problem with fairy castle cactus(Cereus,tetragonus f. monstrose cristate)

Discussion in 'Cacti and Succulents' started by Kuroc, Dec 18, 2007.

  1. Kuroc

    Kuroc Active Member

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    Texarkana,AR(zone 8A)
    Well I'm having a problem with my fairy castle cactus. The problem is some of the tips turned yellow then developed brown spots. It may be because I left it outside most of the first week in december.

    But I'm also worried it might be scale. It doesn't quite look like scale though,The brown spots aren't raised and there flat against the skin of the cactus.

    Here are some pics what do you think?

    Also I just found out something about the spots, The smaller spots are underneath the waxy skin I can't pick them off. But I can pick off the larger ones. I just looked at both sides of one with a magnifying glass and it's a solid brown on both sides. Doesn't look like a scale insect.
    But I don't know for sure.

    Attached Files:

    Last edited: Dec 18, 2007
  2. edleigh7

    edleigh7 Well-Known Member

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    Brisbane Queensland Australia
    It doesn't seem to be scale. Are there any ants farming the scale?
    If there are no ants, it shouldn't be scale


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