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| I recently bought some neem oil and would like to make a spray for my roses. What is the recipe? and when and how frequently do I use it?
Thanks |
Follow-Up Postings:
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| A quick question for you. What does the label tell you to do? |
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| Nothing on the label. |
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| That seems strange. All bottles should have instructions. The bottle of neem oil i have clearly shows the following. Mix Neem oil with water in the ratio of 5ml for every 1 litre of water. Spray this mixture well over the leaves and stems of plants, early morning or late afternoon to avoid ultra violet rays. This should be repeated two weeks after first application and as necessary afterwards. |
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| Not to discourage you, but, I tried spraying neem oil one year and it was a complete waste of time. |
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- Posted by HollySprings 8a Mississippi (My Page) on Thu, Mar 17, 05 at 20:57
| And, in addition to being virtually ineffective on BS, it's phytotoxic to boot and will fry the bejeezus out of the foliage if the temps are above about 85. |
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| The brand of neem oil might have a web site. Do you know the name? I used neem oil last year. The only rose (out of about 40) that got black spot was one that didnt get the spray. My neighbor's roses all got lots of black spot. It killed the aphids as well. I was very happy with the result. Even using the neem oil, there WERE lady bugs, spiders, and praying mantises, and the soil has lots of earthworms, so I think that the natural predators & soil life are still there. I also grow garlic, chives, shallots, cilantro, rosemary, thyme, in the rose bed as well, bot I doubt that those had significant impact on the black spot. I think it was the neem oil combined wiht rose hygeine (pruning and clean bark mulch). Also, my rose varieties were not necessarily resistant varieties. Most had black spot problems the year before. The brand that I used was called "100% pure neem oil" (strange brand name) distributed by Natural Greenhouse Products. There are many brands available, some are pre-mixed, some are purified. None are cheap, but then neither were the roses. This brand might be local to this area, I dont know. I used according to instructions. It was a butter consistency gel at room temperature, so I placed the bottle in a pot of warm water until the oil melted. Then mixed 4tsp per gallon along with 1 tsp ivory liquid dish detergent; shook well; sprayed on non-sunny days, getting all rose surfaces, leaves and stems, wet. I used it for several weekends during active growth, then a couple more times during the summer (which here is dry and sunny). It's stinky (but in a garden fertilized with fish emulsion, we are used to that) the smell goes away in a day. If yours is 100% neem oil, then my guess is to use it the same way (maybe just spray a few roses at first & see how they do). This year I got excited and used it as a dormant spray as well, although I am not aware that it will work in that manner. (also, a month earlier I had used lime/sulfer on the same bushes) At this point this year, the roses have about 4 inches of grown, some with buds. SO FAR (knock on rosewood), no blackspot or aphids (unfortunately I did not keep a garden calendar previously so I forget when these would appear). Again, there are signs of other insect life in the garden (lady bugs and spiders). If I do see aphids or black spot, I'll get out the neem and use as I did last yer. I have not done a scientific experiment to see if the stuff works. But I do think that it does and obviously I am sold on it. WHether it works for you will depend on your roses, climate, and other factors, of course.. Hope this helps. |
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| I use a product called Leaf Shine that was recommended by a rose specialist I buy my roses from. I have only just got on to this product and don't know yet what the benefits are. It's a natural product so I am happy to use it. So far I have had no problems but too early to report success. I will let you know next year what I think. Anyone have any thoughts about Epsom salts, how to use it such as spray on the foilage or water through the roots on roses, rhodos and azaleas? Zone 8 in rainy Abbotsford BC (dry in the summer) |
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| Neem Oil products are broad spectrum poisons that will kill beneficial insects as well as your pests unless used with due diligence. Whether Epsom Salts will be of any benefit or not depends on the condition of your soil. If you have a soil with low levels of Magnesium (Epsom Salts are Magnesium Sulfate) spraying some around might be of some help, but the only way to know that is to have a good, reliable soil test done. The Magnesium in Epsom Salts is very soluble and will not stay in your soil very long, but then again the amounts usually prescribed to use are so small that little is actually available to the plants. |
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| I was greived to see my lovely fuzzy bumblebees killed by Neem, I watched them staggering around rose petals before dropping to the ground, dead. I had sprayed neem in good faith believing it to be an organic spray, that would not poison the environment. It should be labeled as an apicide, for that is what it is. Now I use Cornell spray, which must be applied more often, but is far safer. I use 1 and 1/2 tsp. of baking soda 1 quart water 1 tsp. canola oil. This is 1/2 tsp. more baking soda, than the common recipe, and it does leave a powdery residue which works better in preventing the spread of p.m. and blackspot and rust. You can tell the white powder is not pm. because the leaf texture is not altered by the baking soda, unlike powdery mildew. |
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| I have a dreadful problem with these beetles called cetonie and June bugs;they chew up the flowers of roses like Japanese beetles do, but they come out in April, May and June, so they really damage the glorious spring flush. I got a large bottle of Neem oil and want to start a spraying program, to see if this will help me manage these awful pests somewhat.I read that you have to spray every 3 or 4 days, however,when the sun is low (very late in the day here in Tuscany, Italy). Does anyone have any comments or advice? thanks, bart |
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- Posted by tyler kunter portland or(tylerkunter@comcast.net) onFri, Sep 23, 11 at 18:24
| Neem oil is the best, but it has to be pure cold pressed to be effective. As far as foliage burn, you need to read the instructions and use it accordingly. If you live in a hot climate with lots of sun, only use in the evening. In regards to killing beneficial insects this is completely untrue, we have a healthy lady bug and bee population that are not bothered by it, if you use it mixed correctly. I use Dyna-Gro Neem oil mixing it as instructed but instead of the mild soap it says to mix with it I use Dr. Bronners peppermint castile soap (same quantity). If you mix it use warm water and let the mixture sit overnight as neem oil is an oil and tends to not mix very well, especially if using cold water. Remix and enjoy natural cure |
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| oh...I forgot to mention, we use it about every 2 weeks. I use it on my garden for pest control and various other plants for leaf blight. Make sure you look at the ingredients, if its not 100% neem oil then dont expect similar results. I have heard all sorts of problems from blended mixtures or ones that use a chlorinated process to extract the neem oil...you want cold pressed neem oil 100% |
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| I have never used neem oil before, but iam having so many problems with spider mites this season. I have 125 roses, and i used bayer 3 n 1 plus mite killer product, its a good product and i spray weekly but the mites still seem to be accumulating faster than i can spray, so iam hoping the neem oil along with the bayer will help. Has anyone use the neem oil for this purpose (mites)? |
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