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Rusty edges

This is a discussion on Rusty edges within the Orchid Ailments / The Compost Pile forums, part of the Orchid Culture category; I am starting to think my orchids did better when I simply ignored them! This ...

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  1. #1
    sadie's Avatar
    sadie is offline Senior Member
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    Default Rusty edges

    I am starting to think my orchids did better when I simply ignored them! This summer I have had more problems than ever before, but I've actually paid more attention to the orchids than ever before! Argh!

    So, here is the latest. There is a rusty powder on a couple of my phal seedlings--primarily this one which is a relatively newer addition (earlier this summer) but it is also on some of its neighboring seedlings. The leaf edges go dark as well. This plant has the most of the rusty powder--which will rub off if you run a wet tissue or q-tip over it. Is this mites?

    On the underside -- the red spots are not mushy but the whole underside is pitted. Is this mites? I've never seen anything like it before.
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  2. #2
    Brutal_Dreamer's Avatar
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    Looks like spider mites! Good news is that you can add this to your article, bad news is that you have spider mites, and a pretty severe case on that phal. Sorry.

    Cheers,
    BD

  3. #3
    smartie2000's Avatar
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    I had a phal mite attack too! but mine was not red but yellowed leaves, so I thought it was normally dropping leaves untill too many of them were falling.

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    ..... I hate mites ! Gin

  5. #5
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    That is what I suspected. I'm pretty sure the mites had a small hold on that little seedling when it arrived So I know the culprit, but I guess I should still try to save him.

    Today I unpotted the couple of badly infested plants and sprayed them down with pesticide. Then, just to be on the safe side, I also sprayed down all the neighboring plants too. It took nearly two hours! I'll have to do it again on Sunday, to catch any hatchlings I missed.

    Argh -- I hate using what little bit of "free" time I manage to get each week just to kill mites. I don't know what the deal is--seriously the bugs are thick this year. I guess it could be that my benches are more crowded than ever before in anticipation of the move.

  6. #6
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    You are right the bugs are bad this year , I have been getting rid of crickets right and left , also ants . Gin

  7. #7
    GiovannaD is offline Senior Member
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    Yesterday, your topic troubled me Sadie, and when I checked the new seedling's (Phal. Lovelly Kid, parishii x lobbii) drooping and slightly yellowing leaves, I noticed some red dust on the undersides ...I panicked! I never had bugs on my plants!
    The culprit faced a spraying frenzy and got quarantined in another room.
    I hope these mites aren't resilient.

  8. #8
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    Oh Sadie I feel your pain!
    I got back yesterday from a conference and noticed a phal that I really like had droopy, dimpled leaves I ran a paper towel under the leaves and a red rust colored powder came off on it!!!
    UUUGGGGHHHH MITES!
    I took the plant outside, dumped out all the mix, cleaned the leaves and roots, sprayed it with insecticide, let it dry, sprayed it again, let it dry...repotted...and finally sprayed again. Then I left it far away from the others.
    This is my first time with these particular creatures!

    I'll keep my fingers crossed for your plant and mine as it has officially checked into the quarantine unit at the local orchid hospital (my guest bedroom)

  9. #9
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    I also have mite infestion in my collections recently. But when I robbed the leaves, I did not see any thing. Ran a magnifier, I saw nothing. But I saw tiny pin holes on the leaves, also most every one, except the ones in the terrarium. The damage was not bad, I sprayed them with neem oil. But my paph delenatii got sick, suddenly turned all the leaves to yellow. I think the neem oil was cause.

  10. #10
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    Boy those mites really get around. I treated every plant I had this summer, whether I saw evidence of mites or not. Two were pretty badly infested before I knew what it was. The pitting of leaves was the first evidence but I did not know it at the time.

    Katie

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  1. what is this rusty coloured stuff ?
    By playtime8978 in forum Orchid Ailments / The Compost Pile
    Replies: 21
    Last Post: March 25th, 2010, 12:44 PM

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