Question

A large number of mass-reared biological control agents released to overcome a pest population is known as

• A. IPM
• B. Conservation
• C. Inundation
• D. Inoculation

Hint:

Think of "Inundation" like a "flood." You are flooding the field with insects to drown out the pest population.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Augmentative biological control involves the release of natural enemies to supplement the existing population. There are two main strategies: Inundation and Inoculation.
Detailed Explanation:
1. Inundative Release (Inundation): This is the release of a massive number of natural enemies with the goal of an immediate "knock-down" effect on the pest population.
The goal is to use the biological agent like a "living pesticide."
The predators or parasitoids released are not expected to establish a permanent population; they are expected to clear the current generation of pests immediately.
Example: Releasing millions of Trichogramma wasps to control sugarcane borers.
2. Inoculative Release (Inoculation): Releasing a small number of agents early in the season with the expectation that they will multiply and provide control later.
3. Conservation: Managing the environment to help existing natural enemies survive.

Step 2: Final Answer:
Releasing large numbers for immediate control is known as Inundation.