I cleaned it with isopropyl alcohol just now, in case it’s a fungal infection. Last watering was on the ~18th of last month, before it overwinters with little to no water. It’s soil is a mix of extreme grit with a mixed shell of more normal soil around the outside. Terracotta pot. It gets exactly seven hours of bright, direct artificial light under a 200w grow light each day.

The only bugs around are a few fungus gnats that rode in on produce a few months ago. Any advice would be helpful! I’m trying not to carve into it unless absolutely necessary, as it’s only about as tall as a pencil.

  • discocactus@lemmy.world
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    4 hours ago

    Put beeswax on it. Or that butcher block conditioner with beeswax (usually just mineral oil which is what horticultural oil is, and beeswax). Also a few Bti “mosquito bits” with the next watering will knock back those gnats.

  • just_another_person@lemmy.world
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    5 hours ago

    I don’t think you’re supposed to use any kind of alcohol on woody trunks of plants, but maybe I’m wrong there.

    It just looks like a deadened growth that will turn into a knot. Unless you see it spreading, I don’t think there is any cause for concern, especially if it’s an indoor plant.

    Fungus or mold usually has color, and dead growth is brown or black like this.

    • SchmidtGenetics@lemmy.world
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      4 hours ago

      It’s used as an insecticide, and technically there’s alcohol in there already? Methanol!

      Can use it as a spray on tomatoes and cannabis atleast for stuff like spider mites.