|
Lawn Diseases
Turf
diseases can be serious when weather and/or lawn management favor disease
development. Plant diseases, including the common lawn diseases described in
this publication, develop when several conditions occur simultaneously and
persist. Fungi, the most common cause of lawn diseases, are microscopic,
thread-like organisms that spread by means of air- or water-borne spores. The
spores function like seeds, producing new infections whenever the environment is
favorable for a period of time and the host is susceptible. Disease develops
when the pathogen (fungus) is present on a susceptible host (bluegrass) in a
favorable environment (temperature, moisture/water, light, nutrients, and stress
factors).
Lawn diseases are not always easy to diagnose. Some key factors and symptoms to
help recognize disease include: size and shape of dead and dying plants,
specific spots on leaves, quality of root system, leaf color and growth
characteristics, time of year, and temperature when disease developed. When
diagnosing a lawn disease it is helpful to have a record of treatments such as
fertilizer, herbicides, mowing height and frequency, watering frequency and
amounts.
Grass disease can ruin a lawn's appearance. However, good turf management
practices usually are adequate to prevent serious damage. Integrated cultural
practices for turf management and pest control will limit the need for
fungicides. Disease development often is associated with the lack of proper
application of these turf management practices: 1) selection and planting of an
adapted grass variety, 2) sufficient water at the correct time, 3) timely
fertilization with the right amounts and balanced nutrients, 4) regular mowing
at the recommended height, 5) provision for adequate sunlight and air movement,
6) maintenance of good soil aeration and drainage, and 7) thatch management.
Lawn King, LLC performs turf
disease scouting when we perform each fertilizer application. If there is a
problem, we will inform you as to the type of disease, the severity and if
treatment is required. Of course, as a team, (you and I) if you notice a
problem, you should contact us immediately. |
