We touched upon lawn fungus in last month's edition of Timely Tips. This month we want to show you what to look for and how to identify a fungus in your lawn. Lawn fungus is brought on with high humidity and warmer temperatures. Oftentimes drought stress or insect damage can be mistaken for lawn fungus so you want to be sure you are properly diagnosing the problem. Some of the most common summer lawn fungi are red thread, summer patch, dollar spot, brown patch, leafspot and stripe smut. Below are some identifying signs of these diseases.
Red Thread - Bright red thread-like strands appear near grass tips or the cut surfaces of the grass blades.
Summer Patch - Yellow patches approximately 6-12 inches in diameter that form rings around healthy grass plants.
Dollar Spot - Straw colored patches about 2-3 inches in diameter with bleached centers and orange borders.
Brown Patch - Circular, yellow-brown patches of discolored, wilting and dead grass.
Leafspot - Oval, purple spots appear on the grass blades along with some yellowing and thinning of the overall turf.
Stripe Smut - grass blades become pale green and stunted with long, black stripes of spore pustules, infected leaves curl, die and become shredded.
Use Jonathan Green Lawn Fungus Control to take care of over 20 diseases including the ones listed above. If your lawn has a history of lawn fungus it is good to apply Lawn Fungus Control as soon as possible to prevent any future damage.
Be sure to visit your local county extension agency website for more information on diseases that may be affecting your area. To find your local agency visit www.csrees.usda.gov/Extension.