Cecil , good point about cutting them in half!
Nelson, yes, I did have to reapply the peroxide mixture once the mold starts, like every 2-3 days, but it kept it down long enough to get them rooted. I forgot to mention that on my first attempt, I used an old heating pad wrapped in a towel, in a bathtub, on low. I had the cuttings in baggies, in a clear ,covered bin, on top of the towel. I left it this way for weeks, like I said, NEWBY DUMBA--! No wonder I had so much mold! Since then I sit the bin in the bathtub with no heat whatsoever.(This is inside the house!) Works just great. Re: the cups with the domes, opening them a little every day or so to regulate the humidity, helps to retard the mold too. I've read where some here poke holes in the dome to keep it from getting too moist. I also know from experience that if a lot of condensation forms on the small leaves, they will rot too.