Chlorothalonil (Bravo/Echo/Equus) is a FRAC M5 fungicide that is well known for its ease of use as a stand-alone product or tank mix partner for protecting against a range of pathogens of vegetable crops. Some examples of uses of chlorothalonil fungicide for disease control includes Alternaria leaf blight and fruit rot on tomato, late blight of tomato, Anthracnose ripe fruit rot of tomato, Cercospora and/or Septoria leaf and petiole blight of celery, Alternaria and Cercospora leaf and petiole blight of carrot, purple spot of asparagus, purple blotch in onions, garlic, and leeks, and Alternaria blight of cucumbers, squash, pumpkins, and melons. In addition to these disease examples, chlorothalonil has been important as a tank-mix partner for fungicides targeting downy mildew.

Due to its multiple modes of action, this product can be used repeatedly and sequentially. In times of shortage, other fungicides are available and can be selected to ensure vegetable crops remain protected. Michigan State University Extension recommends paying attention to FRAC codes when deciding on an alternative broad-spectrum fungicide.


If your lawn or landscape area has encountered a fungal disease, it can turn from a small blemish to a large ugly eyesore that could kill your plants if you don’t intervene. This is when a fungicide may be necessary to implement on your lawn to kill off the fungus and to make sure it doesn’t spread further. A fantastic product that can effectively control disease and fungus is Chlorothalonil.

On this page, we will give you some background of Chlorothalonil and explain how it works so well to eliminate fungus and disease. Here you can also shop the top fungicide we recommend which contains Chlorothalonil.

Features of Chlorothalonil Fungicide

Chlorothalonil is a fungicide used to control fungi that grow on trees, vegetables, turf, small fruits, ornamentals, and other crops. It also controls mold, mildew, algae, bacteria, and fruit rot. In addition, Chlorothalonil can be used to control certain pests like mites and ticks and can be used to protect wood.

First registered to the EPA in 1966, Chlorothalonil is used mainly in agricultural settings and is regarded as one of the top used fungicide active ingredients in the US, alongside Sulfur and Copper. Chlorothalonil comes in a variety of different formulations such as a dust, dry or water-soluble granules, a wettable powder, a liquid concentrate, fogging concentrate, and a dip.

Mode of Action

The mode of action of Chlorothalonil is by interfering with the enzyme systems of the fungus to the point that it is unable to perform essential functions related to its growth so it eventually dies. 

Uses/benefits of Chlorothalonil Fungicide

Chlorothalonil is an effective fungicide for lawns and has a broad label. It protects against common diseases like Dollar Spot, Brown Patch, Leaf Spot, Anthracnose and more. Use Chlorothalonil to protect vulnerable plants on a variety of treatment sites like golf courses, nurseries, lawns and agricultural areas. 

Chemical Action and Usages: 

Chlorothalonil is a organochlorine fungicide that is available in several different formulations and sold under the trade names of Daconil, Bravo and others. This fungicide gives broad spectrum control of vegetable, flower, fruit and ornamental diseases including but not limited to anthracnose, leaf blights, downy mildew, powdery mildew, leaf curl, scab, black spot fusarium leaf spot and many other diseases. It is not systemic; therefore it must be reapplied regularly during the growing season. If used on food crops, consult the product label for the appropriate harvest waiting period after applications.


Read the label carefully of the brand and formulation you have selected. Apply the product according to the directions on the label. Do not apply to water or in areas where drift/runoff will cause contamination to any pond, lake or stream.

Prices of Chlorothalonil Fungicide


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