My queens keep dying

[Ben Framed]

What's the liquid sevan ?  That is supposed to be gone in so many hrs.  I've always read that poisoned bee's. You'll have big kill rate

How to Mix Liquid Sevin
Written by Shelley Marie; Updated December 29, 2018
How to Mix Liquid Sevin
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Mixing Instructions for Diazinon 500
Sevin liquid concentrate is made from carbaryl, a broad-spectrum insecticide designed for use on vegetables, fruits, small trees, flowers and shrubs. Carbaryl kills insects by disrupting their nervous systems. It's effective on more than 100 different types of pests and is one of the most commonly used pesticides in the United States. Mixing and application rates vary depending on the type of plant that requires treatment. It's best to apply liquid Sevin on days with calm winds and when no rain is expected for at least 24 hours.

[Ben Framed]

"I believe the problem is already known:  neighbor that cool watches: spraying ALL OVER.

Sorry, Cool, you deserve better neighbors."

Van are you sure about this? What type pesticide singles out and only kills the queen bee? May be that the neighbors are decent folks. Alan maybe you can have a talk with these folks and find out what it is they are using that may only kill queens? Personally I am departing from the pesticide theory until we know more. There must be another reason or answer?

Phillip

[CoolBees]

At my local Hone Depot, there are numerous Sevin products, not just liquids.

I assumed Sevin was the cause of the queens dying, but I have no actual knowledge of that as the specific cause. That's why I posted here - hoping someone might know.

Right now, I'm under the assumption that it is "some chemical agent" causing repeated queen failure.

My home apiary is about 1.2 miles from this [problem] site. I don't have this problem with queen loss at my house.

[Donovan J]

Maybe another hive in the area is diseased and the drones that are mating with the queens are passing the disease on, therefore killing the queen. I might be completely wrong but this seems to be the only reason.

[The15thMember]

My home apiary is about 1.2 miles from this [problem] site. I don't have this problem with queen loss at my house.

That seems really strange to me.  That means that your home bees are close enough to be potentially foraging on the same plants as the bees at this troublesome site.  That makes me think that it may not be something environmental.  But I don't have any idea really, just kind of thinking out loud here. 

[CapnChkn]

Personally I am departing from the pesticide theory until we know more.

Since the city here sprays, I also thought the pesticide issue was part of it.  I don't know if the problem is the pesticide.  I verified with all the neighbors that they were not using excessive pesticide, and most used nothing.  On the other hand, I have had the worst problem with my Purple Martin Gourds, because there's no night flying insects to pollinate them.

They spray at night, it seems to not effect my bees.  It's a Permethrin based chemical, so at least I can claim my seed is grown organically.