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mite problems... still. please help!

16 years ago

i now have three pots of my pepper plants (14/55 current survivors) in quarantine with mites. i used my jeweler's loupe because i thought that it was odd that these 2-spotted spider mites were nowhere near the actual plants, just on the soil. and i noticed that they don't really have the spots, it's more like, well, dirt or something on only a few of them.

the quarantined pots all share the same look to them. the dirt in the soil is mostly gone, the plants are obviously suffering with curling leaves, mottled spots and yellowing, with bronzing and what-not, and the mites leave only what looks like a wooden mulch behind. when i tried to catch a bunch for further inspection with my loupe, they dig into the wooden bits, which is where i assume they hide and lay eggs and such. no webbing whatsoever, no eggs, and not a single bug or egg or anything on the plants themselves. the roots though, when i sterilize to re-pot, are obviously damaged. these little buggers are a translucent white, and about 0.5mm long at best.

so far i've done tobacco juice, tobacco leaves sprinkled on the soil, 1:1 alcohol/h2o spritzes, NEEM, 1/4 cup bleach per gallon of water sterilizations for the plants, while using the same concentrations for the pots only doing those in hot water (and then of course doing a full rinse in plain water as well), sterilizing my soil in the microwave in batches ever since i got the batch that was infested with these critters to begin with (NEVER BUY MIRACLE GRO ORGANIC POTTING SOIL!) and nothing, i mean NOTHING, seems to make these buggers FULLY disappear.

every time i think they're gone for good, finally, they come back and start spreading again like plague. we bought some diatomaceous earth for an ant problem we have, but i'm not sure if that would help.

please guys, oh please oh please, please help us, and our chili babies!

Comments (10)

  • 16 years ago

    I think nothing will get rid of mites. You might try not growing for enough of years and then hope they are all dead and start over with sterile soil. mites are really impossible to get rid of.

  • 16 years ago

    They are very tough to eliminate. Like you, I tried several things but nothing really worked. When I stopped over wintering plants and started fresh in spring I was able to avoid them. A local nursery had a problem with them and bought something that cost several hundred dollars a gallon.

    john

  • 16 years ago

    this is not making me feel any better.

    i just added a light dusting of DE to the quarantined pots, just in case.

    here's hoping.

    i refuse to lose our entire pepper crop that we have worked so hard on together because of a stupid bag of soil. i'll waterboard the damn plants if i have to, or sterilize them in the bleach solution again and make my own soil out of non-soil until this whole mite issue has blown over.

    otherwise i'm fogging the room.

    especially since now it looks like we have the smallest buds forming on the tallest plants, where flowers are about to bloom.

    i shall overcome!

  • 16 years ago

    Yes, make your own soil!

    One part organic (bark), and two parts inorganic (grit - pumice, perlite, Turface, gravel).

    To sterilize the bark component (I use screened "Orchid Bark"), you can pour boiling
    water into a bag of bark and seal it up. Or you can put the bark in a black bag, add
    a bit of moisture, seal it, and leave it in the sun for a few weeks.

    Josh

  • 16 years ago

    A recipe for a home remedy to get rid of aphids
    1 cup vegetable or white mineral oil
    2 cups water
    2 teaspoons dish soap (without bleach) or Murphy�s soap
    Spray this homemade aphid control mixture on the aphids every few days until the aphids recede. This home remedy to get rid of aphids will suffocate the aphids. Make sure that plants that are treated with this solution are kept out of direct sunlight as the oil may magnify the sunlight and burn the plants.
    ( I got this off the internet I used a little less oil,,,But it worked great I only had to do it once and I had a bad infestation. If you can wash all aphids & mites off first with water, be sure and do under leaves cause this is where most are going to be..I did afterwards use a lite dusting.The sun didn't seem to hurt using a little less oil.I actually used just a couple tablespoons in mine).

  • 16 years ago

    I spotted this when I was narrowing down suspects on a Holly in my front yard.

    http://www.getridofthings.com/get-rid-of-spider-mites.htm

  • 16 years ago

    thanks addaboy, but i don't have aphids, i have soil mites.

    and redtail, i read that site. i've done everything this guy said so far, among other things. like, quarantines, the neem, the alcohol...

    except miticides, because we do want to HARVEST these peppers one day, you know? and i'm not sure if you can use a miticide that would actually work and kill the buggers FOR GOOD without making your pepper crop inedible.

    the only thing i am really pretty strictly opposed to is adding predator mites. i mean, yes, in theory it sounds wonderful. i even read scientific articles about them, and their life cycles, etc. but i have OCD. i garden strictly indoors in sterilized pots with sterile soil wearing latex gloves. ADDING bugs? i think that's outside my realm of psychologically okay.

    do you know of a miticide that's super strong but won't harm potential peppers?

  • 16 years ago

    Ivermectin will kill any sort of mites, but I don't know if anybody has a version to put onto plants. Maybe contact the company and ask?

    It's made to kill worms and mites on cattle, livestock, and dogs.

    I have no idea what the withdrawal period would be if you sprayed it on plants, but it is made to feed to animals, and they give it orally to people, too.

    Maybe if you sprayed it on your peppers and ate the peppers, it would clear out any worms you might have?

  • 16 years ago

    If you look at the link I sent you, you will see something for predatory mites. Basically, introducing a beneficial insect to biologically control another. I've really been trying to avoid the "spray and pray" method with insecticides. Just a suggestion...

  • 16 years ago

    oregonwoodsmoke, you crack me up.

    i'm going to look into that.

    has anyone every used this or anything similar?

    http://www.amazon.com/Doktor-Doom-KnockOut-spray-16/dp/B002JU1QEI/ref=cm_cr_pr_product_top

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