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<p class=MsoNormal style='margin-bottom:3.75pt;line-height:24.0pt;background:
white'><font size=6 color="#333333" face=Georgia><span style='font-size:21.0pt;
font-family:Georgia;color:#333333'>New ’seed destructor’ will
combat weeds<o:p></o:p></span></font></p>
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</span></font></span></span></font><![endif]><font size=1 color="#20276c"
face=Arial><span style='font-size:9.0pt;font-family:Arial;color:#20276C'>May
25, 2010 <o:p></o:p></span></font></p>
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face="Times New Roman"><span style='font:7.0pt "Times New Roman"'>
</span></font></span></span></font><![endif]><font size=1 color="#20276c"
face=Arial><span style='font-size:9.0pt;font-family:Arial;color:#20276C'>Nicole
Eckersley <o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:3.75pt;margin-right:0cm;
margin-bottom:3.75pt;margin-left:0cm;line-height:17.4pt;background:white'><font
size=2 color="#121212" face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:#121212'>A device designed to stop the growth of weeds by
destroying their seeds before planting will be trialled this harvest by the <st1:place
w:st="on"><st1:PlaceType w:st="on">University</st1:PlaceType> of <st1:PlaceName
w:st="on">Western Australia</st1:PlaceName></st1:place>.<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:3.75pt;margin-right:0cm;
margin-bottom:3.75pt;margin-left:0cm;line-height:17.4pt;background:white'><font
size=2 color="#121212" face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:#121212'>The device, the ‘Harrington Seed Destructor’,
was invented by Darkan wheat farmer Ray Harrington to combat
herbicide-resistant weeds, particularly ryegrass and wild radish, by milling
seeds to prevent them germinating.<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:3.75pt;margin-right:0cm;
margin-bottom:3.75pt;margin-left:0cm;line-height:17.4pt;background:white'><font
size=2 color="#121212" face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:#121212'>“I adapted an 85 year-old mining technology to build
a high-impact, high-speed cage mill which destroys 90-95 per cent of weed
seeds, preventing them from germinating,” Mr Harrington said. “This
discovery came after years of trying other methods of destroying weed seed
including catching and carting, cooking and cremating.”<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:3.75pt;margin-right:0cm;
margin-bottom:3.75pt;margin-left:0cm;line-height:17.4pt;background:white'><font
size=2 color="#121212" face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:#121212'>Mr Harrington said meeting UWA’s Winthrop Professor
Stephen Powles was the turning point in the development of the device.<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:3.75pt;margin-right:0cm;
margin-bottom:3.75pt;margin-left:0cm;line-height:17.4pt;background:white'><font
size=2 color="#121212" face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:#121212'>“Steve was a guest speaker at a No-Till Farming
Association reunion in Kojonup and I told him about the mill. He said he had a
gut feeling that it would work and made the decision to trial it. Since
then the Grains Research and Development Corporation has been heavily involved
with this project, by funding trials and the development of the machine.”<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:3.75pt;margin-right:0cm;
margin-bottom:3.75pt;margin-left:0cm;line-height:17.4pt;background:white'><font
size=2 color="#121212" face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:#121212'>The destructor is towed behind a header at harvest.
The header separates the chaff fraction containing weed seeds from the straw,
which is fed into the mill. This pulverises any weed seeds in the chaff
fraction and returns it to the paddock.<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Source: Australian Food News<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><a
href="http://www.ausfoodnews.com.au/2010/05/25/new-seed-destructor-will-combat-weeds.html?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+AustralianFoodNews+%28Australian+Food+News%29">http://www.ausfoodnews.com.au/2010/05/25/new-seed-destructor-will-combat-weeds.html?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+AustralianFoodNews+%28Australian+Food+News%29</a><o:p></o:p></span></font></p>
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<p class=MsoNormal><st1:State w:st="on"><st1:place w:st="on"><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>Lorraine</span></font></st1:place></st1:State><font
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face=Arial><span style='font-size:10.0pt;font-family:Arial'>Curriculum Manager </span></font><o:p></o:p></p>
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