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You are here > Gardening message boards > Allotment tales > organic cure for white fly?

Discussion:

organic cure for white fly?

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Message 1 - posted by laneycass (U1701296) , Oct 15, 2007

Does anyone know an organic and inexpensive way of getting rid of white fly? all my brassicas are covered in them.
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Message 2 - posted by melonslayer (U9789917) , Oct 15, 2007

spinosad

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Message 3 - posted by Mowhay (U9086463) , Oct 15, 2007

laneycass, my friend swears by "garlic water" for all sorts of pests, he uses it in his greenhouse every year. According to him all you need to do is take a garlic bulb and simply cut it in half so all of the cloves are split and put both halves into some water. Leave this overnight then use the water in a spray to spray the white fly? I have not tried it myself yet but he assures me it works? Let us know if you try it and the results?

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Message 4 - posted by Greengirl (U5195373) , Oct 15, 2007

just pinging

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Message 5 - posted by AuntyPodean (U3545080) , Oct 15, 2007

Hi laneycass. This is a recipe which someone recommended last year for whitefly. I haven't used it, but I think it should work:-

1 cup of vegetable oil
Half cup water
1 tablespoon washing up liquid

Blend together for about a minute then dilute at the rate of 1 part mixture to 40 parts water. Spray on plants to control whitefly, leaf miner and mites.

Also recommended was an organic insecticidal soap spray called Savona.

Hope this helps.

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Message 6 - posted by "Old Fogey" (U8196337) , Oct 16, 2007

Hi melonslayer, where do you buy it?

spinosad

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Message 7 - posted by laneycass (U1701296) , Oct 16, 2007

thanks everyone I'll have a go !

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Message 8 - posted by melonslayer (U9789917) , Oct 16, 2007

"Old Fogey" try doing search since spinosad sold under several names.

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Message 9 - posted by TopVeg (U7524957) , Oct 16, 2007

Washing the leaves with a soapy solution is the easiest organic way
topveg.com/2007/08/1...

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Message 10 - posted by goonhavern (U5897398) , Oct 16, 2007

Planting garlic bulbs near the plants worked for me and also marigold plants.

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Message 11 - posted by xqbgal (U2354767) , Oct 17, 2007

Hi I used the veg oil, water & washing up liquid last year & it did work!! It does leave an awful smell which almost put me off the sprouts,luckily I havent had problems with whitefly this year.

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Message 12 - posted by janetclaire (U3311015) , Oct 19, 2007

pinging for information

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Message 13 - posted by Garlic Butter (U7382864) , Oct 19, 2007

This is an interesting thread,because I use the organic soap method to "wash" all my brassica's during spring and summer,every 10 days or so. But I was told that Whitefly do not in fact really do ay damage,they are just a nuisance.Thoughts would be welcome

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Message 14 - posted by shakespearlad (U8540315) , Oct 19, 2007

I have used moth balls in my greenhouses for the last 3 years and have rarely seen a white or green fly.

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Message 15 - posted by hiltop (U7188872) , Oct 19, 2007

ping

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Message 16 - posted by spicevalleyliza (U10083185) , Oct 19, 2007

hello, i live over in portugal and get white fly on my parsley and strawberries in the middle of june, i used a mixture of fresh chillis and hard soap which we can buy over here easily and water, it seemed to work well along with the marigolds

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Message 17 - posted by Researcher 6118631 (U6118631) , Oct 20, 2007

ping

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Message 18 - posted by Toh-Maag (U3642672) , Oct 22, 2007

I did a search, found a company called Fargro and contacted them, this is the reply I got :-

"Conserve is only approved for use in professional horticulture with staff trained in pesticide use. Therefore sales may not be made for
garden or allotment use.
At the moment this is no spinosad containing product available for "home garden" or allotment use in the UK."

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Message 19 - posted by "Old Fogey" (U8196337) , Oct 22, 2007

At least you got farther than I did TM. Guess it is back to the soapy water then?

At the moment this is no spinosad containing product available for "home garden" or allotment use in the UK."

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Message 20 - posted by Toh-Maag (U3642672) , Oct 30, 2007

I wrote to Defra and got a very thorough reply.

"Thank you for your enquiry regarding the possibility of using pesticide products containing the active substance spinosad in the home garden. Your enquiry has been passed to the Pesticides Safety Directorate to reply.

There are currently two approved products containing spinosad, 'Conserve' (MAPP 12058) and `Tracer' (MAPP 12438). Both are approved for use as horticultural insecticides by professional users only, and are not approved for use in the home garden. It is for companies to decide what products they wish to market and to date we have not received any applications for approval of a home garden product containing this active substance. There is nothing to stop a company making such an application if they have generated, or have access to, the necessary data to satisfy us as to the product's safety and efficacy.

You stated that you believed the use of pyrethrum to be not as safe as the use of spinosad. As mentioned above spinosad products are not approved for use in the home garden as an application for this use has not been made and evaluated. There are currently approvals for pyrethrins (which is the classification for pyrethrum) for use in the home garden. Approvals are only granted if companies can demonstrate that the products are effective, humane and present no unacceptable risks to human beings, animals or the environment

As `Pyrethrins' have been around for some time now this active substance is in the process of being reviewed in the EC wide routine review programme of older active substances. This programme ensures that the data package underlying these approvals meets all modern safety standards. At the time of writing approvals for products containing 'Pyrethrins' continue as a decision has yet to be taken in the EC process. Once the routine review process is complete a decision will be made which will lead either to re-registration of the existing products or their withdrawal from the market. But I should emphasise that were we to have any concerns over the safety of any product we would not hesitate to take the necessary regulatory action. We have no such concerns over 'Pyrethrins'.

I hope that this clarifies the position with regard to spinosad and pyrethrins. If you have any further questions or would like the contact details for the approval holder of spinosad products please do not hesitate to contact me."

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