Question From: ILLINOIS
Q: We have a tulip tree that is dropping yellow leaves with brown spots. Above it says that a lack of water can cause this, but we have had an abundance of rain this spring and summer.
Sounds like your tree may have a fungal disease. If it were my tree I would get an insite inspection from a professional, a certified arborist. To find one in your area go to www.tcia.org and enter your address.