Note that turfgrass under stress is more susceptible to Dollar Spot than well maintained turf.
lawn management is the key to prevention and control.
a core-type aerator. (see Blog on core aeration.) This device pulls cylindrical plugs from thatch and soil, which allows penetration of water, air and nutrients into the soil, increasing root depth of the turf. Shallow, poorly developed roots that are susceptible to drought stress result from heavy thatch layers because water, air and nutrients cannot penetrate to the underlying soil and grass roots, resulting in and resulting overwatering that promotes Dollar Spot.
grass clippings are caught and removed.
● Timing of Watering is important because fungus spores need about 12 hours to germinate on wet leaves.
effectiveness in killing grubs is improved by removal of any thatch layer.
rotate fungicides targeted to individual applications. Fungicides are expensive, plus beneficial earthworms and helpful soil bacteria can be adversely affected by fungicide applications.
In conclusion, call Crabapple LandscapExperts to maintain beautiful lawns on your properties, or if you notice Dollar Spot in any areas.
http://www.caes.uga.edu/publications/pubDetail.cfm?pk_id=7149#DollarSpot and Colorado State University Extension C. E. Swift; photos courtesy of Penn State University, UGA Urban Agriculture