What consequence might arise from using a pesticide past its shelf life?

Using a pesticide past its shelf life can lead to a reduction in effectiveness and an increase in safety concerns. Shelf life indicates the period during which the pesticide maintains its potency and safety, as determined by rigorous testing. Once this period is exceeded, the chemical composition of the pesticide may degrade, leading to a decrease in its effectiveness in controlling pests or diseases.

Additionally, as pesticides degrade, they might produce by-products that could be more hazardous than the original formulation. This degradation can affect both human health and environmental safety, potentially leading to unintended consequences when the pesticide is applied. Therefore, opting for a pesticide that is within its designated shelf life is critical for ensuring that it works as expected and does not pose unforeseen risks.