CDFA Pest Prevention Plant Regulation Practice Exam

Hibernation for the southwestern corn borer occurs in which life stage?

1. Eggs

2. Pupa

3. Larva

4. Adults

The correct answer is: Larva

The southwestern corn borer, a significant pest for corn crops, primarily hibernates during its larval stage. This is a crucial phase for the pest, as it seeks protection from harsh environmental conditions, including cold temperatures, that could threaten its survival. During this larval hibernation, the insects are usually found within the corn stalks, where they can find shelter from extreme weather, allowing them to emerge and continue their life cycle when conditions become more favorable. Understanding the life cycle of the southwestern corn borer and the specific stage at which it hibernates is essential for effective pest management strategies. By recognizing that the larva is the stage responsible for hibernation, pest control measures can be geared toward either disrupting this phase or targeting the larvae effectively before they mature into adults, when they become more visible and damaging to the crops.