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It is common in sodded lawns, rapidly growing lawns, and lawns with layered soil (3). The pathogen produces circular patches of bald spots that are tan or yellow in color (12). These patches are about 5 to 10 cm in diameter, but can grow to be about 1 meter in diameter. Eventually, as the infected turf dies, the spots turn brown.
Pests: Insects like grubs can damage grass roots, leaving behind dead, brown spots. Chemical Damage: Using too many fertilizers, herbicides, or pesticides can end up harming your lawn and causing ...
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Early fall lawn care should include reseeding dead or thin patches in cool-season lawns. A mulch product embedded with seed and fertilizer is a convenient way to fill sparse patches.Prepare the ...
Brown patch is most common when night temperatures fail to drop below 68 °F and during extended periods of high humidity or prolonged leaf wetness. [5] The Rhizoctonia species has two specific fungi that affects the turf plant at different times of the year. In most cases Rhizoctonia solani will cause Brown patch in June throughout early July.
In coarse textured grasses maintained at taller cutting heights, the dead spots are larger and more diffuse. Spots are often seen in clusters. Dollar spot is readily distinguished from other turf disease by light-tan lesions with a reddish-brown border on the leaf blades of live plants near the edge of the affected area.
Magnaporthe poae is an ascomycete fungus which causes the turfgrass disease commonly known as summer patch, or Poa patch. [2] The disease occurs mostly on Kentucky bluegrass (Poa pratensis), Fescues (Festuca sp.), and on Annual bluegrass (Poa annua). [3] Bentgrass (Agrostis sp.) may also become infected but shows very few symptoms and quickly ...
Red thread disease is a fungal infection found on lawns and other turfed areas. It is caused by the corticioid fungus Laetisaria fuciformis and has two separate stages. The stage that gives the infection its name is characterised by very thin, red, needle-like strands extending from the grass blade.