Apple tree disease

Apple tree disease

Observation - Apple tree disease. Description: This has appeared on two apple trees in our garden throughout the summer. Leaves start with a few brown spots, and up misformed, brown, withered, sometimes have holes in them. The one tree had a limited amount of fruit, the other had none. Otherwise they

This has appeared on two apple trees in our garden throughout the summer. Leaves start with a few brown spots, and up misformed, brown, withered, sometimes have holes in them. The one tree had a limited amount of fruit, the other had none. Otherwise they seem unharmed. There were a few scabs on the apples, unfortunately I don't have photos. Note that the brown "trails" that appear on some leaves, they don't follow the veins in the leaf.