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Brandt TriTek (OMRI)
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Safe and Effective, TriTek is OMRI listed and meets, and even exceeds, most worldwide standards for agricultural spray oils.

Agri-Mycin 17
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A professional fungicide that offers long term protection to ornamental plants and fruits & vegetables from various diseases.

Monterey Bi-Carb Old Fashioned Fungicide
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A fungicide for the control of powdery mildew on fruits & fruit trees, herbs & spices, ornamentals, roses and vegetables.

Hi-Yield Calcium Nitrate
5 out of 5 stars (1)
Multiple sizes available
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A calcium nitrate that gives tomatoes and peppers able to fight against Blossom End Rot.

Agrisel BioPhos Pro Systemic Fungicide
5 out of 5 stars (3)
Multiple sizes available
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A professional systemic fungicide which effectively prevents and control plant fungal diseases.

Bonide Garden Dust
Multiple sizes available
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An all-natural insecticide and fungicide to control insects and disease on fruits and vegetables and may be used up to day of harvest.

OHP Chipco 26019 N/G Fungicide
5 out of 5 stars (1)
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A professional wettable powder fungicide that prevents and controls diseases on ornamentals in field, landscape, greenhouses and conifer nurseries.

OxiPhos Bactericide / Fungicide
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A professional fungicide that controls and prevents pythium, phytophthora, and downy mildew with a combination of phosphorous acid and activated peroxide.

SePRO Decree 50WDG
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A professional fungicide in the preventive control of botrytis on flowers, plants and other ornamental plants.

Daconil Action Flowable Fungicide
5 out of 5 stars (1)
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A professional fungicide for the control of turf diseases for sod farms, golf courses, athletic fields, and commercial and industrial buildings.

Bonide Citrus, Fruit & Nut RTS
5 out of 5 stars (1)
Multiple sizes available
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An all-natural dual purpose insecticide, miticide and fungicide for fruits, nuts and vegetables.

Monterey 70% Neem Oil RTS
Multiple sizes available
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Organic insecticide, miticide and fungicide for use on roses, vegetables, fruit trees and ornamentals.

OHP 6672 4.5 F Fungicide
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A professional fungicide that controls a broad range of ornamental diseases.

SePRO Camelot O
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A professional fungicide bactericide for growers that provides multiple ways in protecting vegetables in greenhouses and herb crops.

OHP Strike Plus 50 WDG Fungicide
5 out of 5 stars (1)
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A professional fungicide that prevents and controls foliar and stem diseases in ornamentals and other plants in nurseries and greenhouses.

Quali-Pro TM/C WDG
5 out of 5 stars (1)
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A professional water dispersible granule fungicide which provides systemic and preventative disease control on turf-grass and ornamental diseases.

Emerald Fungicide
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A professional fungicide that provides unprecedented dollar spot control in virtually every major turf species, and in every region of the United States.

Fame Granular Fungicide
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A professional granular fungicide that controls commercial & residential turf-grass & ornamental diseases in greenhouses, nurseries, golf courses and interiorscapes.

Garden Tech Daconil Fungicide Ready To Use
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A fungicide that kills and prevents more than 70 types of plant diseases for fruits, vegetables and flowers in a spray bottle.

Organocide 3-In-1 Garden Spray RTU
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Kills all stages of small, soft-bodied insects & certain fungal diseases.

Quali-Pro TM 4.5 Flowable
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A professional liquid fungicide that provides broad-spectrum control of foliar, stem, and below-ground diseases.

Terrazole L
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A professional fungicide that is an effective soil fungicide for golf greens and tees, nursery crops and ornamentals.

Concert II Fungicide
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A professional fungicide for control of diseases on golf course greens and tees, sod farms, nurseries and commercial landscapes.

Heritage TL Fungicide
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A professional broad spectrum fungicide that provides preventative and curative control of plant diseases for up to 4 weeks.


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. 

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 infections 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, but instead 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 antibacterial. 
  • Oils, like horticultural oils, are commonly used for insect control, but controlling insects can prevent the spread of diseases carried by insects like aphids. 
  • Bicarbonates (baking soda) have been used for many years and is 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, so using the wrong product can 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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