VSH Bee Breeding with Harbo Assays
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Measuring and Retaining VSH w/Dr. Harbo (Video) Quiz
1.
What was the original name for the varroa sensitive hygiene (VSH) trait?
1
c) Hygienic Behavior
d) Varroa Sensitive Hygiene
a) Varroa Mite Resistance
b) Suppressed Mite Reproduction
2.
What is the key difference between a reproductive and a non-reproductive varroa mite cell?
1
a) The presence of a male mite.
b) The presence of a fecal patch.
c) The age of the pupae.
d) The presence of a queen mite.
3.
How often should a beekeeper evaluate a colony for VSH?
1
a) Once a month.
b) Once a season.
c) Only when there is a suspected mite infestation.
d) Once after introducing a new queen.
4.
What is the minimum amount of time a beekeeper should wait after introducing a new queen before evaluating the colony for VSH?
1
a) 20 days
b) 40 days
d) 80 days
5.
What is the main reason why a beekeeper should avoid evaluating a colony for VSH more than once with the same queen?
1
a) The VSH score may change due to environmental factors.
b) The VSH score should remain consistent as long as the queen is the same.
c) Multiple evaluations can damage the brood.
d) Repeated evaluations can cause the bees to become aggressive.
6.
Why is it generally unnecessary to sample adult bees for mites if there are no mites in the brood?
1
a) The mites are hiding in the brood and will eventually come out.
b) The mite population can only decline if there are no mites reproducing in the brood.
c) Sampling adult bees is too time-consuming.
d) Sampling adult bees can damage the bees.
7.
What is the main benefit of using single-drone insemination in breeding for varroa resistance?
1
a) It allows for the selection of drones with specific traits.
b) It increases genetic diversity within the colony.
c) It reduces the risk of disease transmission.
d) It increases the number of offspring produced by the queen.
8.
What is the primary benefit of natural mating in beekeeping?
1
a) It ensures that the queen mates with drones from a variety of colonies.
b) It increases the genetic diversity within the colony.
c) It allows for the selection of drones with specific traits.
d) It reduces the risk of disease transmission.
9.
What is the recommended course of action for a hobby beekeeper who wants to introduce varroa resistance into their single hive?
1
a) Purchase a breeder queen and evaluate her offspring.
b) Purchase a open-mated VSH queen and evaluate her offspring.
c) Use natural mating and select for colonies with high VSH scores.
d) Use artificial insemination to select for drones with VSH traits.
10.
What is the main reason why the VSH trait is considered a trait, not a line or breed?
1
a) It can be found in various bee populations.
b) It is a recessive trait.
c) It is a dominant trait.
d) It is a complex trait.
11.
What is the recommended action for a queen producer who discovers that a breeder queen does not score at least a 3 for VSH?
1
a) Discard the queen and purchase a new one.
b) Inform the original producer and possibly replace the queen.
c) Continue using the queen and hope that her offspring will develop VSH.
d) Use artificial insemination to improve the queen’s VSH score.
12.
What is the main advantage of using a cell phone for evaluating VSH?
1
a) It is more affordable than a dissecting scope.
b) It provides a wider field of view.
c) It has built-in magnification and a bright light.
d) It is easier to use than a dissecting scope.
13.
What is the recommended number of cells to examine for evaluating VSH?
1
a) 50
b) 100
c) 200
d) 300
14.
Why is it important to examine older brood when evaluating VSH?
1
a) Older brood is more likely to be infested with varroa mites.
b) Older brood is more likely to show signs of VSH.
c) Older brood is easier to examine than younger brood.
d) Older brood is the only stage where VSH can be detected.
15.
What does a VSH score of 4 indicate?
1
a) The colony is completely free of varroa mites.
b) The colony has a low level of varroa resistance.
c) The colony has a high level of varroa resistance.
d) The colony is susceptible to varroa mites.
16.
What is the main reason why a beekeeper should not combine VSH with another varroa resistance trait?
1
a) Combining traits can make both traits less effective.
b) Combining traits can make the bees more aggressive.
c) Combining traits can make the bees more susceptible to disease.
d) Combining traits is too difficult and time-consuming.
17.
What is the main reason why it is important to wait at least 7 weeks after introducing a new queen before evaluating VSH?
1
a) It takes time for the new queen to establish herself in the colony.
b) It takes time for the new queen’s workers to express the VSH trait.
c) It takes time for the varroa mite population to increase.
d) It takes time for the brood to develop.
18.
What is the main advantage of using a dissecting scope for evaluating VSH?
1
a) It provides a wider field of view.
b) It provides a higher magnification.
d) It provides better lighting for examining the brood.
c) It is more portable than a cell phone.
19.
How does the VSH trait affect the reproductive cycle of varroa mites?
1
a) It prevents mites from laying eggs.
b) It kills the mites before they can reproduce.
c) It disrupts the mites’ reproductive cycle by interacting with infested brood cells.
d) It makes the bees immune to varroa mites.
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