In IPM, thresholds can be defined as which of the following?

• A. Economic thresholds
• B. Aesthetic thresholds
• C. Economic and Aesthetic thresholds
• D. None of the above

Answer: (C)

In IPM, thresholds are the action points that tell you when to intervene to manage pests. There are two main kinds. Economic thresholds set the pest density at which the expected cost of damage would equal the cost of control, helping you prevent financial loss. Aesthetic thresholds apply when cosmetic damage affects marketability or appearance, which is important for crops where value comes from look rather than yield alone. Because management decisions should reflect both protecting profits and preserving product quality, thresholds can be economic or aesthetic, and in many situations both are relevant. That’s why the best choice is that thresholds include both economic and aesthetic thresholds.