A call we often get here at JB Instant Lawn - "Why are there all these mushrooms in my new lawn and what can i do about it!"
While mushrooms are not necessarily a bad thing- they can be a blemish aesthetically in a new lawn and cause some frustration...
Mushrooms thrive in moist environments- so it makes sense that they are commonly seen in new lawns that require excessive water while getting established.
In addition- many lawns are planted on soils that have been blended with organic materials that carry a heavy fungal spore load that germinate under grow in conditions.
In almost all cases - mushrooms will slowly disappear with the change in watering schedule for established turfgrass.
In some rare and extreme conditions- if the fungus becomes a problem and causes damage to turf- a broad spectrum fungicide can be applied and is very effective in erradicating the fungus/mushroom issue all together.
The best approach - is usually to be calm and wait it out and know that the problem is a temporary one.
Before you know it - the mushrooms will be gone and you can focus on your lush new green lawn!