Which method is an example of physical control in pest management?

The use of insect nets or traps to capture pests is a clear example of physical control in pest management because it involves directly manipulating the physical environment to reduce pest populations. This method does not rely on chemical substances or biological agents; rather, it utilizes physical barriers or devices to prevent pests from accessing plants or areas, effectively reducing their numbers through capture or exclusion.

Physical control methods are important in integrated pest management (IPM) as they are environmentally friendly and can be highly effective. Insect nets can physically block pests from reaching crops, while traps can capture insects before they can reproduce or cause damage. This approach minimizes reliance on chemical controls, thus reducing potential harm to non-target organisms and the environment.

Other options involve the use of chemicals or biological strategies rather than physical methods to manage pest populations, which distinguishes insect nets and traps as a purely physical control tactic.