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Spider Mite

This is a discussion on Spider Mite within the Orchid Ailments / The Compost Pile forums, part of the Orchid Culture category; ...

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  1. #11
    ksriramkumar is offline Senior Member
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    Excellent suggestions from Elio. Just be careful that use these products only as symptomatic treatments and do not use them very often ( > 3 times an year) as the mites might develop resistance

    Quote Originally Posted by oile View Post
    If mites are, the photo is too small and you can not see, the more common the Tetranychus urticae, are not easy to eradicate due to their incredible proliferation and their presence on plants is not always obvious, if not after careful research, useful a microscope or a powerful lens, their presence at the advanced stage is highlighted by white spots on the leaves and small cobwebs, when these symptoms are evident need to act quickly or take the plant to death, infesting whole greenhouse.
    In my botanical consultant experience I've had many experiences with these mites, effective results is to make treatments with two products mixed an ovicidal and an acaricide;
    - Ovicidal, the "Borneo", produced by Bayer, 9 ml dose x liter;
    - Acaricide, the "VERTIMEC® EC", produced by Syngenta, the active ingredient Abamectin 1.84%, dose 1 ml per liter, can be mixed;
    these are truly effective products against mites, but you have to apply three at 20-25 days after treatment, it is advisable to not only treat the affected plants, but whole greenhouse.

  2. #12
    oile's Avatar
    oile is offline Senior Member
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    Elio
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    Quote Originally Posted by ksriramkumar View Post
    Excellent suggestions from Elio. Just be careful that use these products only as symptomatic treatments and do not use them very often ( > 3 times an year) as the mites might develop resistance
    If they are used carefully and if you perform the three spaced treatments is very unlikely that the infection is present again, they are very effective products and so far I have not encountered resistance.

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