You are heredisease
Taken from a longer publication - See entire article here
August 27, 2012
Many areas in Georgia are experiencing warm, humid weather with frequent thunderstorms this month. This is the perfect weather for fungal leaf spot development in the landscape. Most leaf spots are benign and will not damage the plant.
Cercospora Leaf Spot of Hydrangea is an example of a leaf spot disease that commonly occurs during prolonged wet weather or under sprinkler irrigation. As with most leaf spots in the landscape, chemical treatment is rarely needed. Some leaf spotting and leaf drop will not the harm the plant.
Warm season turf has a difficult time in fall and spring making the transition from growing to dormant and back to actively growing again. We often see diseases in turf in spring and fall. Proper disease identification and control practices are important in managing turf disease. Here are some references that can help you with turf disease control.
Taken from Turfgrass Diseases in Georgia byAlfredo Martinez, Extension Plan
Gray leaf spot is a fungus disease that affects several turfgrasses. It is a mainly a problem on St. Augustinegrass and perennial ryegrass. Hot humid summer weather and high nitrogen levels can make turf susceptible to this disease.
Are you ready for another damaging disease that has the potential to kill trees? It seems there are new pest threats all the time: