Answer :
Final answer:
The four methods PCOs use to control insects are mechanical or physical control, chemical control, biological control, and cultural control. Biological control, for instance, makes use of natural predators to manage pests, and is an environmentally friendly option that is part of the broader Integrated Pest Management (IPM) strategy.
Explanation:
There are four different methods a Pest Control Operator (PCO) can use to control insects. These include:
Mechanical or physical control - This involves using physical methods to remove or block pests from environments, such as traps, barriers, or manual removal.
Chemical control - This method employs pesticides or other chemical agents to kill or repel pests. Chemical control should be used responsibly to minimize environmental impact.
Biological control - This method uses living organisms, such as predators, parasites, or pathogens, to control pest populations. For example, introducing species that prey upon and destroy pest species can be highly effective.
Cultural control - This method involves modifying farming practices, such as crop rotation or intercropping, to make the environment less hospitable to pests.
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