they will only protect what it has come in contact with. You must ensure the entire surface of the plant has been treated with the product. Any time the product degrades or the plant outgrows the application, the plant is no longer protected.
  • You will most likely have to reapply the fungicide in 7-14 day intervals over the growing season due to weathering and chemical breakdown.

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