What is a potential negative consequence of over-relying on chemical control?

Over-relying on chemical control in pest management can lead to the development of pest resistance. This occurs when pests are repeatedly exposed to the same chemical controls over time, allowing those individuals that have natural resistance to survive and reproduce. As a result, the overall population of the pest becomes increasingly resistant to the chemicals that were initially effective, making future management efforts more challenging. This can create a cycle where stronger or more toxic chemicals may be needed to control these resistant populations, potentially leading to further environmental issues and economic losses for growers.

On the other hand, the other potential consequences would not typically arise from an over-reliance on chemical approaches. For instance, enhanced crop yields and improved soil health are generally benefits associated with good agricultural practices, while increased biodiversity is often the result of integrated pest management strategies that employ a combination of controls, including biological and cultural methods, rather than solely relying on chemicals.