When should you begin a control program for rabbits?

When should you begin a control program for rabbits?

• A. As soon as you first see one.
• B. When you see more than five.
• C. When the damage exceeds the cost and time required to control them.
• D. Implement control measures before any damage is observed.

Answer: (C)

The key idea is to use an economic threshold: start a rabbit control program when the expected damage from the rabbits would cost more than the effort and resources required to control them. In other words, act when the losses you would incur by letting them continue exceed the costs (and time) of applying control measures. This avoids wasteful spraying for every rabbit seen or waiting for a fixed number, and it avoids unnecessary preemptive control before any damage is observed unless you’re in a situation where a high-value crop or persistent risk justifies it. So, the best approach is to begin control when the damage would exceed the costs of controlling them.

The key idea is to use an economic threshold: start a rabbit control program when the expected damage from the rabbits would cost more than the effort and resources required to control them. In other words, act when the losses you would incur by letting them continue exceed the costs (and time) of applying control measures. This avoids wasteful spraying for every rabbit seen or waiting for a fixed number, and it avoids unnecessary preemptive control before any damage is observed unless you’re in a situation where a high-value crop or persistent risk justifies it. So, the best approach is to begin control when the damage would exceed the costs of controlling them.