[NatureNS] Ticks Out - the Pyrethrum Option

From: "Dave&Jane Schlosberg" <dschlosb-g@ns.sympatico.ca>
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Date: Tue, 6 May 2014 09:08:37 -0300
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Colorado State University puts out a list of pesticides considered safe for 
use on organic gardens.  Here is what their website says:
"Pyrethrum is the most widely used botanical insecticide in the United 
States. The active ingredient, pyrethrin, is extracted from a chrysanthemum 
plant, grown primarily in Kenya, Rwanda, Tanzania and Ecuador.
Most insects are highly susceptible to pyrethrin at very low concentrations. 
The compound acts rapidly on insects, causing immediate knock down. Flying 
insects drop almost immediately after exposure. Fast knock down and insect 
death don't, however, always go hand in hand; many insects recover after the 
initial knockdown phase.
Pyrethrum is non-toxic to most mammals, making it among the safest 
insecticides in use. The Environmental Protection Agency has approved it for 
more uses than any other insecticide.... Pyrethrum has been assigned a 
CAUTION rating."

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