A1 Field Crops Pest Management Practice Test 2025 – Complete Exam Prep

Biological control methods involve the use of living organisms to manage pest populations, reducing the reliance on chemical pesticides. In this context, parasitoids serve as a prime example. These are organisms that lay their eggs on or within a host pest, which is then ultimately killed by the developing parasitoid. This method leverages natural predators to specifically target pest species, thereby maintaining ecological balance and minimizing environmental impact.

The importance of biological control lies in its sustainability. By utilizing parasitoids, farmers and pest management professionals can achieve effective pest control while fostering biodiversity and encouraging the natural enemies within the ecosystem. This differentiates the method from others, like insecticides, which chemically kill pests but may also harm beneficial organisms.

While traps and companion planting can also be valid pest management tactics, they do not involve the use of living organisms for control or rely on ecological interactions in the same way that parasitoids do. Thus, the use of parasitoids exemplifies the principles of biological control effectively.