Table of Contents
- How a Worker Bee Begins
- What Nurse Bees Feed Workers, Drones, and Queens
- The Worker Bee’s Jobs Inside the Hive
- Caring for and Feeding the Queen
- Collecting Nectar, Pollen, Water, and Propolis
- How Many Flowers a Worker Bee Visits
- How Many Flower Visits Produce a Teaspoon of Honey
Introduction
A worker honey bee passes through four life stages—egg, larva, pupa, and adult—but her responsibilities continue changing throughout her adult life. Every worker is female, yet she normally does not reproduce. Instead, workers clean cells, feed developing larvae, build wax comb, regulate hive temperature, guard the entrance, care for the queen, collect plant resin for propolis, and eventually forage for nectar and pollen. Workers, drones, and queens do not simply become different because they are placed in differently sized cells. Drones originate from unfertilized eggs, while workers and queens originate from fertilized eggs. Among female larvae, the quantity, composition, and duration of feeding provided by nurse bees play major roles in determining whether the adult becomes a worker or a queen. [1][2]
1. How a Worker Bee Begins
A worker begins when the queen places a fertilized egg in a worker-sized wax cell. Fertilized honey bee eggs contain two sets of chromosomes and can develop into either workers or queens. In contrast, an unfertilized egg contains one set of chromosomes and normally develops into a male drone. The worker egg hatches into a larva after approximately three days. Nurse bees repeatedly inspect and feed the growing larva before workers cap the cell with wax. Inside the capped cell, the larva spins a cocoon, becomes a pupa, and undergoes a major transformation in which the adult legs, wings, eyes, antennae, and body form develop. A worker normally emerges as an adult approximately 21 days after the egg was laid. A queen develops more quickly, generally emerging in about 16 days, while a drone requires approximately 24 days. Developmental time can vary somewhat with colony temperature and conditions, but workers maintain the brood nest near the temperature required for normal development. [2][3]
2. What Nurse Bees Feed Workers, Drones, and Queens
Young larvae are fed glandular secretions produced by nurse workers, but the feeding program changes according to the larva’s sex and intended caste. During their earliest development, worker, drone, and queen larvae receive nutrient-rich jelly produced primarily by the nurse bees’ hypopharyngeal and mandibular glands. After roughly the first three days, a worker-destined larva is switched to a more restricted worker diet containing glandular secretions combined with increasing contributions from honey or nectar and pollen-derived material. A drone larva also develops from an early jelly diet to a drone food mixture containing glandular secretions, honey or nectar, and pollen. A drone is not created by special food, however. It becomes male because it developed from an unfertilized egg. The larger drone cell and greater amount of food accommodate the larger male larva. [1][4]
A queen is created from a young fertilized female larva that could otherwise have become a worker. Workers place or rear that larva in an enlarged, downward-hanging queen cell and provision it continuously with an abundant supply of royal jelly. Royal jelly is a protein- and nutrient-rich glandular secretion produced by young nurse bees. Queen-destined larvae receive much more food than worker or drone larvae and continue receiving royal jelly throughout larval development rather than being shifted to the more restricted worker diet. This nutritional difference activates different developmental pathways, allowing the queen to develop fully functional ovaries, a larger abdomen, different glands, and a much longer adult life. Research indicates that caste development involves the total amount and composition of food and is more complicated than a single ingredient in royal jelly acting alone. [1][5]
3. The Worker Bee’s Jobs Inside the Hive
A newly emerged worker generally begins with duties close to the cell from which she emerged. She cleans brood cells so the queen can lay new eggs in them and helps warm the brood. As glands in her head mature, she becomes a nurse bee and feeds larvae. Nurse workers must consume pollen and bee bread because protein and other nutrients are required for their glands to produce larval food. Bee bread is stored pollen that bees have mixed with nectar or honey and packed into comb cells, where microbial and chemical changes help preserve it. As a worker ages, she may receive and process nectar from returning foragers, pack pollen, remove dead bees and debris, ventilate the hive, and secrete wax from glands under her abdomen. Workers chew and shape the wax into comb used for brood rearing and food storage. The sequence is flexible rather than absolute; colonies can redirect workers toward the jobs most urgently needed. [6][7]
4. Caring for and Feeding the Queen
The queen does not normally travel around the hive gathering food for herself. She is surrounded by attendant workers sometimes called her retinue. These workers touch and examine her, groom her body, remove waste, and feed her through mouth-to-mouth food transfer known as trophallaxis. The queen receives nutrient-rich glandular food from workers, supporting her exceptionally high egg production. A productive queen may lay more than 2,000 eggs per day during favorable conditions. Attendant workers also collect queen pheromones from her body and distribute them through contact and food sharing, helping communicate the queen’s presence and reproductive condition throughout the colony. Workers inspect the cells ahead of her, and the queen measures a cell before laying either a fertilized worker egg or, in a larger drone cell, an unfertilized drone egg. When a queen becomes weak, dies, or prepares to leave with a swarm, workers may begin feeding selected young female larvae as replacement queens. [1][2]
5. Collecting Nectar, Pollen, Water, and Propolis
