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Neem seed oil.

This is a discussion on Neem seed oil. within the New Growers: Ask the Senior Members forums, part of the New Growers category; I am recommended in books to use neem seed oil as an insecticide and general ...

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  1. #1
    sarraceniac's Avatar
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    Default Neem seed oil.

    I am recommended in books to use neem seed oil as an insecticide and general antiseptic for infested and poorly plants. As a boy scout many years ago I remembered 'Be prepared' and so I bought some for possible (probable) future use. The only trouble is the label is in an unknown Indian language (apart from the 'Made in India' line) and whilst I read somewhere that it needs mixing with water with a smidgeon of soft soap as a binding agent I haven't a clue on how much to use of what, let alone when. Can I beg fairly humbly for help yet again please?

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    John what I always do I take 10 mls of neem oil and I add into 16 liters of water plus small amount of soft soap( 5 mls) to emulsified the neem oil. Make sure you spray and focus below the leaf to eradicate spider mites. I dont like the smell one kind.Maybe others have their own recipe. So far I dont have any problem with mites. Another technique you can use is just get the garlic juices , mix with water and spray to the orchids, also good.Good luck

  3. #3
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    I use a product called Sunoil that is and insecticidal oil. We do not mix it with soap, just a cap full to a hand spray bottle of water. We spray it on the leaves, but not the blooms or buds of plants. Increasing humidity will often keep spider-mites away without the need to treat with an insecticidal oil.

    Cheers,
    BD

  4. #4
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    Spider mites, I have met before. Some years ago I grew my palms from seed. One warm summer (the UK used to get them) all the palm seedlings keeled over within a few days of each other. I was new to any kind of exotics growing at the time and had never met the sweet little spider mite before. 90% of my valuable palm seedlings were dead before I discovered what it was that had infested them and just simple misting would control them. I got another attack in the cool greenhouse last year on my citruses, but this time I knew what they were and how to nobble them. No relevance to neem seed oil at all. I just felt like telling a boring story about how I learned to love spider mites and kill them with any means to hand.

  5. #5
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    Insects, including mites, don't breathe the way animals do ; but they still need oxygen which is allowed to diffuse into their bodies through holes - called spiracles ( as I remmber my bug lore )and these holes are pretty small , so small that any oily liquid can easily bridge them and effectively block them up. This is why oils in general kill bugs. So any old oil will do that job, duiluted heavily with water, and with a buit of wetting agent to make it into an emulsion.
    The products of the Neem tree are natural insecticides , quite apart from doing the job when presented as an oil. If you use any oil, you won't kill the bugs you miss ;if you use Neem oil, you may expect that the insecticidal nature will mean that you can kill some bugs not actually hit by the spray , as long as the insecticide is effective. Unfortunately it does lose its potency quite quickly - hours rather than days, so overall, it is not - so I am assured - much better than any other oil such as the corn oil I use to fry my potatoes.
    Another objection to oils is that they make plants a bit messy , but Neem does seem to disappear - it breaks down I am told - in a matter of only a week or two off leaves.
    But it does leave my spray tank and spray lance in a very mucky state - which is the same outfit I use for daily spraying of aerial roots and mounted plants, and it takes a devil of a lot of cleaning to get rid of it , so I have stopped using oils completely for these reasons. - there are other things I can spray if I need to treat pests.

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    I do not recommend neem oil for Paphs and cattleyas. It causes mottling pf their leaves. This is a phenomenon I have tested and observed. You get light green patches or bloches on the leaves. I have completely stopped the use of oils on my orchids. Insecticidal soap is a good though. In case of soap the mechanism of action is different. The exoskeleton (skin) of insects is made up of chitin. Now it happens that chitin dissolves in alkalis (basic solutions) Soap being alkaline in nature has the same effect, further it acts as a wetting/sticking agent and insects are not able to get it off. Once they are in contact they are doomed.

  7. #7
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    Hello,

    Sorry for bumping this thread, but i didn't want to start a new one.

    I bought some Neem Oil and used it today, using the AOS recommendation: "Mix 1 teaspoon (5 ml) of neem oil and ˝ teaspoon (2.5 ml) of a gentle, plant-safe liquid dish soap (as a spreader and sticker for the oil) to 1 quart (.9 l) of warm water"; I used water at room temp. instead of warm water.

    I sprayed my cyms, phals and oncs early in the morning for preventive measures.

    My question is the following, the Neem product that I acquired is from a reputable spanish company that specializes in organic agriculture. It was labelled, NEEM EXTRACT 30% SC. - Composition: 30% neem oil.

    Does this mean that I use 5 ml as instructed or since it's 30% neem, or I should use 16.6 ml per quart of water?

    Thank you all for your help.

  8. #8
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    Quote Originally Posted by sarraceniac View Post
    I am recommended in books to use neem seed oil as an insecticide and general antiseptic for infested and poorly plants. As a boy scout many years ago I remembered 'Be prepared' and so I bought some for possible (probable) future use. The only trouble is the label is in an unknown Indian language (apart from the 'Made in India' line) and whilst I read somewhere that it needs mixing with water with a smidgeon of soft soap as a binding agent I haven't a clue on how much to use of what, let alone when. Can I beg fairly humbly for help yet again please?
    Hi, why don't you post a pic of instructions and I'd happily translate it for you. If, I can read that language. Just give it a try.

  9. #9
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    I have 100% Neem oil that is 100% organic. All the instructions I found to mix it was based on 100% Neem oil not a mixture of Neem oil. Just the information I discovered while discovering Neem oil.

    Miller

  10. #10
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    I can't believe I decided to ask this question on this forum AFTER I had sprayed about half my orchids with Neem seed oil. I hd a bad atack of scale this winter and since i was pretty vigilant (alcohol on Qtips) I THOUGHT I had it under control. Well, I was putting some of my plants outside (they go out in the summer) and I discovered quite a few of them had it as bad as ever. I had bought Neem oil a ihile ago and they assured me it was OK to use on my orchids, and of course, I am hoping "the experts" were right. What say you guys? Bad for my plants? Bad for scale? Got any other suggestions? Anna in NJ

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