MDARD Michigan Core Pesticide Applicator Practice Exam

Which of the following statements about biological control is true?

1. Biological control involves importing exotic pests to control natural enemies

2. Using several cultural practices and a wide variety of pesticides works best in biological control

3. Modifying the environment to enhance natural enemies is recommended in bio control

4. Biological control relies solely on chemical pesticides

The correct answer is: Modifying the environment to enhance natural enemies is recommended in bio control

Biological control is focused on managing pest populations through natural means, primarily by enhancing the impact of predators, parasites, or pathogens that are already present in the ecosystem. The practice of modifying the environment to foster the activity and effectiveness of these natural enemies is a key strategy in biological control. This can include creating habitats that support beneficial organisms or adjusting agricultural practices that might otherwise hinder their presence. Option C emphasizes this approach of optimizing the environment, which is a foundational aspect of biological control. By enhancing the circumstances under which natural enemies thrive, pest populations can be kept in check without relying solely on chemical interventions, highlighting a sustainable and ecological method of pest management. This method aims to maintain a balance in the ecosystem and promote long-term pest control solutions.