CDFA Pest Prevention Plant Regulation Practice Exam

What is the scientific name for quack grass?

1. Agropyron repens

2. Alhagi camelorum

3. Sorghum halepense

4. Sonchus arvensis

The correct answer is: Agropyron repens

The scientific name for quack grass is Agropyron repens. This perennial grass species is known for its aggressive growth and ability to spread rapidly through its rhizomatous root system, making it a common weed in many agricultural and garden settings. Recognizing the correct scientific name is important for effective pest management and control strategies, as each plant species can have different impacts on crops and ecosystems. The other choices represent different species: Alhagi camelorum is a legume found in dry regions, Sorghum halepense is more commonly known as johnsongrass, a perennial grass found in similar environments, and Sonchus arvensis is commonly known as perennial sowthistle. Each of these plants has distinct characteristics and management challenges, highlighting the importance of accurate identification in pest management practices.