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Today day is cool and dull again. Fall is here.
Take care of the luxuries and the necessities will
take care of themselves.
Today looks brighter. I spent the morning trying to figure out what is the reason for the increasingly obvious declining ability of Apivar to control varroa as well as it did when we first began using it in Alberta less than a decade ago.
Back then, Apivar was a silver bullet. Now, we are seeing hives with high levels even after the exact same Apivar treatments that resulted in zero levels in alcohol washes we did on entire bee yards years ago.
What is happening?
It is expected that over time, the efficacy of any single varroa treatment will decline as the pest adapts to the poison, especially if the treatment exploits a single, fairly simple metabolic mechanism in the pest, so we can assume that the pest is adapting to Apivar.
I asked Medhat if Apivar is failing and he reported as follows:
I don't know what the efficacy in the Pettis test (a quick test for mite susceptibility) was five or ten years ago, but I got to thinking and realised that even a decline of a few percent in efficacy of a highly effective control can make a huge difference. If it was typically 98% at one time, a decline to 90% would have a huge effect over a few seasons.
At 98% efficacy, mite levels decline over the seasons. At 95% efficacy, one treatment a year holds levels steady. At 94% and less, the levels increase over time with only one treatment a year. Although this is a very simple model with many flaws, and a long essay could be written about the various factors which will determine actual real-world results, it isolates this one factor sufficiently that we can see how seemingly tiny efficacy declines can mean failure of a formerly successful treatment regime.
After a day at the desk, I was feeling poorly in the afternoon and wondered if my heart was giving me issues. I considered going to town to have it checked out, but decided that doing so is a huge hassle and to see what developed. Other than feeling poorly and having a few pains that came and went, nothing developed, so I went for a one-mile walk. I figured if I have issues that should make them obvious, but the walk went normally and maybe I am just suffering from sitting and lack of exercise.
Grown-ups never understand anything for themselves,
I woke up early today and finished yesterday's project and finished that entry.
The spreadsheet imaged below is very important IMO for understanding why beekeepers across Alberta are finding that Apivar is not providing the control we have come to expect.
Another question: does efficacy in a hive vary somewhat depending on the total mite load, or is it the same whether the hive has a 1% or a 20% infestation?
I did some more deskwork and filing. I'm almost done. I also finished the registration form for the rendezvous and sent it to Staples to print 70 copies. I'll pick them up tomorrow on the way to the meeting.
I felt crappy all morning and into the afternoon, so after I did all that, I decided to go to Drum to get a few things and get out of the house. I needed a few things like oil filters and the light bulbs for my van.
A few hours later, I returned home feeling much better.
After supper of fruit -- grapes and strawberries -- I watched two episodes of Longmire and went to bed. I have now run out the entire Longmire series.
Humanity is acquiring all the right technology for
all the wrong reasons.
I have lots to do today. Oil change, shovel coal and ashes, housework, water plants, packing... and the Bluewater Cruising Association meeting tonight.
I changed the oil in the Marquis and the bee truck, but found the van was still okay for a while. I notice the van's gas tank is completely empty now, so am wondering is the tank leaks. I thought I had a quarter tank the other day.
Maybe not. I went out and checked the odometer and then my record of the last fill and that was 634 km (396 miles) ago. A typical vehicle has a tank designed to go 400 miles, so by my reckoning, I should be empty.
I finished my chores and drove to Calgary, stopping to pick up the registration forms at Staples on the way in.
The meeting was routine and I returned home by eleven.
It is a paradoxical but profoundly true and
important principle of life that the most likely way to reach a goal is
to be aiming not at that goal itself but at some more ambitious goal
Today, I weigh 220. I see my weight creeping up, even though I have been fairly careful what I eat.
I leave tomorrow and have few things to do before I go. I see the weather over the coming days is looking cooler than previously predicted and I will have to leave the furnace on, I suppose.
I drove to Three Hills to fuel up, then over to Ruth's to drop Zippy off. Sure enough, I had just run the tank nearly empty. No leak.
I returned home, and realigned the headlights on the Grand Marquis. I've meant to raise the beams a bit since the lows are pointed too far down, making it hard to see well at night on the highway when on low beam.
Next, I took the furnace burner apart, did a bit of welding and reassembled it, then had supper and went to bed earlier than I have been lately.
When I was a boy I was told that anybody could
Today, I weigh 219. I'm up early, packing and generally getting ready to leave. My flight is after lunch, so there is no rush.
I left in plenty of time and parked at Park and Jet. With discounts, they are cheaper than the bargain lot and a sure thing. Lately, their shuttle has been very prompt as well.
I went through security and met up with my cousin, Don, who had flown in from Toronto and we caught the next flight top YYJ. At YYJ, Peter met us with the projector and supplies for the rendezvous and drove us to the marina.
We settled into the boat, went shopping, and decided to spend the might at the dock since a storm was predicted.
The day satrted with rain, but cleared, but with strong winds. We left the docks and sailed north. We were almost becalmed, then subjected to gusty winds as we crossed Swartz Bay and tacked to clear Saltspring Island. We reduced to about one third sail and fought shify gusts up to forty knots as we fought our way to the point.
Once clear the point, we could relax a bit as we reached down to Sansum Narrows. As we entered the narrows, the wind died and turned shifty, so we motored through to Octopus Point where the wind steadied and we raised sail again.
The wind was light until we approached Crofton, at which point, the wind became strong and gusty again. We made Thetis Island on one tack and motored in to tie up. Paul met us there and we paid our docking fees and met up with other early arrivals.
We had supper and went to the club room with the projector, bit no one seems to want to show slides and the evening was spent casually in the pub and on boats.
The day began with drizzle that developed into a downpour, but that hardly dampened our spirits. Coffee was served in the club room at nine. Boats continued to arrive all day. By the end of the day we had 30 boats and 52 people registered and the marina was turning away any new arrivals.
We held a swap meet in the afternoon and that was followed by a happy hour and a potluck supper in the club room.
Afterwards, we had two slide presentations to round off the evening.
We had coffee and boat visits and another swap. then the Model Boat race.
After that, we had happy hour followed by a turkey Thanksgiving dinner at 1730. After supper we had a prize draw and I handed out prizes. It was all over around 2000.
In theory, there’s no difference
between theory and practice. In practice, there is.
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