The amount of Ethanol in the MTA mix is very small, if read the entire post on MTA, you’ll see this part
“Use of ethanol vs isopropyl is primarily because the ethanol-oil combo is better at getting through the insect cuticle AND ethanol is actually utilized by the plant cells to form carbohydrates so it’s kind of a win-win !”
The diluted ratio/amount is so small as to not harm the trichs to any discernible degree…
Probably true, yep - it’s only ~10% of the concentrate and the concentrate’s applied at ~1.5%, so you end up with about 0.15% ethanol. Even the most desperate alcoholic would never turn to it for a buzz. Ethanol does dissolve trichomes though, just figured that deserved a correction. I doubt the MTA has enough of it to seriously impact the potency unless you’re spraying really heavily.
I mentioned that about all alcohol in general, but like i said, it’s such a small amount, there really isn’t any cause for concern. I also ran a test to see for myself, lol After spraying some full term bud, I used a scope/light no trichs damaged.
Spider mite drown when you use a wetting agent (yucca) normally the hairs on insects allows them to form a protective bubble using surface tension, adding a wetting agent robs them of that ability and they get wet.
Afaik most insects breath through there body and cannot afford to get wet or they suffocate?
If you see springtails in your suacer or tray try a drop of wetting agent and watch them fall straight through the surface and die.
I don’t use soil but I’d like to find out if a wetting agent made any impact on other pests?
I had a battle with fungus gnats last winter in my tent. I must have had a resistant variety. I tried mosquito bits and the donuts, didn’t bother them one bit, they kept breeding. The sticky traps were covered with the flying adults. Tried letting the top layer of promix dry out in between waterings. You know when the soil shrinks a bit around the outside edge of the pot? We’ll the gnats just went down there to the moist soil and laid more eggs. Party time again.
So I tried bottom watering into the saucers the pots sat in. In between waterings I could see the gnats going in the drain holes of the pots and laying eggs there. More breeding.
Next I thought I was smart and bought some panty hose (large size) 
to put around the bottom of the pots. This didn’t work. Somehow they were still multiplying. Maybe back down the sides of the pot.
I ended up just tolerating them. I don’t think the mature plants were bothered by them. There’re just an annoying pest to have flying around.
The adults don’t care. The babies do. I learned not to put seeds directly into the soil, for sure. 
I got some beneficial nematodes and rove beetles and wiped out at least 99% of them. I keep innoculating pots by moving soil around, and I maintain just enough gnats to keep my now-tiny rove beetle population from extinction, but not enough to cause problems.
A layer of horticultural sand on top helps seal those gaps.
Sand mulching works pretty well too, though it’s still pretty hard to keep them from laying eggs in the drain holes. I once tried packing sand in the bottom of pots but that turned out to be too messy and didn’t work all that well.
My buddy over at Riu uses a weed smothering material fixed over the pots, water passes through it for watering and it stop anything getting in or out.
I’ve also seen folk’s using women’s nylons/tights over airpots.
Diatomaceous earth neem oil and the bits will kill them, you just need to stay w/it and use multiple things back to back. You’ve got to kill them all, not just knock them back and weaken them to the brink of death only to let off and leave them to recuperate back to or stronger than when it started. Gnat are my biggest problem. There is a hole someplace in the roof of the apartment building I live in that allows the insulation to get soaking wet. When we get rain, like clockwork, the gnats follow in about 6 days, and they swarm everything. It takes about another 2 weeks to kill them off except for a few stragglers who will die off w/o laying eggs. The Diatomaceous earth has to stay dry to work. Once it gets wet it is no good at stopping the bugs any longer. Good luck, when they are gone your plants will really shine. I’ve always felt gnats did way more damage than most think. I also find them more difficult to deal w/than thrips. Just my opion. Good luck and happy growing.
“Arbisco.com” might be of some help , they handle many pesticide products (very helpful)
[quote=“hawkman, post:31, topic:130210”]
“Arbisco.com ” might be of some help
[/quote] Fixed the link for you.
Thanks for helping me out !!! Peace
The cheapest, reusable, mulch I found to use is coco husks/chips.
