Structural Pest Control Applicator Practice Exam

Which type of pesticide targets only pests without harming beneficial organisms?

1. Systemic pesticide.

2. Selective pesticide.

3. Broad-spectrum pesticide.

4. Non-selective pesticide.

The correct answer is: Selective pesticide.

The choice of selective pesticide is appropriate because these types of pesticides are designed specifically to manage certain pest populations while minimizing harm to beneficial organisms, such as pollinators, natural predators, and other non-target species. This is accomplished through their unique modes of action that are effective against specific pest species, allowing for targeted control without broadly affecting the entire ecosystem. In contrast, systemic pesticides travel within the plant, which can lead to unintended effects on beneficial insects and other organisms when they interact with treated plants. Broad-spectrum pesticides are effective against a wide range of pests but also tend to impact beneficial organisms, potentially disrupting ecological balances. Non-selective pesticides indiscriminately kill any organisms they contact, including beneficial species, which can contribute to ecological harm and pest resurgence. Therefore, selective pesticides serve as a more environmentally responsible choice in pest management strategies, preserving the population of beneficial organisms while effectively controlling pest issues.