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<p class="MsoNormal"><span style="color:windowtext">You can grow thornless blackberries.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:windowtext"><a href="https://www.organicgardener.com.au/blogs/blackberry-season">https://www.organicgardener.com.au/blogs/blackberry-season</a><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:windowtext">Sebranek, Joseph AT List member  <a href="mailto:sebranek@iastate.edu">sebranek@iastate.edu</a>;
</span><span style="color:windowtext">Crossbow is fantastic stuff. I’ve used it in Wisconsin to completely wipe out blackberries, prickly ash, multiflora rose, sumac and a host of other undesirable “woody” plants. I haven’t found including Roundup to be necessary
 but then I also use a somewhat higher concentration of Crossbow than suggested because I use it simply for spot spraying. The best part is that it kills the root systems completely so that plants don’t come back once they have been sprayed.<o:p></o:p></span></p>
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