LESSON 112: The Sticky Subject Of Propolis
(I’d like to thank some of our top bee experts in the country who spent time feeding me great information in preparation to this lesson. I’ve added their names at the end of this lesson.)
When we think of products from the hive we are most familiar with honey, wax and maybe pollen. But two more products from the hive are more obscure to us, royal jelly and propolis. Today, we’ll take an in depth look at propolis. Soon we’ll take a look at royal jelly.
If you have ever opened a hive of honey bees you have encountered propolis. You probably still have some on your bee suit. If you have a hive that produces copious amounts of propolis then you know what it’s like to fight gummed up frames and lids. Caucasians bees are known as excessive propolizers.
Propolis is sticky and it makes hive inspections more challenging. If you work your hives bare handed like I do, then you know what it feels like at the end of the day to have your fingers coated with propolis. All the dislikes aside, I love the appearance and smell of propolis. Each year I scrape off propolis and keep a ball of it handy to use in our queen rearing operation, to help set the cell cups and bars tight in position.
What Is Propolis And Where And How Do Bees Gather It?
They pass the propolis from their mandibles to their forelegs, then to the inner surface of the middle leg or basitarsus. Here the propolis is packed into their pollen basket or corbicula on the back leg. When the foragers returns to the hive loaded with propolis, they go to the area of the hive where it is most needed.
How Is It Used In The Hive
Tests are being conducted to see if coating the insides of hive boxes improves the overall health of the colony. Many people are now recommending that we score or scratch the smooth service of the insides of our hives, forcing the bees to add propolis as they would in a natural hive in a tree. Bees also add wax to comb to give it strength. It is believed by some that house bees use propolis to polish brood cells between brood cycles.
It has also recently been discovered that bees will imprison small hive beetles in propolis jails by trapping SHB with walls of propolis. Unfortunately, every time we open a hive we release small hive beetles from their propolis jails, and even if we didn’t, the beetles have learned to rub their antennas with the bee and trick the bees to feed them while in jail.
How To Harvest Propolis From The Hive
Propolis can simply be scrapped from frames, lids and hive boxes. When I harvest propolis in this manner, I am careful not to also scrape up bee parts, paint or wood into my propolis. It can be filtered out, but it saves me time gathering the purist of propolis.
Health Benefits Of Propolis
Acknowledgments:
In preparing this lesson on propolis, I learned so much. Most of the information on propolis was easy to research. But, in one area I hit a wall. I’ve always heard that house bees coat or polish brood cells with propolis between brood cycles. But as I read through books and literature I could not find a definite citation proving bees coat or polish brood cells with propolis. I found several websites that support the idea, but just because a website mentions something does not lend enough support. I contacted my friend and bee expert Jon Zawislak, at the University of Arkansas Extension, a fellow EAS certified master beekeeper and he flooded me with propolis papers and research, but he could not find a solid citation for house bees using propolis to coat brood cell linings. I then contacted David Tarpy, at North Carolina State University. He could not find an answer for me off the top of his head and said he would mention it to the world renown authority on propolis, Mike Simone-Finstrom. Mike was kind enough to flood me with many studies and his own thoughts that there is no studies verifying the use of propolis to coat individual cells between brood cycles. Jim Tew also sent me his extensive thoughts on whether bees add propolis to brood cells as did Diana Sammataro, and Keith Delaplane. Clarence Collison, who writes a column in Bee Culture went out of his way to scan and email me many pages on propolis. Jerry Hayes, the American Bee Culture Classroom answer man also gave me his feedback too. Thank you all!
We all know bees polish cells in preparation for the queen to lay an egg, but is it truly propolis that is used in the polishing stage? I think it is safe to say that it is believed that housecleaning bees coat the insides of their brood cells with propolis between brood cycles.
Thanks for joining us for another beekeeping lesson from Long Lane Honey Bee Farms. We appreciate your business, so please give us a call to let us help you enjoy beekeeping to the fullest.
David and Sheri Burns
Long Lane Honey Bee Farms
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