North Carolina Bee School Practice Exam

What are survivor bees bred to resist?

1. Wax moths

2. Varroa mites

3. American foulbrood

4. Small hive beetles

The correct answer is: Varroa mites

Survivor bees are specifically bred to have a natural resistance to Varroa mites, which are one of the most significant pests in managed honeybee populations. These mites attach to bees and feed on their bodily fluids, leading to weakened colonies and increased mortality rates. By selectively breeding bees that demonstrate greater resilience to these infestations, beekeepers can develop lines of bees that are better equipped to thrive despite the presence of Varroa mites. This breeding strategy focuses on identifying and enhancing traits such as hygienic behavior, where bees remove infested brood from the hive, and grooming behaviors that allow bees to physically dislodge mites. The importance of breeding for Varroa resistance is underscored by the severe impact these mites can have on honeybee health and colony viability. In contrast, while other options listed—like wax moths, American foulbrood, and small hive beetles—are also threats to honeybee colonies, survivor bees primarily target Varroa mite resistance in their breeding programs.