What is a disadvantage of pesticide residues?

A primary disadvantage of pesticide residues is that they may adversely affect non-target species. When pesticides are applied to control pests, they often do not discriminate between harmful insects and beneficial organisms. This can include pollinators like bees, natural pest predators, and other wildlife. The unintended consequence of harming these non-target species can disrupt local ecosystems, reduce biodiversity, and lead to the decline of species that are essential for maintaining a healthy environment.

For instance, if a pesticide residue persists in the soil or on plants, it can be ingested by or come into contact with various non-target organisms, causing harmful effects or even leading to population declines. This negative impact extends not only to the immediate environment but can also have long-term ecological consequences, highlighting the importance of considering the wider implications of pesticide use beyond just the target pests.

In contrast, the other options tend to emphasize either potential benefits or neutral aspects of pesticide usage, not highlighting the critical issue of collateral damage to non-target species.