Structural Pest Control Applicator Practice Exam

What type of herbicide would you choose for targeted weed control in a park?

1. Selective

2. Nonselective

3. Systemic

4. Residual

The correct answer is: Selective

Choosing a selective herbicide for targeted weed control in a park is beneficial because selective herbicides are designed to target specific types of weeds while leaving desirable plants unharmed. This becomes particularly important in a park setting where the health and aesthetics of ornamental plants, grass, and other landscaping features are a priority. Selective herbicides work by attacking specific biological pathways or processes that are characteristic of certain weeds. For instance, some may inhibit the growth of broadleaf weeds without affecting grasses. This allows for effective management of weed populations while maintaining the overall landscape integrity. In parks, where many different plants coexist, a selective approach minimizes the risk of harming the surrounding flora, ensuring that the park remains visually appealing and accessible for recreational activities. This strategic choice reflects a sustainable management practice in landscape maintenance and weed control. In contrast, nonselective herbicides would eliminate all vegetation in the area treated, which would be detrimental in a park setting. Systemic herbicides target the internal systems of plants and may also harm desirable species if not applied carefully. Residual herbicides persist in the soil and can affect surrounding plants long after application, making selectivity important for responsible park management.