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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 ...
Brown patch symptoms differ depending on the various maintenance practices performed on the turfgrass (mowing height, fertilizer, watering, etc.) Symptoms on turfgrasses that are wet for extended periods and are closely mowed will produce a distinctive gray-purplish bordered ring "smoke-ring" that is up to 50 cm in diameter. [3]
Turf melting out begins as black to purple spots on the leaf blades. These spots eventually appear on the leaf sheaths. The fungus then begin to move down and invade the crowns and the roots of the plants. From far away, the turf appears yellow or blackish brown. The colors that appear on the turf directly reflect the nitrogen levels in the ...
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.
Fusarium patch is a disease in turf grass settings also called pink snow mold or Microdochium patch. In many cool season grass species in North America, it is caused by the fungus Microdochium nivale. [1] The white-pink mycelium on infected leaf blades is a distinguishing characteristic of the Microdochium nivale pathogen. [2]
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Dollar spot is most commonly found on closely mowed turfgrasses. The pathogen infects most cool and warm-season grasses throughout the world, including creeping bentgrass (Agrostis stolonifera), annual bluegrass (Poa annua), Kentucky bluegrass (Poa pratensis), perennial ryegrass (Lolium perenne), hybrid bermudagrasses (Cynodon dactylon x tranvaalensis), seashore paspalum (Paspalum vaginatum ...