Question

Insects that have the potential to reach pest status but normally suppressed by natural regulating factors are

• A. Key Pest
• B. Occasional Pest
• C. Potential Pest
• D. Regular Pest

Hint:

Disruptions in natural biological control (such as the misuse of chemical pesticides) often cause potential pests to emerge as active pests, a phenomenon known as secondary pest outbreaks.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
In Integrated Pest Management (IPM), insect species are classified based on their ecological roles, population dynamics, and economic impact.
Detailed Explanation:
Let us review the standard definitions of these categories:
- Potential Pest (3): These are species that have the reproductive capacity and host affinity to cause economic damage, but are kept below the Economic Injury Level (EIL) by natural limiting factors (such as predators, parasitoids, diseases, or weather).
If these natural checks are disrupted (for example, by broad-spectrum insecticide applications that kill beneficial insects), these species can experience rapid population growth and become active pests.
- Key Pest (1): These are primary pests whose populations consistently exceed the EIL every year, requiring regular intervention.
- Occasional Pest (2): These species cause damage only during certain years or under specific environmental conditions.
- Regular Pest: These pests occur predictably in almost every crop cycle, but can be managed with standard practices.

Step 2: Final Answer:
Insects that are suppressed by natural factors but have the potential to cause economic damage if those factors are disrupted are called Potential Pests.