If those water droplets are forming on the leaves then the humidity is too high imo, in my experience reaching the dew point in any stage besides some methods of cloning is not a good thing and can lead to many problems.
If the plant has been inside all or most of it's life it might not be acclimated to the full strength of the sun. If it is mainly indoor you'll have to harden it off, place it in the shade for a week before giving it full sun. In Colorado I have to cover my soil outside with straw or untreated...
There's a lot going on in teas, this is a great read to really understand what's going on.
https://www.amazon.com/Teaming-Microbes-Organic-Gardeners-Revised/dp/1604691131
there is also a teaming with fungi book that's dope too.
An easy but effective alternative to brewing your own tea is using...
I wouldn't spray neem that late into flower or at all. Feeding spinosad as a drench to kill all the eggs you have in the soil has been known to work for some people and spraying the foliage with green cleaner. Make sure to keep your grow space really clean, removing any dead plant matter around...
Could try dunking your clones in oxidate at 2mls a gallon before you put them in a plug. I havn't had a clone die on me in months after I started that regime.