If you notice your green lawn slowly turning into a bed of yellow grass, it may be doing so for a couple of reasons.  According to turf care company Cologne Minnesota experts, certain nutrient issues and plant disease are the usual suspects.  For instance, a lack of nitrogen and iron could cause that yellow smear as well as fungal infections.  Here are some ways to keep that lawn green and fresh.

Look at Pattern

yellow lawnExamine your lawn and take note if the yellow smear appear in a circular fashion or is it disseminated all over the lawn.  If there is a distinct pattern noted, this may be attributed to a plant disease known as Summer Patch or Rhizoctonia Patch a fungal infection.  Treat the lawn by applying a fungicide to kill the pores.  It is also recommended to water the grass less and ensure there is adequate soil drainage and soil aeration.

Iron Deficiency

In some cases, the cause of yellowing lawn is due to a nutrient deficiency such as lack of iron.  Lawn care service Crystal Bay MN experts recommend chelated iron or iron sulfate to correct the deficiency.  Typically, grass blades streaked with yellowish hue imply lack of iron nutrients. For most cases, just spray the iron directly onto the grass.

Peat Moss

If you want a healthy lawn peat moss can help turn your grass a lushful green in no time. Root rot problems respond very well with peat moss application.  Grass with this problem have both green and yellow grasses mixed together.  To treat it properly, apply one to two bales of peat moss per 1000 square feet of lawn to the affected portions and then water until it is wet.


Do not forget to apply a nitrogen-iron preparation to ensure you got all the bases covered.  Grass blades with this problem have totally yellow blades without any mixture of striping within.

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