Certified Professional Horticulturist (CPH) Practice Exam

What is the first step in selecting the best method of weed control?

1. Identification

2. Eradication

3. Prevention

4. Resistance

The correct answer is: Identification

The first step in selecting the best method of weed control is identification. Identifying the specific weeds present in a given area is crucial because different species of weeds have varying growth habits, lifecycles, and environmental preferences. By accurately identifying the weeds, a horticulturist can assess their biology and ecology, which informs the choice of control methods that are most effective for that particular weed. Understanding the specific characteristics of the weeds helps in determining if they are annual or perennial, whether they reproduce by seed or vegetatively, and their tolerance to various control measures. This knowledge also guides the selection of cultural practices, mechanical methods, chemical controls, or integrated approaches that might be necessary to manage them effectively. Without proper identification, there is a risk of applying inappropriate or ineffective control methods, which can lead to further weed problems or unintended damage to desirable plants. Therefore, starting with correct identification lays the foundation for developing an effective weed management strategy.