What killed my colony???

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Looks like it became queen less and colony slowly dwindled in the autumn. Snelgrove is right re drone comb but there is not a huge amount, but bees didn't keep them warm, thats why they never hatched.Last main load of bees look as though they died of starvation.

Looks like its been on the decline for a while. Bees at the bottom under the ,middle frame, frame 5 and 6 havent cleaned out the dead bees so i would say since October/ November!
The Hive is full of what looks like maggots and Caster, which is the maggots when they start to pupate. The colder weather will have virtually stopped them.

It is just possible that you might have had what looks like "Sac brood:, in the middle of some of the cells, in the cose up pic, but its so difficult to tell because its also full of maggots.
Dont be Disappointed, its a perfectly normal dead hive. It certainly happens.
You can clean it all out, sadly the frames dont look very salvageable to use for swarm trap next year. Theres also bound to be some wax moth lurking around there too.
Clean it all out, blow torch around the inside of the hive.
If you can afford new frames, then chuck out 5 of the worst, keep the remaining 5 and clean them up by cutting out the wax and putting them in a bucket of bleach.
When you receive another swarm, it should come on another 5 frames, so you will quickly have the full compliment.

Just to add, Ive just looked at your two middle frames again, and if you look at the bottom bar, and underneath that, you will see your bees built a raft under the frame, as your queen was running out of space in the spring summer build up.
Theres nothing wrong with this, as long as you are aware of it next time. It can fall off and often its loaded with done comb, so some people like to remove it as a varroa control.
You can use this as a sign your brood nest may be struggling for space, so you can reverse brood (if your running double brood boxes or keep an eye out for swarm preparations, or make an artifcial swarm, because to do this you will have had a lot of bees in that colony. They only build under the frames when everything is really prolific !!
Its not nice to see this, but you've probably gained a lot of info! and also, i doubt you did anything wrong, if you did you will never know!! put it down to experience!!!!
You did say anything else might be a help!!

Best of luck when you get a new swarm!!
 
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Looking at those bees, doesn't look like there is much 'black bee' genes showing. Are you sure your records are right?
 
My original colony (black bee) that i purchased last year with a 2 or 3 year old queen swarmed. the hive that died is the swarm from that hive.

From your images bees do not look particularly black... swarmed queen 3+ odd years old, I requeen my yellow stripeys at 3 years old as they are probably running out of sperm as very prolific bees.....
Amm queens a bit more frugal and can go on for 5+ years


Looks like there was just not enough bees to get through the Winter and they just went tits up I am afraid.
Not your fault, but it is a good plan to try to go into winter with strong well fed and provisioned colonies.
Chin up.... Spring is on the way!!

Yeghes da
 
Thanks for all the comments.

Having had a look at my inspection notes its not the black bees after all. that queen is still going strong and that hive is the feistiest.. not sure what one this now! eek. have to brush up on my record keeping. If they aren't black they will be buckfast.

the frames in the pics are the worst. they have been removed (5 in total) and the rest are sitting in the hive awaiting cleaning. its a poly hive so will clean it with bleach and torch the frames and put in new foundation.

I have 4 other hives so can use the equipment to catch a swarm or split a colony if it builds up well in the spring.

Just seems weird that they had a whole super of untouched stores and the frames 1,2,3,9,10,11 of the brood box all had good stores also.

Once again, thanks for all the detailed, knowledgeable and prompt replies. Its been a great help!
 
Hi Lal
Don't beat yourself up about it, ive done the same a year or so ago, ive had one colony this year that's died out due to starvation, and ive been feeding/looking at them every fortnight !
just learn from it, I know its a hard lesson.

Dave
 
yeah its a good lesson.

i guess i have been slack with inspections and hefting over the winter so could have missed something. Its just hard when you arent exactly sure what you should be looking for even when you know the rough process.

But my chin is certainly up, cant wait for the weather to warm up and have a good look inside the other hives!
 
Thanks for all the comments.

Having had a look at my inspection notes its not the black bees after all. that queen is still going strong and that hive is the feistiest.. not sure what one this now! eek. have to brush up on my record keeping. If they aren't black they will be buckfast.

the frames in the pics are the worst. they have been removed (5 in total) and the rest are sitting in the hive awaiting cleaning. its a poly hive so will clean it with bleach and torch the frames and put in new foundation.

I have 4 other hives so can use the equipment to catch a swarm or split a colony if it builds up well in the spring.

Just seems weird that they had a whole super of untouched stores and the frames 1,2,3,9,10,11 of the brood box all had good stores also.

Once again, thanks for all the detailed, knowledgeable and prompt replies. Its been a great help!

One of the biggest "winter losses" is certainly not winter losses. This is just my opinion, so others shoot me down by all means , but many hives become queen less in early to late Autumn probably through no fault of the beekeeper and unfortunately, an inexperienced beekeeper might not just notice this until the following late winter, when there is suddenly no bees on a cleansing flight, whereas other adjacent colonies are buzzing!!
Whether its AMM Wild, Feral or buckfast, Or buckfast requeened after second year without the beekeepers knowledge, there all still bees and all subject to the same problems. You can have the best genetics in your stock but they can still dwindle and die so , dont worry!!!!
 
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yeah. all hives on brood and a half with no queen excluder.

I think the diagnosis of failed queen in late autumn is spot on, i was having issues with one hive and had failed requeening attempts which i thought i had sorted out. cant remember if it was this hive but could easily be a failed mating autumn queen.

i will keep better records this year and try to ensure they are stronger going into winter.
 
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