Common Lawn Fungus in Florida:
- Brown patch fungus. Landscapes with St. Augustine or Zoysia grass are particularly susceptible to brown patch fungus, which develops when high levels of heat combine with significant moisture. Look for it in the summer and fall, when heat, humidity, and rainfall are at their highest.
- Gray leaf spot(image shown). When gray leaf spot takes hold, the grass blades develop brown spots that may have velvety patches. It’s caused by overwatering and, once spread, causes grass to become thin and patchy.
- Rust fungus. Does your lawn look like it’s been left out to rust? That orangey powder is a fungus that leaves your landscape vulnerable to other lawn diseases. Over-watering is a primary cause of rust fungus; it’s particularly vicious in shaded areas where water doesn’t evaporate as quickly.