Seasonal Lawn Fungus Threats

The seasonal lawn fungus threats are at their peak in Spring and Fall when nights are cool and humidity is high here in Northeast Florida.  A good lawn fungus application is recommended. There are natural solutions such as baking soda and neem oil but rarely do lawn care pest control companies go that route for commercial applications.

A well-maintained lawn is the best defense against most lawn issues. A healthy lawn is less susceptible to long-term fungal disease outbreaks. Plus, minor outbreaks may go away on their own as some die with seasonal temperature variations and increases or decreases in rain and watering. Those same variations in temperature, water supply, and nutrition put the poorly maintained lawn at greater risk of damage from disease when an outbreak occurs. To understand this better consider that a healthy body heals quicker than a sick one.

Dethatching and aerating the turf along with the proper type of fertilizer at the proper timing for fertilization improves turf disease resistance. Mowing the grass at the proper height with a sharp blade likewise reduces turf disease susceptibility. And no good deed goes unpunished as putting out that same high nitrogen fertilizer you were using earlier in the year will mostly grow weeds and forms of fungus in the Fall. Reduce the days and duration of watering in the fall and increase again in spring.

Lawn fungus appears in many forms including white, yellow and brown patches, multiple colored spots on the grass blades, a powdery or stringy coating on the grass and slick, slimy darkened colored grass. Whatever type of fungus you may have, know that it spreads by spores. So walking on it increases the risk of spreading the spores to other parts of your lawn.

There are two types of lawn fungicides, foliar liquids and granular systemic. The liquid is fast-acting with less residual benefit whereas the granular works its way up through the root system over time. For long-term treatment, alternate both modes of application foliar and granular since different fungicides absorb differently and build resistance to treatments.

For seasonal lawn fungus here at Earth Works we use and recommend a broad-spectrum fungicide that is available in both foliar and granular form by the brand name HeadwayG with azoxystrobin & propiconazole. This treats various brown patches, rust, ring spots, powdery mildew, blight, red thread, and root rot. Typically treat twice and fourteen days apart. The untreated fungus can spread and be very damaging to the lawn over time. So don’t mow when the fungus is present which would encourage its spread.

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Earth Works operates a retail Garden Center/Plant Nursery in Jacksonville and provides landscaping, hardscaping, water features, lawn care service, lawn spraying, and drainage solutions. Stop by our retail center or contact us online or by phone at 904-996-0712.

Earth Works proudly serves clients in Northeast Florida, including Jacksonville, Ponte Vedra Beach, Atlantic Beach, Neptune Beach, Jacksonville Beach, Nocatee, St. Johns, Fleming Island, Orange Park, Middleburg, Green Cove Springs, Amelia Island, Fernandina, and St. Augustine.

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  • Landscape Design & Installation
  • Paver Patios, Paver Walkways, Paver Driveways
  • Firepits, Retaining Walls , Seat Walls,
  • Landscape Lighting, Drainage design & Installation,
  • Lawn Care Services, Lawn Maintenance, Lawn Fertilization
  • Lawn Pest Control, Lawn Weed Control
  • Aeration and Top Dressing
  • Water Features, Koi Ponds,
  • Waterfalls, Bubbling Fountains
  • Garden Center & Pond Supply Store

General Services Areas

Jacksonville (Jax), Jacksonville Beach, Neptune Beach, Atlantic Beach, Ponte Vedra Beach, Ponte Vedra, Fernandina Beach, Amelia Island, Orange Park, St. Johns, Nocatee


12501 Beach Blvd
Jacksonville, FL 32246

(not open to the public)
St. Johns Bluff
1057 St. Johns Bluff Rd. N.
Jacksonville, FL 32225


Monday-Saturday 9-5
Sunday 10-5

New Year’s Day • Easter • Memorial Day
July 4th • Labor Day • Thanksgiving Day
Christmas Eve • Christmas Day

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