Lawn Disease Diagnosis


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Lawn Disease Diagnosis

Lawn Disease Diagnosis Lawn fungus problems are caused by humans. Believe it or not 99% of lawn funguses are caused by improper watering and improper cultural practices.

Necrotic Ring Spot Fungus (NRS) for example is a lawn disease that is a symptom of dead soils, which is caused by severe over watering for a long period of time.

Ascochyta leaf blight fungus is a lawn fungus that is a symptom of shallow digging roots and is typically caused by shallow and frequent lawn watering.

Insect pressure and lawn diseases are always a symptom of a bigger problem with the lawn care practices. Proper identification of the fungus or lawn problem is the first step in recovery. Many times a lawn will have a brown spot that the homeowner might think is a lawn fungus, but it is often just poor sprinkler coverage.

Organo-Lawn is a firm believer that if the lawn problem is not a lawn fungus and is only suffering from a watering problem and can be corrected with a sprinkler audit, then we will NOT sell our customer unnecessary services such as fungicides or insecticides. If the lawn problem is actually a lawn disease we will start by properly identifying the lawn disease and explain to our customer what is the cause of the lawn disease. We will then make recommendations and changes to the lawn care practices to correct the cause of the lawn problem. If corrections are made the lawn fungus problem will not return in the future.

All our lawn care technicians that perform disease diagnosis' are done by a highly trained and often state licensed lawn care professional. He or she will closely inspect the lawn and give an analysis of your lawn's overall health and potential, evaluate any damaged or problem areas and make recommendations to repair the problem area and prevent the lawn problem from reoccurring in the future.

The most common lawn diseases in Colorado, especially the Boulder, Arvada, and Fort Collins areas, are necrotic ring spot fungus (too much water) or ascochyta leaf blight fungus (short roots). You can read more about these lawn diseases and what is causing them to occur by clicking on the links or calling our offices in Boulder (303) 499-2000 or Fort Collins (970) 225-9425.

The lawn disease diagnosis includes the following analysis:
  1. Identification of the Predominant Grass Type
  2. Identification of Problem Grasses
    a. Controllable-i.e.Crabgrass, Foxtail, Barnyard Grass
    b. Uncontrollable- i.e. Tall Fescue, Bentgrass
  3. Measurement of the Thatch Level
  4. Weed Identification
    a. Dandelion, Clover, Kosha, Mallow, Plantain, Thistle, Bindweed, Spurge, Oxalis, Wild Violet, etc.
  5. Measurement of Mowing Height
  6. Effectiveness ofLawn Watering
  7. Composition of Soil
  8. Measurement of Grass Root Depth
  9. Lawn Disease or Fungus Identification
    a. Lawn Disease or Fungus Management Recommendations
  10. Insect Identification
    a. Insect Management Recommendations
  11. Special Circumstances
    a. Drainage, Bare Spots, Sunlight, Hills, Traffic, etc.
  12. Lawn’s Present Condition
  13. Lawn's Potential
  14. Specific Recommendations of the Licensed Professional


As soon as possible after the problem is noticed.

Lawn Diagnosis

Lawn diseases and lawn funguses are often difficult to diagnose properly. Never apply any lawn fungicides or lawn insecticides prior to a professional disease diagnosis. Applying lawn fungicides or lawn insectices can cause the problem to become worse.