Pests on the cactus?

I've had my cactus for about half a year and the crusty growth on the stem has been there for a while so I didn't think anything of it, but today I noticed spotty growth on the tips and it looks as if it's dying. It can't be from overwatering because I take close care with it. I repotted my cactus about a week ago, is that the cause? Although I've repotted several cacti I have using the soil and they look healthy. I don't know what's causing it and I'm worried about the crusty growth on the stem. Can I scrape it off? But I don't know if that's how it's supposed to be or if it would be harmful. I urgently need help!

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pharao1961
1 year ago

It started with me too, and at some point the “dust” was very soft…

It was probably too many giessen (?)

I leave the care of the flowers to my wife, who has a much greener thumb than I…

Nofear20
1 year ago

This is the natural woodwork. Don’t worry.

Sonnenschein944
1 year ago

Take a match and see if Laeuse can be rubbed off or if it is normal life phenomena – upper area. Q-tips then go well for more.

The lower brown spots are normal Lebebs appearance

Sonnenschein944
1 year ago
Reply to  Krul32

If they are not flattened, “then they are part of the plant,” not shamefully, continue to observe. Non-absorbed, open wounds may cause consequential problems, e.g.

Sonnenschein944
1 year ago

Can you ask me…

Uwe65527
1 year ago

These are normal aging processes. The trunk is wooded from below. If you don’t like it, you can cut off and root a leaf from the opuntie.

Uwe65527
1 year ago
Reply to  Krul32

That’s what happens. Sometimes leaves simply die completely or partially. You can cut off these leaves. Don’t worry. As a rule, opuntia grow quite well.

Uwe65527
1 year ago

It’s not that wild. Opuntia are very tough. If you don’t cut anything off, they won’t look good any more.