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scale

This is a discussion on scale within the Orchid Ailments / The Compost Pile forums, part of the Orchid Culture category; Originally Posted by JoeW "Scale insects are generally controlled by natural enemies, including tiny parasitic ...

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  1. #11
    Ron-NY is offline rothaholic
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    Quote Originally Posted by JoeW View Post
    "Scale insects are generally controlled by natural enemies, including tiny parasitic wasps and predators such as ladybugs. It is very common for ladybugs to move onto a plant with a growing scale infestation;.....Most other insecticides, including insecticidal soaps, can be used only against the mobile crawler stage of scales since adult scales are protected from insecticides by a waxy covering. These treatments are very effective, but must be carefully timed as crawlers are only active for a limited period."
    Source: Scale Insects
    This is the reason that I recommend removing adults prior to oil treatments. To remove adult scale from Catts, 70% isopropyl (rubbing) alcohol and a soft toothbrush is very effective.

  2. #12
    eanthony is offline Junior Member
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    The best results I have had is with a product called "distance". It will be very difficult for just anyone to find, you almost have to know a professional grower to get this product. Although it is very safe to use. It is a growth regulator, similar to enstar. Orthene is effective but is more effective if you pot water with it, once a week, for three weeks. With products such as malathion, diazinon, which are commonly oil based, you need to be careful not to apply when it is very hot, this can burn your plants. Also when you do kill the scale, there will be scaring from where the scale was, pay close attention, this could turn into a secondary disease such as "black rot", it will appear as a black area on your plant which will, for one appear to be soft to the touch and also will notice it spreading, there is no cure for this except to cut it out. Don't ask me how I know all this, I have learned the "hard way"....lol.

  3. #13
    espranch is offline Senior Member
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    Don't know if it's helping, but I don't have ANY pests ( insects ) in my greenhouse now. And, I suspect its because my husband put two frogs into the greenhouse. I do see the smaller one hopping around, on different orchids. The bigger one I've seen licking the leaves. Is it possible that they are eating small pests? Seriously...I'm wondering about this! What do the rest of you think? Betty

  4. #14
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    Quote Originally Posted by espranch View Post
    Don't know if it's helping, but I don't have ANY pests ( insects ) in my greenhouse now. And, I suspect its because my husband put two frogs into the greenhouse. I do see the smaller one hopping around, on different orchids. The bigger one I've seen licking the leaves. Is it possible that they are eating small pests? Seriously...I'm wondering about this! What do the rest of you think? Betty
    hi betty,
    im no expert in this, but i dont think frogs will eat scales or alike, smaller insects and roaches though.
    they also fertilize naturally while leaving their droppings in pots.
    as long as they hop around on bigger orchids with heavier spikes no worries.

  5. #15
    espranch is offline Senior Member
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    Thanks, Ron. So I don't have to "deport" them...By the way, where exactly is:Tacloban City, Leyte? I've traveled a lot, but never heard of that place. Betty :-)

  6. #16
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    I bought ladybugs last spring for mealies and scale. (The mealy bugs were on my violets.) Be sure to watch out for ants as well. I had a bad outbreak of brown scale due to ants in the greenhouse. Ants love scale and spread it like mad. My sister-in-law and fellow orchid nut was unfortunate enough to have lost 1/3 of her orchid collection to boisduval scale. That stuff is the worst.

  7. #17
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    Quote Originally Posted by espranch View Post
    Thanks, Ron. So I don't have to "deport" them...By the way, where exactly is:Tacloban City, Leyte? I've traveled a lot, but never heard of that place. Betty :-)
    hi betty,
    its on the south/eastern side in the philippines. i know i should have been more acurate, but i was also curious how many people would actually ask, congrats you are the first!

  8. #18
    espranch is offline Senior Member
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    Thanks Ron. Are you on an island, close to Taiwan? We've been to Taiwan, & loved it. By the way, my snake is a speckled king snake...I looked it up. Betty :-)

  9. #19
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    Quote Originally Posted by espranch View Post
    Thanks Ron. Are you on an island, close to Taiwan? We've been to Taiwan, & loved it. By the way, my snake is a speckled king snake...I looked it up. Betty :-)
    hi betty,
    no, we are quite far from taiwan, our island is facing the pacific where magellan landed and mc.arthur "returned".

  10. #20
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    *sigh*
    No Malathion on the island here, in fact, no Malathion in Washington State apparently.
    The only alternative brand is Safer. I'm all for organic and if this stuff actually works on my scale, spider-mites, and mealy bug infestation ( its awful ,)
    I'll be impressed

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