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Most obvious differences between AFB, EFB and sacbrood
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Topic: Most obvious differences between AFB, EFB and sacbrood (Read 5920 times)
Yarra_Valley
House Bee
Posts: 168
Most obvious differences between AFB, EFB and sacbrood
«
on:
August 24, 2007, 08:53:51 pm »
Hi there,
I'm have a little bit of a problem with one of my hives, so I'm going to go through the apiary with a fine tooth comb this weekend. I was wondering what you guys find the easiest way to diagnose these three pests. I've done my research, and come up with the Following:
EFB
Pepperbox pattern
Usually die before being capped
Discoloured larvae, off white. show yellow streaks first, then turn completely yellow
Often twisted and deformed in cell
Melted remains in the bottom of cell
Will not "rope out" easily
AFB
Pepperbox pattern
Usually die once capped or in the late larval stage
Cappings become darker and sunken, in appearance
"Ropes out" easily
Dead pupae lying on back at bottom of cell, with tongue pointing towards top of cell, if often the case
Hard black scale in back of cell, often shiny. hard to remove, queen won't lay in again
Maybe some perforated cappings
Sacbrood.
May appear similar to AFB, however:
Remains won't rope out as easily
Dead scale is easily removed
Tongue won't be pointing towards top of cell
Greater percentage of perforated cells amongst infected cells
Upon close inspection, hardening and discoloration of the cutiles near the head can be seen, once capping remoced
Usually occurs early in season
If you can think of anything else, or can see any inaccuracies, please feel free to help me out.
Thanks,
James.
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TwT
Senior Forum
Galactic Bee
Posts: 3396
Ted
Re: Most obvious differences between AFB, EFB and sacbrood
«
Reply #1 on:
August 25, 2007, 01:51:04 am »
heres all with pictures
http://maarec.cas.psu.edu/pest&disease/pppdIndex.html
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Ken
Global Moderator
Galactic Bee
Posts: 5930
Gender:
Re: Most obvious differences between AFB, EFB and sacbrood
«
Reply #2 on:
August 25, 2007, 07:52:26 am »
AFB infects hive with spores that don't go away.
EFB is a treatable bacteria.
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Michael Bush
Universal Bee
Posts: 19807
Gender:
Re: Most obvious differences between AFB, EFB and sacbrood
«
Reply #3 on:
August 25, 2007, 03:05:11 pm »
Sacbrood are usually inact in a sac, not melted in the bottom.
The other issue is Parafoulbrood which sort of resembles both EFB and AFB.
http://www.bushfarms.com/beespests.htm#efb
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Yarra_Valley
House Bee
Posts: 168
Re: Most obvious differences between AFB, EFB and sacbrood
«
Reply #4 on:
September 14, 2007, 01:31:20 pm »
Well, I lab results back today, and........
its AFB.
yeah, that sucks. And just to make it worse, I have to organise the destruction of my hive from overseas.
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Cindi
Galactic Bee
Posts: 9825
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Re: Most obvious differences between AFB, EFB and sacbrood
«
Reply #5 on:
September 25, 2007, 11:16:32 am »
Yarra_Valley. That sucks, please let us know how you will fare. Sorry to hear about the brood disease in your colony. Have a wonderful day, best of this life. Cindi
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Yarra_Valley
House Bee
Posts: 168
Re: Most obvious differences between AFB, EFB and sacbrood
«
Reply #6 on:
October 16, 2007, 02:35:27 am »
Hi there Cindy, thanks for the condolences. My brother was able to take care of it promptly which was a relief. It nice when someone does something like that for you when you're overseas. It hasn't been found in any of the other colonies which is a blessing.
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Cindi
Galactic Bee
Posts: 9825
Gender:
Re: Most obvious differences between AFB, EFB and sacbrood
«
Reply #7 on:
October 16, 2007, 09:23:48 pm »
Yarra_Valley. Right, I read the post about your brother doing the work, without even having had experience with the bees!!! Yeah!!! Good for him, and I am happy that not all were affected, wonderful and beautiful day in our great life. Cindi
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There are strange things done in the midnight sun by the men who moil for gold. The Arctic trails have their secret tales that would make your blood run cold. The Northern Lights have seen queer sights, but the queerest they ever did see, what the night on the marge of Lake Lebarge, I cremated Sam McGee. Robert Service
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Most obvious differences between AFB, EFB and sacbrood