Cherry trees benefit a garden with moderate shade, beautiful foliage and a delicious harvest of fruit. Bing cherry trees are an ideal variety to choose for the sweet cherries, but it is important to protect these trees from sickening bacteria--all cherry trees are susceptible to this. To repair and protect the bing cherry tree it is necessary to score the tree, which basically means removing the damaged bark.
Mix the copper fungicide according to the directions in the pressurized hand-held sprayer. It is usually mixed with water.
Mix one part bleach to nine parts water per tree to prepare the bleach sanitizing solution.
Cut around and over the edges of the tree's bark on the infected areas with the knife. Between each cutting, sanitize the knife by spraying it with the bleach solution. Try to keep the edges around the cut as smooth as possible to cause the least possible damage to the cherry tree. Discard the infected bark.
Soak the cherry tree wound with the copper fungicide solution until it is dripping onto the ground.
Seal the wound so it doesn't get wet with the latex non-asphalt sealer. Follow the directions on the latex accordingly.