CDFA Pest Prevention Plant Regulation Practice Exam

What geographical area is under quarantine for oak wilt?

1. The states of Oregon, Washington, and Idaho

2. All states and districts of the US

3. All states and districts east of and including Montana, Wyoming, Colorado, and New Mexico

4. The Atlantic Seaboard States

The correct answer is: All states and districts east of and including Montana, Wyoming, Colorado, and New Mexico

The geographical area under quarantine for oak wilt is accurately identified as all states and districts east of and including Montana, Wyoming, Colorado, and New Mexico. This reflects the spread and impact of oak wilt, a devastating tree disease that primarily affects oak species. The disease is endemic to certain regions, particularly in the central and eastern United States, where environmental conditions favor its transmission and survival. This quarantine helps manage and restrict the spread of oak wilt by imposing limitations on the movement of oak wood and wood products, especially during periods when the risk of infection is high. Proper understanding and enforcement of the quarantine areas are crucial to protecting oak trees, as the disease can be transmitted through insects and by infecting root systems. The other choices do not accurately represent the specific areas where oak wilt is a concern, as they encompass regions where the disease may not be prevalent or recognized for quarantine measures. This understanding helps ensure that pest prevention strategies are targeted and effective in safeguarding the health of oak populations across affected states.