Monitoring pests at airports and ocean ports that pose a serious threat is an example of which type of pest management method?

The correct answer is regulatory because this method involves government oversight to manage and control pests that could pose significant risks to public health, agriculture, and the environment. In the context of airports and ocean ports, regulatory pest management focuses on monitoring and preventing the introduction and spread of harmful pests that could affect trade, commerce, and ecological balance. This can include inspections, quarantines, and compliance with international standards to ensure that pest threats are adequately addressed before they can propagate or cause harm.

The other methods listed would not apply in this scenario. Genetic methods typically involve the use of genetic engineering or modification to manage pest populations, which is not relevant to the situation of monitoring pests at critical transportation hubs. Biological methods revolve around using natural predators or pathogens to control pest populations, which again doesn't directly pertain to the monitoring focus outlined in the question. Cultural methods are practices that alter the environment to reduce pests, but they don't specifically involve the regulation and monitoring that is crucial in high-risk areas like ports and airports.