Which statement about cross-resistance is accurate?

Cross-resistance occurs when a pest that has developed resistance to one pesticide also shows resistance to another pesticide that is structurally or functionally similar. This phenomenon typically arises from a single resistance mechanism, allowing the pest to overcome multiple chemicals with similar modes of action.

In many cases, the genetic and biochemical adaptations that confer resistance to the first pesticide also provide protection against the second one, making the management of these pests more challenging for practitioners. Understanding that cross-resistance stems from a single resistance mechanism helps in developing more effective resistance management strategies, where diverse modes of action can be integrated into pest control programs to mitigate this issue.