I am fighting some mold on some cuttings and waiting for some Physan 20 that I ordered online. The question is though. Will mold kill cuttings? I mean it thrives on decaying matter, not new growth correct? Has anyone had cuttings with leaflets or green buds die because it? Or should I really be very concerned to get at it right away? Thanks for your input. 

If the mold on the cutting is on the top portion and the green healthy part is below it then trimming off the molded part and providing suitable environment then the cutting has good chance of survival. However, if the mold is in the mid portion below the green part with leaves then chances are minimum if mold is not controlled. That has been my experience.

If you see mold. You gave too much moisture. How are you rooting these cuttins

In my limited experience mold is pretty much your cuttings worst enemy.. Fighting some off now. Definitely hit that mold up as quickly as possible, either trim it off or try a mild solution of bleach/water. Mix one part bleach to 10 parts water and dab it on the mold area to clean.. But listen to the folks above they know their stuff! It's very easy to overwater your cuttings.. Boy have I learned that the hard way! Good luck to you!

@figpig. I've got my cuttings in 32 oz. cups with a perlite moss mix with gravel in bottoms of cups. They are placed in fish tanks which also have rocks in the bottom and heat pads under the tanks. They have reflective poultry lamps giving them light. I keep a small amount of water in the bottom of the fish tanks and have plastic sheeting over the top. It is very humid and a fair amount of condensation collects on the sides of the glass. The air temp varies between 70-80 degrees. BTW Thanks Jamie I'm going to get cleaning them tonight.

Mold sucks, especially on porous woody stuff like fig wood because if you see it on the surface, good chance it's already into the wood. I agree with Richie and would add, moisture plus insufficient aeration in the media.  You can get away with a little excess moisture if your media is well aerated.  Add the two together and it spells M-O-L-D. I have found they do best with media almost as dry as one would grow cactus, at least in the beginning and then increase watering as you see good roots and green growth.

My opinion is that mold is a symptom not a cause.  It occurs when there is excess moisture or when your cutting has already failed (or both, often).  I think that mold inhibitors are useless because if the cutting is in decline or there is too much moisture and too little airflow, your cutting will spoil one way or another from some pathogen.  Fungus and bacteria spores are all around, there is no practical way to remove them from a cutting.

Others might disagree on some parts of what I say, but I bet everyone will say that proper moisture levels and fresh air are the best way to keep a cutting healthy.

Use very slightly damp media otherwise, you won't just have mold, you will have gnats.  Gnats will eat any roots that grow and kill the cutting before you know it.  Overwatering is your worst enemy.