I have some cuttings from what I think is a Brunswick that I have had for about a week and some other English Brown Turkey cuttings  a sweet online friend sent me and I am trying different rooting methods.  I know the English Brown Turkey ones are healthy cuttings, but I am not sure about the Brunswick. I'm not too worried about them, but I don't want mold.

The older cuttings I have are in clear plastic filled with a very loose, heavy on the coarse vermiculite potting mix. It is basically my Square Foot Gardening "Mel's Mix" (1/3 peat moss, 1/3 blended compost, 1/3 coarse vermiculite) with some xtreme mycorrhizal granules added and to maintain humidity, I put an inverted cup on top, which I remove daily for a few minutes (Taco bell slushy cups with the 1/2 top (you know, the domed lids that have a very large opening, which I fit an inverted cup on top of it, so there isn't such a balancing act). There are holes in the bottom and they are sitting in another plastic cup to absorb drips. 

Got some mold in one container, so I have taken the top off, hoping it will be enough. I also washed off the mold, gently, and reinserted the cutting that was affected.There are 3 in that pot.

The newer cuttings are more precious to me and I want to prevent mold, if possible.  I so far have some in a pot with Mel's Mix as a rooting medium and a plastic bag to form a "humidity dome" I have a few still in a damp paper towel in a baggie.

I don't have any Clonex, but I know where to buy some if it makes a huge difference in success.

I treated some cuttings with cinnamon, and they didn't do anything, but I think they may not have been viable wood, so I threw that batch out.

Cinnamon, bleach, peroxide...what works best and in what proportions? I am wondering if I should sterilize my "mel's mix" and/or some plain vermiculite and innoculate it with mycorrhizae and try to get my cuttings as sterile as possible before I put them in the medium. I and the kind of person who is not afraid of microbes and I just want the good ones to overwhelm the bad ones. 

 Verm is basically sterile, so is perlite and perlite is preferred over verm. Compost is not very good for rooting cuttings, except in the pile outside ; ) Because there is a large population of microorganisms in compost the oxygen gets used up quickly and with a dense/fine mix fresh air does not penetrate. So the lack of oxygen will kill the root tips and sometimes callous  as well. That is my theory anyway, it could also be something more along the lines of damping off? Wait until they have hardened some roots to use compost, pasteurization is better than sterilization, but neither should be needed.

For fungi that is on the surface washing/removing the dead material it is growing on and giving more fresh air will work fine. For fungi that is inside the cutting the only remedy I know of is to cut off the infected part. Infected cambium and wood will be discolored while healthy cambium is green and wood is off-white. 

wipe it off with wet paper towel. if it will go away, after doing that few times, it will get rid of it. 

if it's set in place, all the above method won't get rid of it. sun and fresh air is the only cure I know of that works 100%.

I have three cuttings given to me that I put in potting soil about 10 days ago.  They did not look right and I pulled them up and the bottom 2'' were covered with white mold.  I cut that off and repotted with seed starter mix.  And I cut a 2 liter pop bottle and placed it over them for humidity.  I may lose them but I if I do I'll chalk it up to a learning experience.