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krstofer_gw

Predatory Spider Mites..

20 years ago

I have been fighting both the red & the two-spot spider mites for over two years. I have tried almost everything with one exception. Perdatory mites. I've been afraid of them because I'm unsure what kind to get and I don't know if they will live past one or two generations.

Anyone out there in internet land have any expierience with these little guys?

Thanks Much-

Comments (6)

  • 20 years ago

    Is there such a thing?

    I'm ready to break down and get one of those systemic pesticides (Bayer makes one, I believe).

    My Incense looks so sad and pathetic. It has, maybe 10 leaves and they only last a week or so before they start losing their color and curling up.

    My Vitifolia and Edulis dont' seem affected, my Lavender Lady is affected, but not as badly.

    ~Chills

  • 20 years ago

    The best treatment for SM for me has been water plus a little insecticidal soap if they get really bad. SM don't like humidity, so I mist once or twice with water every day when they become a problem. Once its warm out, I just move them outdoors, and the SM vanish in a couple of weeks.

    ~kiwinut

  • 20 years ago

    I tried Bayer systemic.. It works well on some passiflora, not so well on others, and outright Kills others. Antioquiensis for example. Deseased in a week. So, use it sparingly, if at all. Or on ones you have several of..

    I've tried the safer in the can & safer in the mix-your-own.. It works fairly well, but I just don't have the time to mist everything 1 or 2 times a day for a couple weeks.

    'Outside' is where the little darlings destroy my sauronatum venosums (bayer systemic works Great here) and have a go at my quadrangularis. They nearly killed it before I got them under control.

    They're a Big Problem for me out here in the west, even with raising the humidity when I can, as it still gets down to single digits for most of the summer with 180+ days between rain.

    I need a bigger gun. Preferably one that acquires it's own targets, clears itself hot, and fires all on it's own. Perhaps predatory mites are what I'm lookin' for. I don't know.

  • 20 years ago

    I have been using NEEM (horticultural oil available at Lowe's)for spider mites with good results for passiflora, brugs, plumeria, and other plants for the last year. I do have to reapply every few weeks to get it under control in the beginning when they get bad. But it works when used regularly. For some reason spring and early summer are the worst here, even though it is humid, and once I get past that point I don't need to treat as often. It would be nice to go with predatory mites and other beneficial insects.
    We have a lot of lizards and egrets etc. here that eat up the big insects too bad they don't eat mites lol.
    ~SJN

  • 20 years ago

    Misting each of my passionflowers a couple times a day just isn't something I have the time or inclination to do. hmmm...sorry to hear that the Bayer might kill my plants, I will certainly have to reconsider that option.

    I've heard good things about Neem, but I haven't noticed it locally. I'll check Lowes next time I'm there.

    My problem disappears quickly once the plants are back outside as well. I got pretty desperate and caught a few spiders and introduced them to the room with the mites. I noticed webs (bigger than mites webs) but the spiders didn't seem to escape the notice of my cats.

    My Vitifolia was badly hit a couple years back by the mites, this year it hasn't been hit as badly. I did treat it with insecticidal soap before I brought it in and I dusted it with diatomacious earth (which made a mess, and there is still some on older leaves). Whether this helped or not, I don't know. I will be giving the Incense this treatment next year as well, though.

    I got seeds out of a fruit of Incense (pollenated by Incarnata, by hand). Of a dozen seeds, seven seemed fully formed and did not float. I'm hoping to plant them next week. (off topic I know...but who cares)

    ~Chills

  • 20 years ago

    Hello
    i know this is impossible for large plants.
    but for small plants i give them a good highISH pressure shower in the bath with cold water.
    as long as you dont stay in one place on the leaves too long you will be fine.
    it knocks off all the mites their debris and thier eggs
    twice a week every other week for two months will get rid of them on your plants :)

    and dont forget to quarantine infected plants immedietly!

    (please follow the above advice with caution it works with hardier species but may shock and kill delicate ones.
    if in doubt use tepid water insted. although cold shocks the spidermites and makes them let go!!!)

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