Fascinating!
@addy1 On your FB post, you mentioned mites. How do you know if you have mites and how can you get rid of or prevent them?
There are a few ways to test for mites. You can take a cup of bees, around 100 put them in alcohol and shake. The mites drop down below the screen we then count them. Under 2 is ok for 100 bees, 3 getting up there, over 5 you need to treat.
Or do the same but with powdered sugar, not as easy to count.
We also cut out drone brood, freeze it then shake the brood out of the cells and count how many mites you see on x brood.
This year I joined a research group out of MD U called the sentinel group. We send one hundred bees, in alcohol to them. They test the bees for mites, tracheal and varroa, also test the bees for nosema a bacteria that gives them diarrhea in the winter.
We grade the brood frames for them, attitude of the hives etc. We test eight of the hives.
No way to prevent them, they spread from hive to hive to hive. If a beekeep near us does not treat his bees can bring mites to our treated bees.
To treat, multiple ways. Expensive strips, most treatments done only after the honey supers are removed.
We use something called oxalic acid vaporization. OA is in the honey naturally, same with broccoli chard, etc.
We vaporize it, the acid crystalizes in the hives, it makes the mites feet release from the bees back, they fall out of the hive and die. When you have brood you need to treat every 6 days for 3-5 weeks to catch the brood hatching. The female sneaks into the cells before the bees cap the brood cell, there they make babies that come out with the bee.
We also use strips, after honey harvest, around $200-400 per treatment (for all the hives) dependent on how many brood chambers we have which ='s how many strips we need.
Any treatment we use is one that is found naturally in the hive and also does not contaminate the wax of the cells. We do our best to keep our hives and honey as pure as possible.
The mite would be like having a dinner plate size mite on your back sucking your fluids. They transmit viruses also, usually that is what kills the hive, to many mites the hive is to weak to make it through winter. The virus causes deformed wings, the bees then can not fly.
this is mites on a pupae (not my pic)
shiny brown spot the mite