Associate Certified Entomologist (ACE) Practice Exam

What is the purpose of DNA tests in pest management?

1. To attract insects for immediate capture.

2. To determine the presence of living organisms only.

3. To identify pest species through DNA sampling.

4. To provide chemical analysis of pest populations.

The correct answer is: To identify pest species through DNA sampling.

The use of DNA tests in pest management is essential for accurately identifying pest species through DNA sampling. This method allows entomologists and pest management professionals to gather genetic information from pest specimens, which can clarify species identification, especially in cases where certain pests are morphologically similar or where immature stages are involved that may not be easily distinguished by sight alone. By employing DNA testing, pest control efforts can be more targeted, ensuring that the most effective management strategies are employed based on the specific species present. This precision improves the overall efficacy of pest management practices and reduces the likelihood of unnecessary pesticide applications, which are beneficial for environmental health and sustainability. Other options lack the focus on identification, which is the primary benefit of DNA tests. For instance, attracting insects for capture or determining the presence of living organisms does not specifically harness the power of DNA analysis for species identification. Similarly, providing a chemical analysis of pest populations focuses more on the chemical composition and not on identifying the species, which is vital for effective pest management strategies.