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  • 1 Post By Azizan
  • 1 Post By oile

Phalaenopsis equestris attacked by orange spider mites

This is a discussion on Phalaenopsis equestris attacked by orange spider mites within the Orchid Ailments / The Compost Pile forums, part of the Orchid Culture category; Most of my Phals collection were attacked by orange colour spider mites (a.k.a false spider ...

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  1. #1
    Azizan is offline Senior Member
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    Default Phalaenopsis equestris attacked by orange spider mites

    Most of my Phals collection were attacked by orange colour spider mites (a.k.a false spider mites) lately. I lost 2 of my Phal hybrid from the infestation. At first I thought it was a fungal infection which leads to the delayed treatment as I don't have fungicide. When I search online it is called false spider mite which is very minute in size. By that time it was too late, so I lost the 2 Phal hybrids. But luckily my Phal equestris is more hardy and able to survive from the attack.

    The drastic action that I took was; (1) wipe the leaves with antibacterial soap solution, (2) then apply corn oil under the leaves and leave it for ~10 minutes, (3) by holding the plant upside down, I blast it under tap water. It was free from the false spider mites more than 2 weeks now, though so many scars were left. It is making its comeback now as new leaf is emerging.

    My question; (1) should I feel relief by now after 2 weeks without any trace of the mites? (2) Should I repot? Because I worried that the false spider mites might have lay their eggs and started to attack again. Until now, I'm still bothered of where these mites came from. It just appeared suddenly out of nowhere. Any advice and useful tips is very much appreciated.

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    Wish me luck on saving this Phal equestris!

  2. #2
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    78Terp is offline An Avant Gardner
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    Sorry to hear of your mite attack! I have only had one orchid get mites and I believe it had them when I bought the plant (at least hidden in the media). It did kill that orchid but did not spread any further. I did find the spider mite infection and moved it away from the rest of the collection.

    I think that repotting is a good idea. Then you will know that there is no eggs to hatch. But be sure to closely inspect the roots for eggs. You want to be sure to not allow them to move to the new media.

    Good luck! I find the phal equestris is tough, like you said!

  3. #3
    ksriramkumar is offline Senior Member
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    Sorry about that. Soap solution + rubbing alcohol is best bet and if the infection is severe then use a miticide. Eggs hatch ever 7-10 days and hence repeat the treatment every 3-4 days. Keep the humidity up and handheld lens is your best friend

  4. #4
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    oile is offline Senior Member
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    If it is common spider mite, Tetranychus urticae, must be certain, for it is necessary to observe the plant under a microscope, 4x are sufficient, or with a good magnifying glass, if it is confirmed you should treat the whole greenhouse, the spider mite Red is an arachnid and as such is very mobile and mature generations throughout the year and if you notice the presence of a plant is likely that now exists throughout the greenhouse, you will find it again the following year.
    For effective treatment you can choose between the biological, entering his antagonist in the greenhouse, he too a mite, the mite (Phytoseiulus persimilis), in a short time it will delete all Tetranychus urticae or chemical, tenedo mind that the active ingredients have to be two, an ovicidal and an adulticide, I ovicidal personally have used as the "Borneo" produced by Bayer, dose 0,8cc / liter (Active substance etoxazole) and the adulticide Vertimec EC, dose 1cc / liter (active Abamectine 1.84% (18 g / l), the two products can be mixed, very effective products, however, it is prudent to make at least three treatments over a month and then check under the microscope if you still notice attendance, difficult, but if there is any noticeable do even treatment.
    Maintaining a dell'70 ur - 80% is not acceptable to mites. Oile

  5. #5
    ksriramkumar is offline Senior Member
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    Thank you for valuable inputs Oile

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