red oak trees dying
i had 2 mature red oak trees die 6 months ago.; now 2 more are dead. can you explain ? is there a disease or bug destroying the trees? photo of leaves are possibly from the trees [ not able to reach any to pick off the tree]. [note- there are other logs cut from previous trees laying on the ground in the area. ]
This looks like the shade tree disease in Maryland called Bacterial Leaf Scorch.
Here is a page about it: https://extension.umd.edu/hgic/bacterial-leaf-scorch-trees
Here is a video about it as well: https://www.youtube.com/watch?v=UvtDpMq2kLg&feature=youtu.be