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Prevention of orchid pest and disease

This is a discussion on Prevention of orchid pest and disease within the Orchid Ailments / The Compost Pile forums, part of the Orchid Culture category; Hi everyone..... I know you guys are a big help.... I'm a member for a ...

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  1. #1
    Paph's Avatar
    Paph is offline Senior Member
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    Default Prevention of orchid pest and disease

    Hi everyone..... I know you guys are a big help....
    I'm a member for a year and I have to tell you I've learned a lot from you.
    I'd like to know how you protect your orchid of variety pests and diseas. What do you use? Is there an action just after "outbreak" - or there is monthly or so preventive actions? I do like to hear from you how do you treat your orchids.
    Thanks in advance!

  2. #2
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    hi branka
    well didn't got an orchid that had a desiese yet
    but i had some experices with pests like snails and worms/
    it happend when i brought new purchesed orchid, for a thumb rule every new orchid i buy or get, i take it out of the pot an examen his roots and condition, this is how i found the worms and snails, so i remove them and repot the plant again.
    if you suspect one or more orchid have a desiese it's good idea to isolate them from the rest of the orchids so what ever they got will nor spread/

  3. #3
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    We spray regularly, but still have issues. I think it would be much worse if we never sprayed at all though.

    Cheers,
    BD

  4. #4
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    I like to repot new purchases when I get them to be sure there are no surprises in the potting mix. Then I keep them separated for a few weeks to be sure nothing develops. Since I grow in my house,pests aren't a problem.

  5. #5
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    In spite of periodic spraying I still have problems with pests, though a well- ventilated grow-area with plenty of air circulation helps.

    As I grow my orchids 24/7 outdoors, the main problem is with insects especially the dreaded yellow beetle. It seems to love to eat your most-prized blooms as soon as they appear; immediately lays numerous tiny eggs that soon hatch into voracious eating machines that devour buds and flowers alike.Spraying with insecticides (Malathion) doesn't help ast they don't appear when you are spraying. Residue poison on the plants don't deter them. The only solution is to catch them red-handed and to pick off the larvae when they appear.

    I also spray fungicide ever fortnight during the rainy season.

  6. #6
    plucker is offline Member
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    I mist with a really weak combination of potassium permangate (condi's crystals) to just change the water colour to light pink or equivalent of 1/2 a match head and a drop of dishwashing detergent per 4 litres of water.
    I try to do this daily, and emphasise that you only mist. At least weakly will make a difference. Water and fertilize as normal.

    The results I have got out of this is increased flowering because of the potassium, reduced fungal attacks which now dont exist, and reduced insect/pest concerns. I use this on all orchids from just deflasked seedlings to adults. I have thrown out my fungacides.

    The plants are generally healthier looking and greener too.

    A drop of dishwashing detergent with the folular fertilizer also helps keep scale and others out.

    For those other critters that are hard to move, rubbing alcohol works a treat.
    I put some in a spray bottle and squirt every thing that moves. Insects die really quickly and it wont affect the orchids. I have killed cockroaches quicker than insectices by spraying rubbing alcohol.

    I even spray the root systems of orchids with rubbing alcohol at repotting time to kill anything I overlook.

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