Grass Pad: Turf Disease Control for Home Lawns


Dollar Spot
Hot, humid temperatures can fuel turf disease in healthy turf. Being prepared and starting early, fungus spots are a lot easier to prevent than to cure. Shaded areas are of particular concern. Restricted air movement and humid conditions can stimulate turf disease rapidly. By applying granular Fungus Fighter now, we can protect the lawn before pathogens get into the plant and wreak havoc. Fungus Fighters allow a healthy lawn to outgrow many of the diseases that show up.

Grass Pad Fungus Fighter provides control of many important diseases in turf including but not limited to Kentucky bluegrass, annual bluegrass, fescue, rye, and zoysia grass.

Fungus Fighter is a broad-spectrum xylem systemic fungicide for the control of certain diseases in turf. Fungus Fighter works by interfering with the respiration in plant-pathogenic fungi, and is a potent inhibitor of spore germination and mycelial growth. The active ingredient moves rapidly into green tissue via transluminal and xylem movement. Roots of plants take up the active ingredient where it is translocated throughout the xylem of plants to provide internal inhibition of fungal growth and protect the plant from new infections. Fungus Fighter makes it an excellent choice as the foundation fungicide for turf management programs.


Slime Mold on Bluegrass
Bluegrass diseases show up in the form of a slime or dust that wipes off, or even a patch that seems to die overnight. Mow bluegrass shorter in the spring and be vigilant in the areas under trees or on the north that seem to hold the heavy dew longer in the morning. Mow the lawn shorter while it is cool, and rain is plentiful. In June, raise the mowing height and don't let the lawn dry out too much before starting the summer watering schedule. If fungus shows up apply fast acting liquid fungicide and follow up with granular Fungus Fighter one week later. If large areas die in the summer, add Stadium Special, perennial ryegrass, to your favorite blend of bluegrass this fall.

Related: Overseeding Fall Lawns

Fescue diseases can be a little more predictable than bluegrass. Expect fungus to show up as soon as the temperature and humidity added together reach 150, usually early in June. Applying granular Fungus Fighter every 21 days through mid-August should keep you ahead of the game. If fungus patches do appear or every other blade of grass is brown, apply liquid Fungus Fighter, then granular one week later. Be sure and overseed those areas in the fall. Use the newest varieties of fescue, like Heat Wave or Macho Mix to ensure the most up to date disease resistant varieties.

Give it a one-two punch. Certain fungal pathogens are known to develop resistance to products with the same mode of action when used repeatedly. Because resistance development cannot be predicted, the use of Fungus Fighters should follow resistance management strategies established for turf. Such strategies may include rotation with products having different modes of action or limiting the total number of applications per season. For more information on developing a resistance management strategy talk to our turf experts at your nearest Grass Pad location.

Related: More Summer Lawn Survival Tips