In the context of pesticides, what does the term “residue” refer to?

The term "residue" in the context of pesticides refers to the remaining pesticide on a treated surface after application. This includes any amount that may be left on plants, soil, or surfaces where pesticides have been applied. Understanding pesticide residue is crucial for assessing the safety and effectiveness of pest control measures, as well as for compliance with regulations regarding pesticide usage and food safety.

Though other options may relate to pesticides in different capacities, they do not accurately define "residue." For instance, while absorbed pesticides and breakdown products can be significant in the context of pesticide absorption and environmental impact, they don't specifically align with the definition of residue. Similarly, the mention of pesticides used for storage does not pertain to the broader concept of pesticide residue as a physical presence remaining post-application on treated surfaces.