What is the primary function of growth regulators in agriculture?

Growth regulators serve a specific and vital function in agriculture by altering the growth or development of plants and animals. These substances can influence processes such as cell division, elongation, flowering, and fruiting, thereby impacting overall growth patterns. For example, in plants, growth regulators can be used to promote faster growth, delay flowering, or encourage fruit ripening. This ability to manipulate growth processes allows farmers and growers to optimize yield, enhance uniformity, and sometimes improve the quality of crops.

In contrast, the other options focus on different pest management strategies. Controlling weeds involves the application of herbicides, which target unwanted vegetation rather than influencing growth processes. Destroying pests is the realm of insecticides and fungicides, which specifically aim to eliminate harmful insects and pathogens. Controlling animal populations typically requires different management practices, often involving traps or specific types of poison, rather than a focus on growth regulation. Thus, the distinct role of growth regulators in modifying growth makes this option the most accurate choice.