I bought a 16oz bottle of insecticidal soap, when I dumped it in the sprayer bottle it wasn't even 16oz. I set the sprayer nozzel as fine as it would go and it only covered my 20 smallest plants and 5 of the arabicums with no leaves, I've got around 50 more large plants, many with lots of leaves left. I'm definitely going to have to pick up some castile soap tonight, based on what that covered I'm guessing I'll need close to gallon to finish up my plants.
Walmart sells their knockoff - www.walmart.com/ip/Dr-Natural-Castile-Liquid-Soap-Unscented-Baby-Mild-32-oz-Soap/814644985 - for $6 dollars less than the dr bronner, from what I can see the only difference is a tiny amount of shea butter and that stuff has 5 different fatty acids in it. The fatty acids are what is doing the work based on what I've read. They dissolve the exoskeletons on the bugs and open their cells up so they just dry out and die 💀
We're in the hottest part of the day right now, I'll wait a couple of hours and go rinse off the ones that I sprayed earlier. Hopefully this will have my plants on the road to recovery quickly
Apparently I still can't post offsite links 🙄