Chapter 3 Part 2- Turfgrass Diseases

Organize these options into the right categories

Groups:

(a) Brown Patch

,

(b) Take-all root rot

,

(c) Fairy Ring

,

(d) Gray Leaf Spot

• Lives in thatch. Spreads through roots and stolons

• Primarily St. Augustine and Bermuda

• 
• St. Augustine grass, spring and early summer. Includes tan lesions w/ purple/brown spot

• Spring/Early Summer or stressed such as drought

• Circle has water repelling effect

• 
• 
• 
• Ring noticeable in Spring and Summer.

• Occurs in Spring and Fall

• Infects Roots, sheaths and stolons

• Primarily effects St. Augustine and Zoysia

• 

Organize these options into the right categories

Groups:

(a) Dollar Spot

,

(b) Spring Dead Spot

,

(c) Rust

• Bentgrass/Hybrid Bermuda/Zoysia at risk

• Bermudagrass

• Bluegrass, ryegrass and zoysia effected

• 
• 
• slow bermudagrass recovery in midsummer

• 
• Spring and Fall fungus prefers dry soils

• dead circular areas less than a foot in spring

​ Proper watering includes watering in the

Another cultural method to help manage your yard is to rake up ______ , which is the dead grass that is left in the turfgrass.

When trying to prevent or to manage turfgrass diseases it may be helpful to apply a ___________

• fungicide

• herbicide

• insecticide

• rodenticide

True or False: Cultural practices such as proper irrigation, mowing height, and nitrogen application can greatly affect large (brown) patch

• True

• False

Where does fungus that causes take-all root rot live?

• in the air

• in the soil

• in the water

• on mowers

In addition to dark green rings, what does fairy rings often produce?

• mushrooms

• moss

• mildew