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Fungicides | Diseases

There are three main types of fungicides and each has its advantages. The Granular type is spread over the lawn and take a little longer to work and some infestations require a longer acting product. Some are powders, which can be mixed with water and applied through a sprayer. Liquids are also used in the water sprayer method.

List of Common Fungicides:
Generica and trade names of common turfgrass fungicides

All three usually work for up to two weeks depending upon the amount of water that the lawn receives. All fungicides are either contact or systemic. Contact simply means that it has to come in contact (touching) the blades of grass thoroughly and works fairly fast.

Systemic means that the fungicide enters the up through the root system and poisons the fungus from the interior. Since some infestations are seasonal occurrences it is best to apply theses a couple of weeks ahead of the yearly visitations, thereby halting the problem before it starts. Once again you have to be familiar with your lawn grass and the problems it can incur.

Rates and the times to apply a product are important and reading the label is a first not last thing to do.

The common sense approach in choice of method can be explained like this; if it is raining a lot then don’t use the sprayer method because it will all wash off. If it is really dry and you can’t water the lawn and rain isn’t on the way then granules probably won’t dissolve and get into the root system.

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