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Organ Pipe Cactus

Q.White Shrunken Areas On Organ Pipe Cutting

Zone Phoenix, Arizona | Prosplock added on September 20, 2021 | Answered

I am leaving sections of organ pipe cuttings dry to propagate. It’s been almost 2 weeks and I’ve read where I can take up to two months to properly dry. What’s happening now though is that there are a few sections on the ribs that are training weight and shrinking a little bit, like it’s drying out. Does that mean it’s ready to put in the planting medium? Or a sign of some infection? What should I do? Thanks advance!!

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Certified GKH Gardening Expert
Answered on September 20, 2021

This does appear to be an infection. Most times, this happens from using improperly sanitized pruners. From here, I would dust with a fungicide. Wettable sulfur is my go to for application like this. Unfortunately, I can't see the cut end, so I can't see whether it has calloused, or not. Once the happens, it will be time to plant.

Here is an article that will help you with fungicide use:


This collection of articles will help you with the care of the cactus:


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