Fungicides have long been part of disease management in gardens, greenhouses, and lawns. Lawn and garden diseases can be difficult to control and get rid of. 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.
Fungicides are products that stop fungi from forming. There are a variety of different active ingredients to achieve control for certain plants and diseases. Fungicides come in a wide variety of liquids and granules. They also come in organic and commercial and can be systemic or contact.
Systemic fungicides move through the plant to provide treatment after it has been infected. Some will only treat certain parts of the plant.
Many formulas are contact fungicides, meaning they will only protect what it has come in contact with. Make sure the entire surface of the plant has been treated. Any time the product degrades or the plant outgrows the application, the plant is no longer protected.
Fungal control products should be applied once every other week, for three or more applications. This means you will have to re-apply the fungicide in 7 to 14 day intervals over the growing season. The reason for this is weathering and chemical breakdown. 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. Over-applying will damage the plants and possibly kill it.
Most fungi need a specific chemical to gain control. Be sure to identify which fungus you have before purchasing a control product to treat your lawn.
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