CDFA Pest Prevention Plant Regulation Practice Exam

In California, where is Copper's broomrape known to occur?

1. Portions of Imperial and Riverside Counties

2. Portions of Fresno County

3. Portions of Sacramento County

4. Portions of San Benito County

The correct answer is: Portions of Imperial and Riverside Counties

Copper's broomrape, scientifically known as Orobanche copperi, is a parasitic plant that specifically targets the roots of other plants, particularly certain species of native and agricultural plants. In California, the occurrence of Copper's broomrape is primarily identified in areas of Imperial and Riverside Counties. The environmental conditions, such as soil type and host plant availability, in these counties create a suitable habitat for this species to thrive. This knowledge is crucial for pest prevention and plant regulation practices, as identifying the locations where Copper's broomrape is prevalent can assist in implementing effective management strategies to control its spread and protect native flora and agricultural crops. Recognizing its distribution is important for stakeholders in agriculture and conservation efforts, making the location in Imperial and Riverside Counties the correct answer.