Associate Certified Entomologist (ACE) Practice Exam

What is the desired effect of using pheromone traps in pest monitoring?

1. To prevent insects from entering a space

2. To track the movement patterns and behavior of insects

3. To eliminate all insects in the area

4. To enhance visibility in dark areas

The correct answer is: To track the movement patterns and behavior of insects

Using pheromone traps in pest monitoring primarily serves to track the movement patterns and behavior of insects. These traps utilize pheromones—chemical signals that insects release to communicate with one another. By deploying these traps, pest managers can effectively attract specific target insect species. Observing the number and species of insects captured provides valuable data regarding their population dynamics, seasonal activity, and trends in behavior. This information is critical for making informed decisions about pest management strategies. The other options do not align with the fundamental purpose of pheromone traps. While preventing insects from entering a space might be an objective of other control measures, pheromone traps do not serve to physically block entry. They also do not aim to eliminate all insects in the area, as their intent is monitoring rather than extermination. Additionally, enhancing visibility in dark areas is unrelated to the function of pheromone traps, which focus on attracting insects using scent rather than light.