What should be done after grafting is completed? Essential Steps for Successful Queen Rearing

After grafting is completed, the immediate priority is to ensure the grafted larvae remain hydrated and properly nurtured in the starter colony. The bar of cells should be inserted into the starter colony without delay to prevent dehydration. It's crucial to limit the number of bars to avoid overloading the colony—typically, four bars are sufficient. The cells should remain in the starter colony overnight to allow the bees to accept and begin caring for the grafted larvae.

Key Points Explained:

1. Insert the Bar of Cells Immediately

   • The grafted larvae are vulnerable to dehydration, so the bar of cells must be placed into the starter colony as soon as grafting is finished.
   • Delaying insertion risks drying out the larvae, reducing their chances of survival.

2. Avoid Overloading the Starter Colony

   • A starter colony can only effectively care for a limited number of grafted larvae.
   • Four bars of cells are generally sufficient—adding more may overwhelm the colony, leading to poor acceptance rates.

3. Leave the Bar Overnight

   • The starter colony needs time to recognize and begin feeding the grafted larvae.
   • Keeping the bar in place until the next morning ensures the bees have adequate time to start nurturing the new larvae.

4. Monitor for Acceptance

   • After the initial overnight period, check if the bees have begun feeding the larvae (visible by the presence of royal jelly).
   • If acceptance is low, reassess grafting technique or colony conditions (e.g., queenlessness, colony strength).

By following these steps, beekeepers can maximize the success rate of grafted larvae and ensure healthy queen rearing.

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