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cholas Hill <fernh
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The reason Herbicides  are so much better from a farmers point of v=
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David is that herbicides kill the weeds close to the planted crop.
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The weeds in the middle of the rows are not very harmful and are easy
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to control by cultivation.
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However the weeds close to the plants cause the reduction in yields.
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They rob moisture, nutrients sunlight and harbour insects but there
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is no way a farmer can remove them by cultivation. short of the old hand=
hoe.
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In addition they make harvesting more difficult by not allowing the crop
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to dry out in the short days of fall.
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Farmers tell me herbicides give the best return on investment of
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all their inputs. But maybe we would like to pay more for food!
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Enjoy the thaw
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Paul
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On February 4, 2016 at 8:33 AM David Patriquin <davidgpatriquin@yaho=
o.ca> wrote:
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Incororating resistance to Roundup & now a couple of other herbici=
des (because weeds also becoming resistant) in GMO crops has one huge effec=
t on wildlife that I don't see discussed much or at all: the complete o=
bliteration of weedy species over massive areas, not seen much in NS but go=
to Que and Ont where field after large field of GMO soybean, maize and can=
nola are grown, and they are virtually dead except for the crops; even afte=
r the crops are taken off they remain free of weedy species. Under traditio=
nal management, weeds were set back by tillage to allow crop to get establi=
shed, then a diversity of weedy species grow up in the understory, flowerin=
g and providing food for pollinators, seeds for wildlife.. and after the cr=
op is taken off, groundcover. No more so. The farmers like the GMO crops be=
cause of the simplified management, but with selection of appropriate culti=
vars, some mechanical management, reducing some types of tillage...weeds ca=
n be controlled without eliminating them and our farm fields can be more su=
pportive of wildlife. 
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Glyphosate is toxic to plants and bacteria, so has huge effects on the=
microbiotia also..
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Agreed, Nick: "
<span style=3D"font-size: 16px;">As naturalists, impacts on natural wo=
rld are our major responsibility."</span>
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<span style=3D"font-family: Arial; font-size: small;"><strong><span=
style=3D"font-weight: bold;">From:</span></strong> Nicholas Hill <fern=
hillns@gmail.com><br/> <strong><span style=3D"font-weight: bold;">To:</=
span></strong> "naturens@chebucto.ns.ca" <naturens@chebucto.ns.=
ca> <br/> <strong><span style=3D"font-weight: bold;">Sent:</span></stro=
ng> Thursday, February 4, 2016 7:32 AM<br/> <strong><span style=3D"font-wei=
ght: bold;">Subject:</span></strong> Re: [NatureNS] Public consultation re =
use of pesticide Atrazine in Canada: a re-evaluation<br/> </span>
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David,=20
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no confusion here. Listserve focus is on nature not human safet=
y. Atrazine article deals with human safety concerns not biodiversity.
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If we want to take a stand on pesticides it would be for their =
biodiversity implications of which there are tons. Roundup is an example bu=
t there are many
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showing impacts of other pesticides on native bees and other po=
llinators.
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Nick
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