I have read how great it is to leave grass clipping on the ground for soil nutrients. We pick up our grass clippings and still have too much thatch. What are we doing wrong?
Thatch is actually not caused by lawn clippings. This is a common misbelief. It occurs when dead material builds up from the bottom of the lawn, rather than the top. Common causes of thatch are overwatering or overuse of high nitrogen fertilizer or mowing the blades to short.
I would recommend taking a look at how you are caring for your lawn. Is it possible that you are unintentionally doing one of these things?
I have a few brown spots in my yard, but they also look like someone had spilled some gas or something that look like burnt tips along grass blades. Do I possibly have grubworms?
It sounds more like you may have a fungus. This article may help you figure out which one: https://www.gardeningknowhow.com/lawn-care/lgen/grass-fungus.htm
Can a fungus be brought into a property by a mowing service that mows other lawn where the fungus resides?
Yes! It's possible to transfer the fungus from one lawn to another with mowing equipment, as well as one's shoes, from infected lawns that have recently been cut. For instance, Pythium is a fungus that can literally wipe out a lawn over night and is transferred by mowers. If you hire an outside maintenance service, you may want discuss with them the precautions they take to avoid the spreading of disease.
I agree that Fungus can spread from one to another lawn and even it is hard to remove if you have no information regarding it.
Yes, but your lawn must have the right conditions inorder for it to grow.
The 'usual' reasons do not apply. Good drainage, no shade, no organic stuff on lawn. HELP!! Our lawn is the only one on our block that looks like this! I haven't been able to talk to the gardener to see if any other of his customers have similar problems. What do you suggest?
Your mushrooms may be caused by a neighbor's yard. The mushrooms you see in your yard are the fruits of a mushroom fungus. These fungi have systems that can literally be miles wide, though in most cases they are a few yards wide. If your neighbor has a yard where mushrooms may flourish, it may be spilling over and fruiting in your yard. Think along the lines of an apple tree that they may have planted in their yard but whose branches and fruit fall into your yard.
Treat your yard with a fungicide to kill the branches that are in your yard. This may be enough to keep it from your yard in the future if the conditions in your yard are not favorable for mushroom growth.
I recently fertilized my yard. It looks great and has never been greener. However, mushrooms are popping up all over. How do I get rid of them? I have no water or shade problems.
Try dethatching the lawn. That contributes to mushroom growth. Here is more information, if you have not read the article yet: https://www.gardeningknowhow.com/lawn-care/lgen/eliminate-mushrooms-in-your-lawn.htm
It could be your lawn is getting too much water or watering too late in the day.
I have an area of about 40' x 60' that is shaded by a couple large maple trees. Also, most of this area is extremely wet in the spring time, or when we have a lot of rain through the summer. In fact, I often have standing water over much of the area.
It is likely that grass will not grow in those conditions. I would consider creating a rain garden to help drain off the standing water (https://www.gardeningknowhow.com/special/spaces/rain-garden-design.htm) and then once the area is drier, plant a shade tolerant grass (https://www.gardeningknowhow.com/lawn-care/lgen/shade-tolerant-grass.htm)
These articles may also help:
https://www.gardeningknowhow.com/lawn-care/lgen/growing-grass-shade.htm
https://www.gardeningknowhow.com/ornamental/trees/tgen/tips-for-growing-grass-under-a-tree.htm
Tile area first to promote proper drainage, next make sure that your problem isn't from shallow root system from your trees depriving grass of vital nutrients.
If your trees are the problem than you probably will not be able to grow grass without removal or thinning of your trees to allow sunlight in.
If this is not an option have a soil test done to determine PH
Plant a shade tolerant grass
I removed some large trees and the lawn around that area is mostly compressed clay full of weeds. After heavy rains, I get ponding of water in those areas. Because of large areas of roots, I want to prep that soil to grow ground cover plants since I am not strong enough to dig deep holes to plant shrubs. Do I mix sand & top soil to cover the areas before planting?
I would not mix sand into your soil. It sounds like you have some clay issues and sand and clay make concrete. Instead, just focus on adding top soil and organic material. These articles will help you as well:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/yard-drainage-problems.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/how-to-improve-clay-soil.htm