Can I use Clonex on a well calloused cutting?

Trichocereus pach x scop

-Very fat cuttings, ranging from 9cm to 16cm thick.

-Thickest cuts are almost woody, from an old outdoor trich.

-All fan dried and 2 weeks old, well calloused. Some have a few dirty darker spots that are dry and not spreading. Most are clean white callouses and hard, sucked in.


My question is, can i dip/paint clonex on these cuttings? Im about to pot them in a dry mix and keep them in shade. Its perth winter so its actually quite warm during the day and between 5-12 degrees celcius at night. Also do i need to cut slits in the callous so the clonex can absorb, do i need to break the skin?

thanks.

You don't need to use any rooting powders or gels.
Don't cut off the callous area either, even if you don't plant it it will still form roots. I left some cereus cuttings on the water heater for 6 months and they started growing roots and sending out pups.
Just plant into a dry mix and wait.
Root formation time varies.

You won't need anything to encourage roots other than light and warmth. By the end of November you should see some activity.  Roots will emerge from wherever it suits the plant including the sides if under ground.  Breaking the skin only risks infection.  The callous will soften by itself once in the ground.  I leave cuttings standing in an empty pot under cover until its spring time.