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Gray leaf spot (GLS) is a foliar fungal disease that affects grasses. In grasses other than maize it is caused by Pyricularia grisea , which only infects perennial ryegrass , tall fescue , and St. Augustine grass in places with warm and rainy climates.
St. Augustine grass is commonly used in South Florida because it is a warm-season grass that grows well in neutral soil, and can tolerate partial shade as well as full sun, said Marco Schiavon, an ...
According to Mayer, "Regularly raking leaves helps your lawn breathe and stay healthy [by] allowing sunlight and air to penetrate the lawn canopy, preventing disease and promoting grass growth."
The disease most commonly associated with the panicum mosaic virus pathogen is St. Augustine Decline Syndrome, which infects species of turf grass and causes chlorotic mottling. [2] In addition to St. Augustine Decline, panicum mosaic virus is responsible for chlorotic streaking and mild green mosaicking in select cultivars of switchgrass and ...
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St. Augustine is a dark green grass with broad, flat blades. It spreads by aboveground stolons , commonly known as "runners", and forms a dense layer. The grass occurs on both sides of the Atlantic Ocean , [ 1 ] including much of the southeastern United States, Texas, [ 2 ] [ 3 ] Mexico, and Central and South America. [ 1 ]
Pythium disease, also known as "Pythium blight," "cottony blight," or "grease spot," is a highly destructive turfgrass disease caused by several different Pythium species. All naturally cultivated cool-season turfgrasses are susceptible to Pythium and if conditions are favorable to Pythium it can destroy a whole turfgrass stand in a few days or less. [1]
Here's a handy guide for diagnosing and treating your lawn's post-summer damage.