What is the function of a curative pesticide?

The function of a curative pesticide is primarily to inhibit or kill established diseases. These pesticides are specifically designed to target and eliminate pests or pathogens that are already present and causing damage or disease to plants. Unlike preventive pesticides, which are used proactively to stop pests before they establish themselves, curative pesticides are applied after an infestation or infection has occurred, aiming to mitigate damage, restore plant health, and protect crops.

In contrast, the other options describe different types of pesticide functions. Preventive pesticides are intended to stop pests before they can establish themselves. Enhancing plant growth is not a function of curative pesticides; instead, growth regulators or fertilizers serve that purpose. Similarly, acting as a soil conditioner is unrelated and pertains more to improving soil quality rather than directly affecting pests or diseases. Thus, focusing on the role of curative pesticides, option B is clearly aligned with their primary objective in pest management.