What problems are associated with the storage of diluted pesticides?

The correct answer highlights significant concerns associated with the storage of diluted pesticides, specifically loss of effectiveness and potential freezing. When pesticides are diluted, their concentration is reduced, which can lead to a degradation of their active ingredients over time. Exposure to varying temperatures can further exacerbate this issue; for instance, if diluted pesticides are stored in conditions that drop below freezing, the chemical stability can be compromised. This can result in the formation of precipitates or breakdown products, reducing the pesticide's efficacy once applied.

The other options do not accurately reflect the challenges of storing diluted pesticides. Decreased toxicity (first option) incorrectly suggests that a diluted pesticide is safer when, in fact, it can still pose risks if not stored properly. Increased shelf life (third option) is misleading, as diluted products are generally less stable than their concentrated counterparts. The suggestion that there are no problems at all (fourth option) overlooks the very real risks and potential effectiveness loss associated with improper storage of diluted pesticides. Recognizing these issues is crucial for ensuring that pest control measures are effective and safe.