Pesticides are most poisonous when they are in what form?

The most poisonous form of pesticides is concentrated. This is because concentrated pesticides contain a higher amount of active ingredients compared to other forms. When pesticides are in a concentrated state, they can deliver a more potent effect on pests, which also increases their potential toxicity to humans and non-target organisms.

When handling concentrated forms, it is crucial to take extra precautions, as even small quantities can lead to significant exposure risks. Other forms, such as liquids that have been diluted or granular applications, typically have a lower concentration of the active ingredient, making them less immediately hazardous in terms of direct exposure. Thus, the concentrated nature of the pesticide is what distinguishes its level of toxicity, making it the most hazardous form.