Debating on late season split large hive

[The15thMember]

When to treat depends on what you are using. Some types of mitacide strips can adversely affect the hive while other treatments are a lot less detrimental to it's growth. I would treat after splitting once they have stabilized and the queen is laying.

Planning on using Formic Pro

Austin I will not say much on this, but I will say, being its August I would not recommend using formic pro. Formic is very effective but also very tricky and contradictory to queens when its hot weather. (Just what you do not need in my opinion).You might want to heed the advice of others, before you use Fromic Pro in August. There has been several topics started or discussed on this subject, even since my short time of beekeeping here. Check the archives; Or even better, you may hear from some of our friends and old pros here at beemaster chiming in for your aid...

I've used FormicPro several times, and all with good success.  I'm planning on using it this year again as well.  I have never used it on a split-sized hive or a nuc, so I can't speak to that.  I would definitely wait for temperatures toward the lower end of the recommended spectrum.  I have only ever used it in the fall, with temps in the 70's or high 60's, and I've done well with it, but as many people have complained about the product being overly strong, I'd be slow to use it at high temperatures, since the temperature affects the release time of the vapor.   

[Ben Framed]

When to treat depends on what you are using. Some types of mitacide strips can adversely affect the hive while other treatments are a lot less detrimental to it's growth. I would treat after splitting once they have stabilized and the queen is laying.

Planning on using Formic Pro

Austin I will not say much on this, but I will say, being its August I would not recommend using formic pro. Formic is very effective but also very tricky and contradictory to queens when its hot weather. (Just what you do not need in my opinion).You might want to heed the advice of others, before you use Fromic Pro in August. There has been several topics started or discussed on this subject, even since my short time of beekeeping here. Check the archives; Or even better, you may hear from some of our friends and old pros here at beemaster chiming in for your aid...

I've used FormicPro several times, and all with good success.  I'm planning on using it this year again as well.  I have never used it on a split-sized hive or a nuc, so I can't speak to that.  I would definitely wait for temperatures toward the lower end of the recommended spectrum. I have only ever used it in the fall, with temps in the 70's or high 60's, and I've done well with it, but as many people have complained about the product being overly strong, I'd be slow to use it at high temperatures, since the temperature affects the release time of the vapor.   

Good advice Member, from what I have gathered...

[AustinB]

I've used FormicPro several times, and all with good success.  I'm planning on using it this year again as well.  I have never used it on a split-sized hive or a nuc, so I can't speak to that.  I would definitely wait for temperatures toward the lower end of the recommended spectrum.  I have only ever used it in the fall, with temps in the 70's or high 60's, and I've done well with it, but as many people have complained about the product being overly strong, I'd be slow to use it at high temperatures, since the temperature affects the release time of the vapor.   

15th - Thanks for the info. I've been doing a lot of reading past few days on FP and seen reviews from all over the spectrum as you can imagine haha.
I know a lot of people treat in the July-August timeframe. Is there a downside to treating later towards the fall when the weather cools?

[The15thMember]

15th - Thanks for the info. I've been doing a lot of reading past few days on FP and seen reviews from all over the spectrum as you can imagine haha.
I know a lot of people treat in the July-August timeframe. Is there a downside to treating later towards the fall when the weather cools?

Well obviously you want to treat early enough that you have healthy bees to raise the winter bees, and if you have a severe infestation the product is less effective at lower temps.  But that said the product is very potent, even penetrates brood cappings, and I have personally used it on pretty bad infestations in lower temps and had it work fine.  I will be looking for consistent highs in the low 70's to treat this year.