Describe the term "pest resistance."

The term "pest resistance" specifically refers to the phenomenon where a pest develops the ability to survive exposure to a pesticide that was previously effective in controlling it. This can occur due to various factors, including genetic mutations, changes in behavior, or physiological adaptations that help the pest survive despite the presence of the pesticide.

Over time, as pests are repeatedly exposed to a particular pesticide, those individuals that possess traits allowing them to survive will reproduce, passing on these resilient traits to future generations. This process can lead to an increase in the population of resistant individuals, making the pesticide less effective or even ineffective. Understanding pest resistance is crucial for pest management strategies, as it underscores the importance of rotating different classes of pesticides and employing integrated pest management practices to mitigate resistance development.

The other options describe different concepts but do not accurately capture what pest resistance means. For example, a reduction in the frequency of a pest does not imply resistance; rather, it could result from successful management practices. Similarly, changes in attractiveness to predators or migration do not directly relate to the ability of pests to withstand pesticide exposure.