Fertilization nuclei for queen bees. Particularly suitable for the instrumental insemination of queen bees:

 
 equipped with queen excluders to prevent accidental fertilization flights
 
 excellent thermal insulation thanks to the high density material
 
 excellent mechanical resistance
 
 lower sliding drawer useful for filling with 100/150 g of bees
 
 syrup or candy feeder made of mothproof plastic
 
 pre-formed frames ready to be brushed with a little liquid wax
 
 adjustable front ventilation useful for moving around
 
 adjustable lower ventilation for better air circulation
 
 stackable feet for easy transport
 
 4-position front disc with queen excluder
 
 plastic honeycomb cover sheet prepared for the insertion of the queen cells