Fungus and Disease Articles

Those brown circles in your lawn that look like alien crop circles are caused by a soil-borne fungus that when conditions are perfect will attack the leaves of your St Augustine lawn. The common name for the disease is Brown Patch. Brown Patch is a cool weather fungal disease that can cause cosmetic damage but rarely kills St Augustine turf grass lawns.

Sugarcane Mosaic Virus (SMV) is infecting lawns in Pinellas County. Mild to moderately infected lawns often recover and return to their natural beauty. The most impacted areas are south of 38th Ave N and concentrated along the coastal areas.

Mushrooms growing in the lawn do not indicate you have a lawn disease or fungus in your St Augustine grass lawn. It means you have mushrooms - the flowering structure of fungi. Fungi are beneficial to the lawn by composting organic matter into plant food for the lawn.

During the cooler weather in Pinellas County, homeowners may see tannish crop circles in their lawn. Most likely those are caused by brown patch - a cool-weather disease. Brown patch forms perfect circles or lobed circles where individual circles have joined other circles. Many believe brown patch is caused by overwatering – it is not. Learn why.

Small tan or straw-colored spots in your St Augustine grass lawn is Dollar Spot. They can be a few or many and make the lawn appear blotchy or spotted. Dollar spot signals your lawn is ready for a feeding

Fairy Rings are those dark green circles in the lawn with large white mushrooms growing along the outer edge.