Phalaenopsis with white spots on roots

[Shyulace]

Originally Posted by Ray

Another alternative is to cut away the bad parts, then dip the clean end in cinnamon. It will "seal" the wound, and is a good bactericide and fungicide to boot.

Quick question, what do you consider "bad". I had a similar problem where I had to cut unhealthy and rotten roots. I know how to differentiate between a clearly rotten root and a healthy root, however I'm not totally sure what to do in the iffy area in between?

For example, I just went to repot a orchid yesterday and as I was clearing away rotted roots, there were some healthy looking roots with darkened spots. I'm not sure thats a sign that it WILL rot soon or if thats just normal and it will just stay that way after treated with h2o2. The root was a inner white root, it was still firm and for the most part healthy, but it did have some black/dark areas on some parts of the root. Do I just chop it to the healthiest part of the plant?

Also, what if I have a healthy green root, and about 3 inches down the root there is a black spot that is truncated. Sort of a band shrinking around the root, and the root after that still looks healthy. What would you do in that case?

Thanks again, and I don't mean to hijack this thread, but I figured this might pertain to OP, and I wouldn't want to continue lopping off a useful root

Thanks~

[Orchid126]

Have you researched mealy bugs and scale?