Answer :
Final answer:
Using barriers to block pests is a method of mechanical pest management. It prevents pests from accessing certain areas. Another example of a mechanical management method is the introduction of sterilized male pests to reduce the pest population.
Explanation:
The use of barriers to prevent pests from entering an area is an example of a mechanical pest management method. This strategy involves creating physical obstacles that block pests from accessing specific areas, similar to how some plants have thorns to prevent herbivory. So, erecting physical barriers would be a form of mechanical management. Farmers employing such strategies often opt for fences, nets, or similar structures to protect their crops from pests. Another example of mechanical pest management includes the sterile male introductions, where males of the target species are reared in the lab, sterilized and released into the environment where they mate with wild females, who bear no live offspring, thereby reducing the pest population.
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