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~ The more I studied beekeeping, the less I knew, until, finally, I knew nothing. But, even though I knew nothing, I still had plenty to unlearn. Charles Martin Simon

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Daily Archives: August 27, 2021

The Rule of 72 and Mite Control

27 Friday Aug 2021

Posted by Beekeeping365 in beekeeping, varroa, varroa destructor, varroa mites

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beekeeping, rule of 72, varroa, varroa destructor, varroa mites

exponentialgrowth

The rule of 72 and mite control.

The rule of 72 is a financial rule of thumb that says that 72 divided by an interest rate will tell you how long it takes for any given amount of money to double.

There are a lot of factors involved but this is also true with many other things in life. For example, we could determine a similar calculation for mites in honey bee colonies.

How is this relevant? The relevance is in the doubling effect. A financial planner will tell you to start saving early for this reason. No matter how much, or little, it matters to start early. Why? To get more doublings.

Your first year’s savings may take 7 years to double. That may be doubling from $1000 to $2000. Not much in the big picture of retirement, huh? But remember there’s another $1000 for each year you saved after your first year. And so it goes. Compounding takes effect and the total grows.

In ten years lets say you have$15,000. That $15,000 doubles in another 7 years plus any additional you have added. By the second doubling you’ll start to see the effects of compound interest.

So, here’s the kicker. By the time you are ready to retire, let’s  say you have $500,000. That’s great but what if you had started 7 years earlier? Think about this. The answer is you’d have another doubling in the equation. That’s right, $1,000,000. The big One Million. Or an additional $500,000 in just seven years. Crazy huh?

And to the point of this post. A mite population has a rule of 72 which can be calculated by it reproductive rate. What does that mean when it comes to mites? It means, just like the rule of 72 and money, it isn’t the first doubling that kills the colony, it’s the last doubling. Now doesn’t this explain some things that sometimes seem unexplainable? Like sudden colony crashes and what appears to be abscondings? That last doubling is simply overwhelming. The viral load transmitted by the mites becomes unsurvivable by the bees. Of course, with bees, the rule of 72 with mites in beehives has a limiting factor – the survivability of the bees.

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Happy Birthday George W. Imirie, Jr.

27 Friday Aug 2021

Posted by Beekeeping365 in beekeeper, beekeeper education, beekeeping, birthday, birthdays, management

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beekeeping, management

Birth: Aug. 27, 1923
Death: Aug. 6, 2007

​imirie1By Patricia Sullivan

Washington Post Staff Writer
Saturday, October 6, 2007

George Wady Imirie Jr., 84, a master beekeeper who tirelessly promoted the value of bees and beehives, died of congestive heart failure Sept. 6 at the Casey House in Rockville.

As a beekeeper since 1933, Mr. Imirie knew enough about the stinging insects to brave the swarms at his Rockville home without the usual head-to-toe beekeeping garb.

“Bees don’t like socks, especially woolly ones,” he told a reporter in 1997. “A hat is a good idea, because if a bee gets tangled up in your hair, it’ll sting you. I don’t wear a shirt, because that way, if a bee is on me, I can feel it and brush it away.”

Far more than stings, Mr. Imirie worried about the decline in bee colonies over the past several decades, infestation of the wild bee population by mites, and the level of knowledge and skill of those who keep apiaries.

“He definitely was someone who didn’t feel it necessary to tolerate any ignorance around him,” said Marc Hoffman, a member of the Montgomery County Beekeepers Association, which Mr. Imirie founded. “He would interrupt someone to ask, ‘How many hours is it before the larva emerges from the egg?’ and you’d better know the answer.”

But he also shared his knowledge, writing an opinionated and blunt newsletter called the “Pink Pages,” which addressed how to prevent swarming, how to prepare in fall so bees would overwinter well and how to deal with pests. The newsletter was read by beekeepers around the world. He coined a phrase now popular in bee circles, “Be a bee-keeper, not a bee-haver.”

In addition, Mr. Imirie and his sons thrilled Montgomery County Fair visitors and schoolchildren with demonstrations with a live hive of honeybees.

A Bethesda native born to a family that has been in the area for 298 years, Mr. Imirie started tending hives at age 9, following in the footsteps of his father and grandfather. He dropped the hobby when he went to the University of Michigan for his undergraduate degree.

He was studying for a graduate degree in atomic engineering when World War II broke out. He was briefly in the Army, then joined the Manhattan Project in Oak Ridge, Tenn., and Los Alamos, N.M., working on the atomic bombs that were dropped on Hiroshima and Nagasaki.

After the war, he studied engineering at Washington University in St. Louis and American University, one of his sons said. Mr. Imirie returned to Bethesda and helped run the family auto parts business for most of his working life until it was sold 18 years ago.

Mr. Imirie resumed beekeeping on his six-acre property in Rockville. He set up the hives in a square around a gnarly old apple tree. A hedge trimmed to a height just taller than Mr. Imirie surrounded the yard so that when bees emerged from the hives in search of nectar they would fly high enough to clear the bushes and avoid bystanders.

He founded the beekeepers association in the 1980s and for many years ran it almost single-handedly. After five strokes in 1990, Mr. Imirie began using a scooter. Throat cancer further slowed him in the late 1990s.

When Maryland agreed to produce auto license plates with a beekeeping insignia, Mr. Imirie was given the prototype, BEE 001, which he affixed to his scooter.

The association named its annual award for education after him.

Source: http://www.washingtonpost.com/wp-dyn/content/article/2007/10/05/AR2007100502370.html

Birth: Aug. 27, 1923
Death: Aug. 6, 2007

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