When an arborist prunes a limb off a valuable tree,he or she usually paints the cut surface.The primary purpose of the paint is to
A)minimize water loss by evaporation from the cut surface.
B)improve the appearance of the cut surface.
C)stimulate growth of the cork cambium to "heal" the wound.
D)block entry of pathogens through the wound.

Question

Quizplus · Accepted Answer

The primary purpose of painting the cut surface of a tree limb is to protect it from the entry of pathogens that may cause diseases. Painting the cut surface with a fungicidal or bactericidal agent can prevent the spread of harmful microorganisms that can infect the healthy tissues of the tree. It also helps in reducing the risk of decay and promoting the healing process. Painting the cut surface is not necessary for improving the appearance or minimizing water loss as these can be achieved through other means.

When an Arborist Prunes a Limb Off a Valuable Tree,he