Honey bee life cycle lay fertilized or unfertilized eggs. Each unfertilized egg contains a unique combination of 50% of the queen's genes and develops into a haploid drone. The fertilized eggs develop into either diploid workers or virgin queens if fed royal jelly. The average lifespan of a queen is three to four years; drones usually die upon mating or are expelled from the hive before the winter; and workers may live for a few weeks in the summer and several months in areas with an extended winter. The weight progression of the worker egg, larva: Honey bee life cycle The honey bee life
Honey bee various regions globally, such as tomatoes, which are not effectively pollinated by honey bees. Primarily in places where the bee was imported by humans, periodic collapses in honeybee populations have occurred at least since the late 19th century. Starting in the first decade of the 21st century, abnormally high die-offs (30–70% of hives) of European honey bee colonies have occurred in North America. This has been dubbed "colony collapse disorder" (CCD) and was at first unexplained. It seems to be caused by a combination of factors rather than a single pathogen or poison, possibly including neonicotinoid pesticides or Israeli acute