What does "Active Ingredient" mean on a pesticide label?

The term "Active Ingredient" on a pesticide label refers specifically to the chemical component that is responsible for the pesticide's effectiveness in controlling pests. This ingredient is the primary element that performs the intended action, whether that is killing, repelling, or preventing the growth of the targeted organisms. The active ingredient is typically listed by its chemical name, along with its concentration in the product, which helps users understand the potency and appropriate application rates for effective pest management.

The other components mentioned in the choices serve different purposes. The total pesticide volume in the container pertains to the overall quantity of the product but does not inform about its efficacy. Inert substances included in the formulation play supportive roles, enhancing the pesticide's performance or stability, but they do not contribute to its pest control capabilities directly. The manufacturer's name identifies the company producing the pesticide and does not give any insight into what the product contains or how it functions. This distinction is crucial for users who need to understand what active ingredients are effective against specific pests and how to use the product safely and effectively.