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  #1 (permalink)  
Old 30-03-2008, 04:26 PM
allotmentlady's Avatar
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Default Derris Liquid/Dust

Is it true that derris dust/liquid will be a banned substance from the end of this year? I was earwigging a conversation this morning and wondered if it was gossip or truth?
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Old 30-03-2008, 04:39 PM
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Tis indeed true.
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Old 30-03-2008, 05:43 PM
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So much for organic pest control then! I thought it was made from some kind of jungle shrub and was comparatively safe, but I may be wrong?

Having said that Nicotine used to be recommended as a pesticide not too long ago, and it was organic!
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Old 30-03-2008, 06:34 PM
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It is indeed Snadger but its license is not being renewed by the manufacturers.
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Old 30-03-2008, 07:19 PM
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I've found an article on the web from Harrods Horticulture giving details:-

--------------------------------------------------------------------------------
February 05, 2008

Organic Insecticides
A quick rummage around a typical gardener's shed will uncover various forms of derris, the well-known organic insecticide - but all that is set to change next year with the proposed outlawing of the product.


Rotenone - the active ingredient obtained from the crushed root of the derris tree - has been linked to the progressive brain disorder Parkinson's disease, and a subsequent investigation by the Pesticide Safety Directive (PSD) has led to the decision to withdraw all derris-based sprays and powders.

Although no definitive date has been set for the removal of derris from the market, sources claim that products will be available until September 2009. This will give organic gardeners plenty of time to find new artillery for the constant battle against garden pests such as aphids, caterpillars and flea beetles.

Among the products to be targeted are Liquid Derris and Derris Dust, but organic alternatives do already exist in the shape of sprays containing fatty acids, plant oils and pyrethrums. Derris itself has been used in the amateur horticultural sector since the mid-19th Century.

According to NHS statistics, Parkinson's disease afflicts up to 120,000 people in the UK'
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Old 27-04-2008, 12:51 PM
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Hi Peeps.
What they didn't say was that the tests were done on lab rats and they were injected with the stuff daily for 5 years before symptoms occured.
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Old 27-04-2008, 03:37 PM
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Its more like another one of these EEC Regs. A few years ago lots of Companys stopped making products rather that pay the now fees.
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Old 27-04-2008, 04:01 PM
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Quote:
Originally Posted by Norm
Hi Peeps.
What they didn't say was that the tests were done on lab rats and they were injected with the stuff daily for 5 years before symptoms occured.
You been using it have you Norm?

I think I'll pass.
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Old 27-04-2008, 10:39 PM
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I did 'till I found out yesterday that they tested it on rats. I threw it in the bin this morning.
I don't see the point in testing on animals to see what effect a substance will have on humans. I think they should test on humans. Start with politicians, move on to lawyers, then accountants...
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Last edited by Norm : 27-04-2008 at 10:43 PM.
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Old 17-06-2008, 07:40 AM
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Most good garden shops will sell derris and pyrethrum.

There are many different makes of both and mixtures of the two are stronger than either when used separately. They are capable of killing caterpillars and a range of different pests such as aphids and others which are listed on the bottle.

They are sometimes mixed with lindane and other organo-chlorine compounds and these ... are not organic.

Derris is sometimes available as a dust ‘derris dust’ and is very effective against the fleabeetle which eats holes in the leaves of brassica plants and radishes.

Do not let this substance trickle into your fishpond as it began as a Malaysian fish poison.

Also, if you keep bees and have to spray anything in flower, use pyrethrum or nicotine in the evening and it will ...be harmless by the time your bees start work in the morning. Safe General Pesticides - Grow Organic Vegetables for a Healthier Life Style!
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