CDFA Pest Prevention Plant Regulation Practice Exam

Disable ads (and more) with a membership for a one time $4.99 payment

Prepare for the CDFA Pest Prevention Plant Regulation Exam. Use study guides and interactive quizzes, complete with explanations and hints, to ensure you're ready to succeed.

Practice this question and more.

Which one of the following would NOT be under quarantine for southwestern corn borer?

Corn on the cob
Corn stalks
Corn cobs
Broom corn

The correct answer is: Broom corn

The reason that broom corn would not be under quarantine for southwestern corn borer is due to its classification and the nature of the pest's impact on different types of corn. The southwestern corn borer primarily affects plants in the Zea mays species, which includes common corn crops such as field corn, sweet corn, and popcorn. Broom corn, on the other hand, is a different species (Sorghum vulgare) and is not a typical host for this specific pest. In contrast, corn on the cob, corn stalks, and corn cobs are all parts of the common corn crop that may carry the southwestern corn borer or serve as conducive environments for the pest to thrive, thus making them subject to quarantine measures. The quarantine aims to prevent the spread of this pest, which can cause significant damage to corn production.