QAL Laws & Regulation Practice Exam

Which statement is true about biological control methods?

1. They rely solely on chemicals to control pests

2. Modifying the environment to enhance natural enemies is a recommended practice

3. They are not considered part of integrated pest management

4. They only involve the use of pheromones

The correct answer is: Modifying the environment to enhance natural enemies is a recommended practice

The statement that modifying the environment to enhance natural enemies is a recommended practice accurately reflects the principles of biological control methods. Biological control focuses on utilizing naturally occurring organisms, such as predators, parasitoids, or pathogens, to manage pest populations. By modifying the environment—such as improving habitat conditions or altering agricultural practices—it is possible to create a favorable setting for these natural enemies to thrive, thereby increasing their effectiveness in controlling pests. This approach is integral to sustainable pest management practices, including integrated pest management (IPM), which aims for long-term pest control with minimal environmental impact. Enhancing the presence and effectiveness of natural enemies can lead to a more balanced ecosystem and reduce reliance on chemical pesticides. In contrast, the other statements do not align with the principles of biological control methods. Relying solely on chemicals goes against the core philosophy of biological control, which emphasizes a more holistic approach to pest management. Likewise, biological control is indeed considered a component of integrated pest management, rather than being excluded from it, as it aims to work in conjunction with other pest management strategies. Lastly, while pheromones can be part of pest management strategies, biological control encompasses a much broader range of practices beyond just pheromone use. Therefore, modifying the environment to support