Would pear trees suck up all soil water contents that kill a 2 year old sod in my back yard?

Question

I have 2 pears tree in my backyard, including other trees (10 years old) from my neighbors’ backyards, an oak and locust tree that grew very big. I was told by landscaper that these trees in my backyard and neighbors would help dry up the soil, such that the 2 year old sod (installed in 2015), did fine in 2016, but died in 2017? Note that there are a few small pear trees shooting up from the roots of a pear tree that I had to cut up that root and the smaller trees.

Does it make sense the trees, including the pear tree demand so much water that the soil became dried up, killing the 2 year old sod?
Thanks!

Answer 1

Trees and lawns do compete for light, water and nutrients. I find it hard to believe, though, the trees killed the 2-year-old lawn.
Was the sod getting regular and sufficient water, plus light? Could it have succumbed to any fungal diseases?
https://pss.uvm.edu/ppp/articles/turfwars.html
https://www.gardeningknowhow.com/lawn-care/lgen/treating-lawn-diseases.htm