Yellow powder on grass
Your grass is dieing
I think Weather is the main reason .
weed killer has turned my lawn yellow
because it is DRYING!
If it is yellow, or brown, you should water them more. The best times are right after the sunset or early in the morning because the sun may evaporate the water before the grass gets it.
If a black sheet of plastic is laid on the grass, the grass will turn yellow because the the starch produced in the grass gets consumed up . since no sunlight is available to the plant to produce more starch,it will gradually start turning yellow. ;-) ---------------------- The loss of green coloration equals the loss of chlorophylls, which is the result of the plant putting chlorophylls in storage when sun light is absent.
it is turning yellow because people r peeing on it
There are many products that can help you replace the nutrients that the grass is losing and causing yellow spots. You can also rip up the yellow grass and put down grass seed.
Your lawn can go yellow for a varity of reasons. like when objects are placed on it the grass starts lacking sunlight and goes yellow. or lack of water, too much pesticide or moles. maybe its not getting enough sunlight. Animal urine won't help either. If it starts going yellow water it or use lawn feeds. cutting grass does have a very harmful effect somtimes as when you cut it, it will lose a lot of moisture. so after cutting water it and or use lawn feed. Grass can recover.