Answer :
Final answer:
The most effective method for long-term rodent control is Integrated Pest Management (IPM), which incorporates a blend of cultural, mechanical/physical, biological, and, when necessary, chemical controls. So the correct option is 4) Integrated pest management.
Explanation:
The best control method for long-term control of rodents is Integrated Pest Management (IPM). IPM relies on a combination of approaches for effective and environmentally sensitive pest management. This includes using cultural controls (like reducing the conditions that pests need to live), mechanical/physical controls (such as using traps or barriers to prevent access or remove pests), biological controls (introducing natural predators of the pests), and when necessary, chemical controls (using pesticides selectively and responsibly to minimize pest populations). IPM aims to reduce reliance on pesticides and minimize environmental damage while effectively controlling pest populations. For rodents, utilizing a variety of control methods in a coordinated strategy is crucial for long-term management and prevention.