Welcome to OrchidsForum.com. We are a friendly online community for Orchid Growers all over the world. If you haven't joined yet we invite you to register and join our community. Hope to see you on our forums!

Neem oil question

Discussion in 'Orchid Culture' started by KellyW, Apr 20, 2017.

  1. KellyW

    KellyW Orchid wonk Staff Member Supporting Member

    Messages:
    6,530
    Likes Received:
    2,314
    Location:
    Redding, California, USA
    I have never used neem oil but recently visited a nursery where they used it for mealy bugs, white flies and aphids, etc. I typically use (rotate) imidacloprid products, Sevin (carbaryl), Avid, AzaMax, insecticidal soap, and spot treat with isopropyl alcohol.

    I suspect the nursery was using neem because it is safe for the public to be around immediately but I was wondering if there is any other reason to add it to my arsenal? I understand it has a bad odor but I didn't notice any when I was around the diluted product in use.
     
  2. Chuck-NH

    Chuck-NH Well-Known Member

    Messages:
    1,983
    Likes Received:
    1,925
    Location:
    New Hampshire, USA
    Hi Kelly,

    AzaMax is actually derived from Neem, although I think the main action from raw Neem Oil is suffocation like other horticultural oils. I was using for a while...worked ok for me for limited spraying. Tell me...what works best for you on flower thrips?
     
  3. KellyW

    KellyW Orchid wonk Staff Member Supporting Member

    Messages:
    6,530
    Likes Received:
    2,314
    Location:
    Redding, California, USA
    Thanks for the info, Chuck.

    As for flower thrips ... either I have never had a problem with them OR I thought the problem was caused by something else. After I read your post I looked up what thrips damage looks like and I could have been blaming some thrips damage (stippling) on mites. Don't know. Do you have a good photo of thrips damage on your plants?
     
  4. jai

    jai Orchid addict

    Messages:
    915
    Likes Received:
    119
    Location:
    youngstown ohio
    I found a safe and powerful arsenal is the gold brand Listerine. Works great on everything from snails, slugs, thrips and more. I only encountered a few snails and scale so far. But I know a few growers who say its a miracle worker.
     
  5. Fumiaki Takahashi

    Fumiaki Takahashi miniature orchidaholic

    Messages:
    295
    Likes Received:
    88
    Location:
    Georgia
    Hmmmm...
     
  6. Kipper

    Kipper CoffeeCoffeeCoffee... Supporting Member

    Messages:
    1,097
    Likes Received:
    409
    Location:
    Ft. Worth, Texas
    Imidacloprid is the only ingredient that I have used that controlled thrips. They're very annoying!
     
    Chuck-NH likes this.
  7. Marni

    Marni Well-Known Member Staff Member Supporting Member

    Messages:
    13,459
    Likes Received:
    3,254
    Location:
    Santa Rosa, CA
    There are some pictures here: Orchid Pests, Orchid Diseases. Download the Orchid Pest, Orchid Diseases pdf.
     
  8. Chuck-NH

    Chuck-NH Well-Known Member

    Messages:
    1,983
    Likes Received:
    1,925
    Location:
    New Hampshire, USA
    I do have a couple Cattleya blooms that I can photograph that have symptoms
     
    jai likes this.
  9. Chuck-NH

    Chuck-NH Well-Known Member

    Messages:
    1,983
    Likes Received:
    1,925
    Location:
    New Hampshire, USA
    Interesting...how do you use it?
     
    jai likes this.
  10. jai

    jai Orchid addict

    Messages:
    915
    Likes Received:
    119
    Location:
    youngstown ohio
    Put in a spray bottle and go to town. Cover the whole orchid roots and all(not blooms of course remove them if infected). Then let dry. It may take a few applications. But with all arsenal use every so often so that the pests do not build a immunity to it.
     
    Chuck-NH likes this.
  11. orcoholic

    orcoholic Member

    Messages:
    60
    Likes Received:
    20
    I have used Neem Oil in the past, but it's just too expensive for large areas.

    It's my understanding that in addition to suffocation, it makes the leaves taste bad so insects won't chomp on them. The smell while applying it subsides after the oil drys.

    An effective oil is Suffoil-X. It can be applied in the sun or shade and seems to really work well.
     
  12. Ray

    Ray Orchid Iconoclast Supporting Member

    Messages:
    1,725
    Likes Received:
    529
    Location:
    Oak Island NC
    I am generally against the use of oils on orchids, as they can burn plants if they are warm or in sunlight. The best thing to do, if using them, is spray very early in the morning, while the plants are cool.
     
  13. KellyW

    KellyW Orchid wonk Staff Member Supporting Member

    Messages:
    6,530
    Likes Received:
    2,314
    Location:
    Redding, California, USA
    Thanks everyone. I appreciate the input.
     
  14. Ray

    Ray Orchid Iconoclast Supporting Member

    Messages:
    1,725
    Likes Received:
    529
    Location:
    Oak Island NC
    Neem oil can spoil, too. It smells like rotting onions when it's fresh....
     
  15. Chuck-NH

    Chuck-NH Well-Known Member

    Messages:
    1,983
    Likes Received:
    1,925
    Location:
    New Hampshire, USA
    image.jpeg
    Here is a mini cat showing damage from flower thrips
     
  16. jai

    jai Orchid addict

    Messages:
    915
    Likes Received:
    119
    Location:
    youngstown ohio
    KellyW here are a few YouTube videos that can help understand thrips.




     
  17. Christine Thiessen

    Christine Thiessen New Member

    Messages:
    5
    Likes Received:
    1
    You mentioned the "Gold Brand." Is that just the color? Is that the only kind of Listerine that works?
     
    jai likes this.
  18. reloader

    reloader feeding the Catasetums

    Messages:
    13
    Likes Received:
    3
    Location:
    Florida
    guys I found ,if you take a cig. and blow smoke front & back on the blooms the Thrip will leave
     
  19. jai

    jai Orchid addict

    Messages:
    915
    Likes Received:
    119
    Location:
    youngstown ohio
    Its the color. Its the original or antiseptic yellowish\ gold colored one. I am not sure if others work. Just this one has for me and some others.
     
  20. Mohli

    Mohli New Member

    Messages:
    7
    Likes Received:
    2
    Location:
    Hampshire
    I believe it's because of the alcohol in it, some of the newer versions don't. I don't usually spray mine with it, I use a cotton bud on the smaller plants which seems to help
     
    jai likes this.