What is the purpose of using empty comb in a hive?

Using empty comb in a hive serves the key purpose of allowing bees to expand their colony. When beekeepers introduce empty comb, they provide a space for the bees to build upon, store honey, and raise brood, which is essential for colony growth. As the bees populate the hive and the queen lays more eggs, having empty comb available enables the colony to thrive and expand effectively. The empty comb becomes filled with resources such as nectar and pollen, contributing to the overall health and productivity of the hive. In a growing colony, this expansion space is crucial for the bees' development and survival.

Other options do not relate to the primary purpose of using empty comb in a hive. For instance, while weight may be a consideration in hive management, it is not the goal of introducing empty comb. Similarly, promoting disease and eliminating pests are contrary to the principles of effective beekeeping practices, as healthy comb and hive management are key to preventing disease and pest issues.