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  • 1 Post By ksriramkumar
  • 3 Post By raybark
  • 2 Post By kspalding

SLC. Jewel box white scale infestation

This is a discussion on SLC. Jewel box white scale infestation within the New Growers: Ask the Senior Members forums, part of the New Growers category; I recently got a new orchid, it's labelled as an Slc. Jewel box, and I ...

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  1. #1
    LiveLaughGrowOrchids's Avatar
    LiveLaughGrowOrchids is offline Junior Member
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    Default SLC. Jewel box white scale infestation

    I recently got a new orchid, it's labelled as an Slc. Jewel box, and I noticed an infestation of scale insects. The books I've read suggest a systemic pesticide. I've never had any bugs on any of my orchids, as I've grown them inside all along, but this one comes from a local hobby grower and was grown outside. I'm not sure what kind of pesticide would be safe to use?

  2. #2
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    Hi. A picture would greatly help a lot. Many members would gladly help you out.

  3. #3
    ksriramkumar is offline Senior Member
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    scales are particularly tough to eradicate in one shot. would suggest

    1) isolate the plant
    2) if possible repot the plant after treating below
    3) you could possibly try spraying the entire plant with a 50:50 iso propyl alcohol and warm water with a few drops of liquid soap as a spreading agent and repeat every week or so.

    let us know how it goes,.

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    When you say "white scale", I assume you are referring to Boisduval scale, which is particularly difficult to eradicate.

    I prefer acephate for use on them, It is both a topical and systemic insecticide. The Orthene brand is what I have, which is a 97% wettable powder (I've seen it on Amazon). I use it at 1 teaspoon/gallon, wettinging all plant surfaces and soaking the potting medium, once a week for three applications.
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  5. #5
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    Even with a pesticide treatment I would recommend washing the plant completely with warm soapy water and wash off as many as you can before treating. This just increases your chances of getting rid of these pests. Problem with scales and just the use of pesticide is that they are capable of hiding eggs under the shells that may become uneffected and soon hatch a whole new problem. Washing these off reduces your risks.

  6. #6
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    Kim's approach followed by Ray's is a good way to go. Scale, from my experience, is THE most difficult insect to get rid of and washing the plant with warm, soapy water combined with a toothbrush for all the crevices followed by 3 treatments of acephate spaced about a week apart is a good method. Make sure the plant is isolated from other plants. Be aware that the scale usually exist in the roots also. After having said this, there is one other solution... get rid of the plant. I have seen entire collections taken over by scale and although I hate to see an orchid destroyed, Jewel Box is pretty common and replacing it may very well be less hazardous than risking the infection of your entire collection.

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