Structural Pest Control Applicator Practice Exam

Which pest control method involves the use of natural predators?

1. Cultural control.

2. Biological control.

3. Chemical control.

4. Mechanical control.

The correct answer is: Biological control.

Biological control is a pest management strategy that relies on the use of natural predators, parasites, or pathogens to control pest populations. This method leverages the existing ecosystem and its natural relationships to maintain pest levels at or below economic thresholds, thus minimizing the need for synthetic pesticides. In biological control, organisms such as ladybugs or parasitic wasps are introduced into a habitat where they prey on pest species, effectively reducing their numbers. This method promotes a more environmentally friendly approach, as it often reduces the reliance on chemicals and can lead to long-term pest management solutions. Moreover, biological control methods can help restore ecological balance by encouraging biodiversity. This method is distinct from other pest control strategies: cultural control focuses on altering farming practices or habitat management to prevent pest establishment; chemical control involves the use of synthetic or natural pesticides to kill or repel pests; and mechanical control refers to physical methods such as traps or barriers to manage pest populations. Each of these methods has its own benefits, but biological control specifically emphasizes the use of natural enemies to achieve effective pest management.