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Malathion Rate
Hi, I wish to control scale on my Bay Tree with Malathion.
What is the mixture rate to use. Do I need to mix it with while oil for it to be effective. Thanks Mark |
#2
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Malathion Rate
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#3
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Malathion Rate
I'd never use such a toxic poison, and I'm sorry, but you are a poster boy for
why we have to terminate these homeowner pesticides. READ THE LABEL. The label tells you everything you'd need to know how to use this tremendously deadly poison. Why did you choose malathion when Sunspray oil, or insecticidal soap would be far more effective than malathion? On 4 Jul 2003 03:10:57 -0700, (Mark Bellinger) wrote: Hi, I wish to control scale on my Bay Tree with Malathion. What is the mixture rate to use. Do I need to mix it with while oil for it to be effective. Thanks Mark |
#4
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Malathion Rate
In article , animaux writes: | I'd never use such a toxic poison, and I'm sorry, but you are a poster boy for | why we have to terminate these homeowner pesticides. READ THE LABEL. The label | tells you everything you'd need to know how to use this tremendously deadly | poison. It's not that deadly to mammals! Humans are in little direct danger from it - that isn't the problem. | Why did you choose malathion when Sunspray oil, or insecticidal soap would be | far more effective than malathion? Well, I agree that malathion isn't a good choice, not least because scale insects tend to be resistant to it, but insecticidal soap is only a little more effective. Much less nasty, of course. On pot plants, scraping is the best solution, but that might be impractical on a large bush. I have heard that oil sprays do work, but the effective ones aren't exactly non-toxic. Regards, Nick Maclaren. |
#6
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Malathion Rate
Mark Bellinger wrote:
Hi, I wish to control scale on my Bay Tree with Malathion. What is the mixture rate to use. Do I need to mix it with while oil for it to be effective. A dormant oil spray, mixed at the 1/2 strength "summer oil spray" rate would be more effective, but iirc you should not use oil spray when the temperature is about 90 F. degrees. There will be directions on the label. Bob |
#7
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Malathion Rate
On Fri, 04 Jul 2003 15:59:47 -0500, zxcvbob wrote:
Mark Bellinger wrote: Hi, I wish to control scale on my Bay Tree with Malathion. What is the mixture rate to use. Do I need to mix it with while oil for it to be effective. A dormant oil spray, mixed at the 1/2 strength "summer oil spray" rate would be more effective, but iirc you should not use oil spray when the temperature is about 90 F. degrees. There will be directions on the label. Bob That's why they invented SunSpray. It's a horticultural oil which you can use in any season. I live in Texas and have used it to treat a horrific scale problem on one of my redbuds. V |
#9
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Malathion Rate
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#10
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Malathion Rate
I agree, it is not very toxic to humans as it is readily broken down in the liver.
It is also rapidly biodegradable. However, anyone with a compromised liver had better give it a pass. I dont think it is very effective against scale, however. Ingrid On 4 Jul 2003 17:05:37 GMT, (Nick Maclaren) wrote: It's not that deadly to mammals! Humans are in little direct danger from it - that isn't the problem. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List Manager: Puregold Goldfish List http://puregold.aquaria.net/ www.drsolo.com Solve the problem, dont waste energy finding who's to blame ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Unfortunately, I receive no money, gifts, discounts or other compensation for all the damn work I do, nor for any of the endorsements or recommendations I make. |
#11
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Malathion Rate
For the original writer, one cannot ask a question here some days without a
landslide of rudeness coming at you. What is the purpose of this arrogance and cursing? You could just be silent if you are unable to countenance a comment. Here is one side from an owner of Laurus nobilis or the bay tree. Malathion is the same family of chemicals as Lindane. Lindane is what the doctor paints your kids with if they come home from school with scabies. If you take a cruise and put a patch behind your ear for mal-de-mer, it is an organo-phosphate. Neither is a human disaster used in small quantities though the Malathion won't cure the scale problem on just one try. These are organo-phosphates, a term with organic gardener problems. The term sets off numerous uninformed speeches. The same pesticide free gardeners use other chemicals making them pesticide users usually condoning their practice by using one that is an old product and therefore harmless. Nicotine, arsenic and copper sulphate were favored for years. If you plan to use the bay leaves for home cooking, you would want to use a pesticide formulated for vegetables. The oil won't do the job either and will make a mess for you that is not pleasant indoors. Scale occurs all year around. What we do with our bay tree is be quite vigilant and clean off the scale physically with very small foam paintbrushes soaked in alcohol followed with a soap (any dish soap) and water bath. Leaf axils of the plant are hard to clean. This is not failsafe so you will need to watch and repeat. The first stage of the scale insect is nearly invisible so it is a difficult problem on a large plant. Scale prefer other plants to bay trees so you usually do not get a heavy infestation. On both the bay tree and on large citrus when scale infestation is heavy you can completely defoliate the tree, every leaf. Then you can scrub the barked over parts with a soapy solution of any pesticide you like. You do this on a heavy layer of newspaper with the plant lying on it's side. Discard the newspaper. In a cool sunny spot the tree will refoliate and if no other plant in your collection remains to reinfect the bay, it should be clean. Keep Ficus out of your indoor collection, it is a scale magnet. |
#13
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Malathion Rate
CpRensCoNY wrote:
For the original writer, one cannot ask a question here some days without a landslide of rudeness coming at you. What is the purpose of this arrogance and cursing? You could just be silent if you are unable to countenance a comment. [snip] The oil won't do the job either and will make a mess for you that is not pleasant indoors. Scale occurs all year around. What we do with our bay tree is be quite vigilant and clean off the scale physically with very small foam paintbrushes soaked in alcohol followed with a soap (any dish soap) and water bath. Leaf axils of the plant are hard to clean. This is not failsafe so you will need to watch and repeat. The first stage of the scale insect is nearly invisible so it is a difficult problem on a large plant. Scale prefer other plants to bay trees so you usually do not get a heavy infestation. The original poster never said the bay tree was indoors. Malathion *can* be used to control scale insects, but only if you get them before they form a hard waxy shell. After that, a summer weight oil spray is the best treatment, unless you wanna use a systemic (like cygon) or pick the insect off by hand as you do. I've used oil spray to kill scale on gardenias (or was it camellias?) and it is effective. I don't think I'd use cygon on a bay tree if I planned to use the leaves for cooking. It's probably safe enough -- it's not like you'll make a big salad exclusively of bay leaves -- but it still seems wrong somehow. Regards, Bob |
#14
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Malathion Rate
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#15
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Malathion Rate
Malathion
is the same family of chemicals as Lindane. Lindane is what the doctor pain Acrually, Lindane is a chlorinated hydrocarbon(organo-chlorine) and malathion is an organo-phosphate. They both have the same mode of action but are from different chemicalgroups. Either way, using anything other than horticultural oil on scale is sort of a waste. You could pick them off but it takes forever. Toad |
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