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<p class="MsoNormal">I have been monitoring, and trying to control, a population of
<a href="https://www.inaturalist.org/taxa/447077" target="_self">Incised Fumewort</a>
<a href="https://www.inaturalist.org/taxa/447077" target="_self">Corydalis incisa</a> on a property in tennessee since April 2015; as far as I know this is the only report for Tennessee (although there could be a lot more of it out there that people are just
unaware of). <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Despite efforts at hand pulling, it has continued to spread. The seeds are dispersed by the explosive seed pods (<i>Ballochory</i> is a type of dispersal where the seed is forcefully ejected by
<a href="https://en.wikipedia.org/wiki/Dehiscence_(botany)#Explosive_dehiscence" title="Dehiscence (botany)">
explosive dehiscence</a> of the fruit)… so despite being careful they go everywhere… !<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">So the thing is a winter annual; so the time to get it is now! Yesterday I thought I would try my “vinegar-soap-salt” combo spray; and it has worked great! The
<i>Corydalis</i> is growing in a mass of <i>Euonymus fortunei </i>so there is no chance of collateral damage to non-target plants… In 24 hours the little delicate seedlings were all totally wilted!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">When I went back out this morning I spotted a few more and hosed them too… so I hesitate to say “control” because I am sure more seeds will sprout, but this give me some hope we can prevent it from spreading. Please watch out for this plant;
it would be hard to spot in the winter… and would be very similar to native <i>Corydalis
</i>… <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Milo Pyne<o:p></o:p></p>
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