Bees keep leaving the hive

[CreamPuffFarm]

I posted this in the general part of the forum, then thought it might be better here. Sorry for the repeat.

My friend has a top bar hive, made out of reclaimed barn wood. Unpainted, sprayed with lemongrass oil. She has twice put bees in, first a package and then a caught swarm and they have both left in a matter of less than two days. The only thing we can figure is she noticed yellow jackets/hornets harassing her in her garden and followed it back to her shed. Would a nest of these keep the bees from staying?

The first time she thought they were too hot because she forgot to open the bottom. With the second one, the bottom was opened (screened bottom), so I don't think that was it. She got the swarm on Thurs night and it did get real humid here over the weekend. If so, does a top bar need to be in the shade more so than a Langstroth hive?

She and another couple built several top bar hives (9 or 10) out of the same wood. The other family has started their packages and report no problems. I, too, wondered about the wood at first, but that doesn't seem to be causing any issues with the other family (different location).

[Keefis]

Just to be sure... is all of the wood sprayed with the lemongrass oil? whats the deal with that anyway?
The hornets will easily demolish a bee hive if they find it so definitely get rid of the hornets.
There is a video on youtube 30 hornets vs 30000 bees.
If you watch this video you will forever kill every hornet you see.. Even if you are a buddhist.

[CreamPuffFarm]

I guess the lemongrass oil is sometimes recommended to entice a swarm to stay. I've read about it, too, but haven't used it. I didn't ask her exactly where she sprayed it, I just assumed inside.

She just now told me that they aren't hornets, but are bumblebees. Would moving the hive 1/4 mile away be beneficial until she can deal with this problem?
(P.S. I'm a Baptist, but I'd still kill hornets.)

[robherc]

If they're bumbles, they won't harm her honey bees...just compete with 'em for pollinating rights a bit...so no, they don't explain the abscondings at all.
After your reply on the other thread, the LGO is gonna have to be my #1 suspect...using too much can be worse than using none.
Also, as Raider Sidetrack said, SBBs left open can cause abscondings, especially in TBHs...I give mine "better ventilation" by using top entrances, and allowing a Langstroth-like "bee space" between & above the Top Bars...and I coat both the top & bottom of the lid with tinfoil for insulation...it gets REALLY hot in a wooden box in direct sunlight down here!

[tsk]

The 30 hornets vs 30k bees video is a japanese hornet or something that's the size of your hand (I think it's 4" long). That's not a normal "United States" hornet.

Just to be sure... is all of the wood sprayed with the lemongrass oil? whats the deal with that anyway?
The hornets will easily demolish a bee hive if they find it so definitely get rid of the hornets.
There is a video on youtube 30 hornets vs 30000 bees.
If you watch this video you will forever kill every hornet you see.. Even if you are a buddhist.

[BeeTech]

The 30 hornets vs 30k bees video is a japanese hornet or something that's the size of your hand (I think it's 4" long). That's not a normal "United States" hornet.

Probably came from a nuclear bomb test or something.

[CreamPuffFarm]

It sounds like the LGO is the problem. I will ask her how much she used and if she has one that is not sprayed she can try again with.
Thanks for all the replies and suggestions.

[Michael Bush]

Four drops of LGO is plenty. More is too much. Less won't hurt. A couple of bottles of rubbing alcohol might help wash out the LGO and then leave it in the sun until all of that evaporates.