One of the issues that this wetter weather has had on crops in the Southeast is an increase in fungal diseases of both leaves and roots.  This article from Growing Produce shows the consequences of wet soils on young apple trees, which grow in cooler areas of the Southeast like the Appalachians although it is more common farther north and also in the Pacific Northwest.  You can read more about it at https://www.growingproduce.com/fruits/apples-pears/wet-weather-breeds-phytophthora-in-young-apple-plantings/.

Roots and lower stem of a tree infected with Phytophthora crown and root rot. The rootstock has died with a red-brown discoloration. In this case, tissue in the scion is still green, though it will soon die as well. (Photo: Dan Cooley)