During the later portion of her life, a worker commonly becomes a field forager. Nectar provides carbohydrates and is processed into honey, while pollen supplies protein, fats, vitamins, minerals, and other nutrients needed especially for brood production. Other workers specialize in collecting water, which is used for drinking, diluting stored food, and cooling the colony through evaporation. Some collect sticky plant resins from buds, bark, and wounded plant surfaces. Inside the hive, bees mix and manipulate these resins to make propolis, sometimes called bee glue. Propolis is a resin-rich material used to seal cracks, smooth surfaces, reduce unwanted openings, and coat portions of the nest interior. A natural propolis envelope also contributes to colony defense because plant resins possess antimicrobial properties and can reduce certain potentially harmful microorganisms within the hive environment. Propolis is therefore a construction material and part of the colony’s collective or social immune system; it is not the food used to create queens, workers, or drones. [8][9]
6. How Many Flowers a Worker Bee Visits
The number of flowers visited by one worker varies greatly with flower species, nectar supply, weather, distance from the colony, and the amount of nectar or pollen available in each blossom. The U.S. Food and Drug Administration reports that a forager may make 12 or more trips in a day and visit several thousand flowers. University of Missouri Extension reports that a worker may visit approximately 5,000 flowers during a productive day. A single trip may involve dozens or hundreds of flowers before the worker returns with nectar or pollen. Honey bees commonly show flower constancy, meaning an individual forager tends to visit one plant species during a particular trip. This behavior helps plants because pollen collected from one flower is more likely to reach another flower of the same species. A worker’s foraging career may last only days or weeks because repeated flights gradually wear her wings and body. [6][10]
7. How Many Flower Visits Produce a Teaspoon of Honey
No exact number applies to every teaspoon because different flowers produce very different quantities and sugar concentrations of nectar. However, University of Missouri Extension states that honey bees collectively visit about two million flowers to produce one pound of honey. A pound of honey contains roughly 64 to 65 teaspoons, depending on density and measurement. Dividing two million flower visits by approximately 65 teaspoons produces an estimate of about 30,000 to 31,000 flower visits for one teaspoon of honey. This is a colony-level estimate, not the work of one bee visiting exactly 30,000 flowers and personally completing the entire teaspoon. Nectar is passed among workers, enzymatically changed, deposited into comb cells, and concentrated as workers circulate air over it until enough water evaporates for the finished honey to be capped. Missouri Extension also estimates that an individual worker contributes only about one-twelfth of a teaspoon of honey during her lifetime, meaning roughly 12 average workers’ lifetime production would equal one teaspoon. These figures are useful illustrations, but actual results change with forage quality, flight distance, weather, colony strength, and nectar losses during processing. [10]
Conclusion
The worker honey bee is created from a fertilized egg whose larva receives a restricted worker-feeding program after its earliest days. An unfertilized egg produces a drone, while a selected fertilized female larva receiving abundant royal jelly in a queen cell develops into a queen. After emerging, a worker progresses from cleaning and nursing to comb construction, food processing, queen care, guarding, ventilation, and foraging. During her final working period, she may visit thousands of flowers per day while gathering nectar and pollen. The production of a single teaspoon of honey can represent roughly 30,000 flower visits and the combined lifetime contribution of about 12 workers. The result is not the accomplishment of one insect but of a highly organized colony in which workers feed every developing bee, care for the queen, preserve food, apply protective propolis, and perform nearly all of the labor required for colony survival.
Related Beekeeping Guides
Beekeeping the Right Way for Pollination and Colony Stability (Pillar)
Large Beekeeping Systems Pillar: Stability and Performance Optimization of Colonies
Advanced Beekeeping: Productivity and Colony Health
Insects and Pollinators — USDA Natural Resources Conservation Service
References
[1] Penn State Extension. “An Introduction to Queen Honey Bee Development.”
https://extension.psu.edu/an-introduction-to-queen-honey-bee-development
[2] Penn State Extension. “Honey Bee Genetics Basics.”
https://extension.psu.edu/honey-bee-genetics-basics
[3] Penn State Extension. “A Quick Reference Guide to Honey Bee Parasites, Pests, Predators, and Diseases.”
https://extension.psu.edu/a-quick-reference-guide-to-honey-bee-parasites-pests-predators-and-diseases
[4] Alkassab, A. T., et al. “What About Honey Bee Jelly? Pesticide Residues in Larval Food Jelly of the Western Honey Bee Apis mellifera.” Science of the Total Environment, 2022.
https://doi.org/10.1016/j.scitotenv.2022.158095
[5] USDA Agricultural Research Service. “Quantity and Composition of Food Determine Honey Bee Queen and Worker Development.”
https://www.ars.usda.gov/research/publications/publication/?seqNo115=348636
[6] U.S. Food and Drug Administration. “Helping Agriculture’s Helpful Honey Bees.”
https://www.fda.gov/animal-veterinary/animal-health-literacy/helping-agricultures-helpful-honey-bees
[7] Wright, G. A., Nicolson, S. W., and Shafir, S. “Nutritional Physiology and Ecology of Honey Bees.” Annual Review of Entomology, 2018.
https://pubmed.ncbi.nlm.nih.gov/29029590/
[8] USDA Agricultural Research Service. “Propolis.”
https://www.ars.usda.gov/research/publications/publication/?seqNo115=358897
[9] USDA Agricultural Research Service. “Propolis Counteracts Some Threats to Honey Bee Health.”
https://www.ars.usda.gov/research/publications/publication/?seqNo115=339140
[10] University of Missouri Extension. “Honey Bees as Pollinators, Their Habitats and Products.”
https://extension.missouri.edu/publications/m403