: The bark may appear reddish-brown, cracked, or flaky, and in some cases, may exude a clear or amber-colored "gum".
: Look for oval, sunken areas of bark with characteristic concentric rings of callus tissue. apple canker
Apple canker is a destructive fungal or bacterial disease that attacks the bark of apple trees, causing sunken lesions, branch dieback, and potentially the death of the entire tree. Below are the key "solid features" and management strategies to help you identify and handle it. : The bark may appear reddish-brown, cracked, or
: Leaves and blossoms on branches above a canker may suddenly wilt, brown, or die back. 2. Essential Management Steps Below are the key "solid features" and management
: In active infections, you may see tiny red or white dots (spore-producing bodies) on the surface of the infected bark.