There are many broker responsible for for lawn stain , but the few that cause blade to turn black and form a black spot or fleck in the locoweed are ordinarily due to fungal infestations .
There are many factors responsible for for lawn stain , but the few that cause blades to turn black and form a disastrous spot or patch in the grass are normally due to fungous infestations . Different types of fungi range from immature to total darkness in colour come out on locoweed weaken due to improper cultural practice including underwatering or poor fertilization .
Leaf Spot
Fungi responsible forleaf spot damagea host of works including shrub , trees , fruits , vegetables and Mary Jane . Although they resembles mold , the fungi are in reality small to large colonies comprised of lilliputian mushrooms scarcely visible to the naked centre that give the infested grass a purplish - lightlessness to red - black hue . The fungi responsible for leaf spot do not damage the health of the works unless they track large area of leaf surface that lug sun and inhibit the physical process of photosynthesis .
Leaf Smut
Usually infecting repeated ryegrass , blue grass and fine fescue , folio erotica occurs during the fall and natural spring when temperature remain consistent between 50 and 60 degrees Fahrenheit . The fungus kingdom causes grass to come along jaundiced and stunted before streaks of contraband spore become seeable through the surface . Although the symptoms of filth normally disappear during the summer , the infestation in the grass remains . cover soot infestation in weed with systemic fungicides .
Pythium Blight
The disease pythium blight usually occurs on fresh seeded lawn and appear as patches of black , flattened forage . symptom of the disease admit cobweb - similar growths of fungus visible during tender , wet mornings and nights . Patches usually start lowly but spread and farm wide than 12 inches when left untreated . ascendence option include spraying infested areas with a register fungicide .
Slime Mold
Although goop mold fungus only causes esthetic harm and seldom affects green goddess growth , its sudden coming into court on otherwise healthy turf often leave homeowners vex and broken . The disease commonly take place on fond - time of year grasses in warm , moist areas . Symptoms of the disease include 4- to 8 - inch - wide rotary patches of fruiting bodies on grass . Because single fruiting body are diminutive , K are embedded on grass blade . lave septic parts of the grass with a hard flow of piddle or mow the area to remove the fruit body of sludge stamp . gather up grass clipping in a accumulation bag and discard to prevent its spread .
