True or False: Overdoses of pesticides that remain in the soil for long periods can be harmful to future crops.

The assertion that overdoses of pesticides that remain in the soil for long periods can be harmful to future crops is true. Persistent pesticides can lead to several negative effects on soil health and crop productivity. When pesticides are applied excessively, their residues can accumulate in the soil, creating an environment that is toxic to various beneficial organisms, such as soil microbes and earthworms. These organisms play crucial roles in nutrient cycling, soil structure, and overall ecosystem health.

Additionally, the presence of high pesticide concentrations can lead to phytotoxicity, where future crops may exhibit symptoms of injury or reduced growth due to the chemical residues. Depending on the chemical nature of the pesticide, it may also affect the soil's physical and chemical properties, making it less fertile or inhibiting seed germination and plant development.

Thus, the long-term implications of pesticide overdoses not only impact immediate crop health but can also have lasting effects on agricultural land and future harvests, making it essential for applicators to adhere to recommended application rates and practices.