Tracking a Queen Rearing Program With Varroa Management
Queen rearing and varroa management are more connected than most beekeepers realize. The queens you raise determine the mite tolerance of your colonies going forward. A queen rearing program that incorporates varroa data in its selection criteria is a long-term investment in colony health. Without tracking, you are raising queens blind to the one factor that most affects colony survival.
The Genetics of Varroa Resistance
Honey bees express several heritable behaviors that reduce varroa impact. Hygienic behavior, where worker bees detect and remove mite-infested pupae from cells, reduces mite reproduction rates. Suppressed mite reproduction (SMR), now more accurately called Varroa Sensitive Hygiene (VSH), refers to bees that specifically identify and remove mite-reproducing cells while leaving non-reproducing cells intact. Recapping behavior, where workers re-seal cells that have been opened, may interrupt some mite reproduction.
These traits are quantifiable and selectable. Colonies with high hygienic behavior scores and lower mite counts relative to surrounding colonies are candidates for your queen rearing program. Colonies that consistently require treatment every few weeks, or that show rapid mite rebound after treatment, are not.
What to Track in a Queen Rearing Program
Breeder colony selection. Record why you chose each breeder colony: mite count history, hygienic behavior score if tested, winter survival record, honey production, temperament, and disease resistance. The mite count history is the most objective metric. A colony that has maintained counts below 1% through a full season without treatment is a meaningful outlier worth propagating.
Grafting records. Log the date of each graft, the breeder colony used, number of cells grafted, and number of cells accepted. Acceptance rates tell you about cell builder colony strength. Low acceptance over multiple grafts might indicate a cell builder that is too crowded, too warm, or queenright.
Queen development timeline. Cells are capped at approximately 8 days after a fertilized egg is laid. Queens emerge at 16 days after the egg. Bank queens correctly by moving cells to a queenright finisher colony on day 10 to 14 after grafting. Log these dates so you know exactly when to expect emergence and mating.
Mating outcomes. Log the date each nuc was queened, the date you first observed eggs from the new queen, and a brood pattern assessment from the first inspection after laying begins. Early brood pattern quality predicts queen performance. A queen who starts with a tight, solid pattern is more likely to maintain that pattern through the season.
Daughter colony mite counts. Track mite counts in colonies headed by daughters from your breeding program. This is the feedback loop that validates your selection criteria. If daughters from your lowest-mite breeder colony consistently maintain lower mite counts than daughters from your other breeders, that is meaningful. Over multiple generations, this data guides your selection toward genuinely improved genetics.
Coordinating Queen Rearing and Varroa Treatment
Queen rearing and varroa treatment timing interact in ways that require planning. You cannot treat a cell builder or a mating nuc with Apivar, as the strips require an established laying queen to be effective and the chemical exposure in a weak nuc colony can cause losses. MAQS at full dose should not be used in nucs due to colony stress.
OAV is the most nuc-friendly option. A single OAV application in a queenless nuc during the brood break between grafting and queen emergence is an excellent opportunity. All mites are phoretic, the colony is temporarily queenless, and the treatment has no negative interaction with developing queen cells if the cells are not directly exposed to vapor.
Log any treatments applied to cell builders, finisher colonies, or mating nucs as part of your queen rearing records. These are distinct from your main colony treatment records.
Using VarroaVault for Queen Program Records
VarroaVault allows you to designate colonies as breeders or cell builders and track linked relationships between parent colonies and their daughters. When a queen raised from colony 12A is introduced to colony 24, and colony 24's subsequent mite counts are logged, you have a data trail connecting queen genetics to colony performance.
The colony strength scoring data linked to your queen rearing records gives you a multi-dimensional picture of each queen's performance over her productive life. Combined with mite count history, this is the dataset you need to make meaningful selection decisions rather than simply choosing the prettiest-looking colony.
Long-Term Program Development
A queen rearing program with integrated varroa data takes several years to show meaningful genetic progress. Year one is establishing the tracking system and identifying the cleanest colonies in your population. Year two is raising daughters from those colonies and recording their mite counts. Year three and beyond is comparing daughter performance, identifying which lines maintain the lowest mite counts, and selecting from among those daughters for the next generation.
This is not a fast process, but it is the one that actually produces colonies that are easier to manage over time.