Ask a Question forum: Strange crust on cactus plant?

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Name: Aimee
Long Island (Zone 7a)
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AimeeLane
May 21, 2018 7:13 AM CST
Hello!
This morning I noticed a strange crust spreading over my cactus plant. Is this scale or something else?
If it is scale, how can I save the plant?
Thank you,
Aimee
Thumb of 2018-05-21/AimeeLane/a4232b

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Name: Daisy I
Reno, Nv (Zone 6b)
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DaisyI
May 21, 2018 11:10 AM CST
Its not insects or disease. Something is not quite right with the root system so the bottom of your plant is drying.
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Name: Andrea Reagan
Astatula, Florida (Zone 9a)
I collect seeds
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Kevalsha
May 21, 2018 11:13 AM CST
I would suggest to take one of the healthy pads from the top and start your Opuntia mycrodasys
over again. That may be a sign of root rot.
Kevalsha
Name: tarev
San Joaquin County, CA (Zone 9b)
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tarev
May 21, 2018 11:37 AM CST
I am thinking the media has somehow stayed too wet, since it does not look gritty enough and then being by the window it got cold, so the roots may have suffered from some rotting.

Observe a bit more, it may just try to dry up some more, and just resume growing from there. Give it as much warmth and bright light as you can.

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