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do mites spread to other hives?

6K views 17 replies 6 participants last post by  Solomon Parker 
#1 ·
No more bragging for me--one of my hives has taken a significant dip in population and I went through it today to condense them down because there was too much comb for them to take care of. Now it has 10 frames fully populated and good amount of brood, and 2 medium frames of honey and pollen, and the balance is empty frames in the medium. In combining, there was an errant piece of brood comb which I cut out and it had 5 capped drone cells on it. When I was all done with the hive I checked those 5 drone cells and 3 of 5 had mites. :(

The hive is about 3 feet, then 5 feet, 7 feet, from other hives. Do I need to worry about mite spread? In this small area of 5 hives I've noticed starting since last fall they are not doing as well as 5 hives about 50 feet away. The only mite checks I ever do is the drone cell check, which last fall every hive was fine. I don't treat, obviously. Any advice?
Thanks.
 
#2 · (Edited)
From what I've read, yes, mites spread. They catch a ride on other bees, even when the bees are just out foraging. They are known to fall on your bottom board and then reenter the hive on another bee that passes by.

I have one hive that was loaded last year. Then it improved after I did a cutdown split. Have not done a count this year yet. Am anxious to know what's what. It is an obviously diminished hive however. Oddly, my 2 other hives about 20 feet away were fine. But also younger.
 
#11 ·
I have one hive that was loaded last year. Then it improved after I did a walkway split.
This is a thought that confuses me a bit, and I'm hoping someone here can help me think about it. I can see that mite counts should drop in the part of the split which goes queenless during a walkaway split, as there will be a fair period of broodlessness. But, how will this help the queenright hive? The queen keeps laying and the mites keep growing. What am I missing?
 
#4 ·
All hives have mites. All hives share workers and drones (therefore mites) with other nearby hives. So don't worry about it, it's already done. The solution is having bees that can deal with them. If this hive is in bad shape, consider requeening or merging it with another more successful hive.
 
#9 ·
understood, treatment free... that can be powdered sugar drone removal, queen removal....I consider those also treatment free.

As to Weavers, I bought 4 last year, so far no differences in mites them seem okay, but there not mite free anymore than some of my other hives.
 
#14 · (Edited)
Ah, that makes more sense - I think. I'm still a bit puzzled on how the queenright half (the nuc?) would knock down mite levels since the brood cycle isn't broken. That part (if I understand a cut down split right) has the queen and plenty of open brood. Wouldn't that make for excellent mite habitat? Open cells with developing young bees is what they're looking for, right?

Is the idea that most of the nurse bees stay with the sealed brood and most mites are on nurse bees or in sealed cells, so you just drop the overall population of mites in the queenright hive?

Sorry if I'm being a bit dense today. I'm just trying to think toward the future to think about how one can use splits to control mites - hopefully without impacting the honey crop too much.
 
#15 ·
uber, the mite situation improved in the parent hive. I didn't address the new nuc... but that's a good, provocative question which I am not sure of the answer. Your logic seems right to me, however. When I did the cutdown split - my first - my attention was focused on the mite infested hive.
 
#16 ·
I may do a cut down if in a week or two the hive continues to dwindle. The bees do not die until after they emerge, correct? I'm not quite as worried now thank you.

I also wondered, what if I remove the queen, put her in a cage, then use her for splitting a strong hive, that would accomplish the same thing and eliminate the problem of the queen right nuk having the heavy mite load?
 
#18 ·
I also wondered, what if I remove the queen, put her in a cage, then use her for splitting a strong hive, that would accomplish the same thing and eliminate the problem of the queen right nuk having the heavy mite load?
You can do that, but the queen is the problem. If her daughters are not good at taking care of mites now, they will be just as not good in any hive to which she is moved.
 
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