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<div dir="ltr" data-setdir="false">I have suggested that the local PA Game Commission employees take their vehicles to a car wash between sites. It is easy to see how invasive plants have been transferred from one location to another in the scattered sections of land they own or control. </div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">We would also need a "shaker" before and after leaving a gameland or forest for vehicles driven by hunters and other people who drive the gamelands. </div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Then there is the issue of logging trucks and fracking vehicles. </div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">In PA there are very few differences between the exploitation of natural resources in state forests and the gamelands. None of these differences appear to be significant. As far as I can tell the only real difference between the two is the administration which controls either organization.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">The new transgenic chestnut being pushed to "save" the American chestnut - why? Don't people ever take a walk and actually try to understand the ecology before destroying it? Our yard is full of <i>C. dentata</i> from seeds I collected during walks in the fall - usually after a rain. What I see is <i>C. dentata</i> beginning a comeback after other tree species clear room by dying of various issues such as sudden oak death, Emerald Ash Borer, and ... . The key to producing seeds is direct sunlight on the apical ends of the branches of mature trees. The key to seeds opening is a light rain when the burrs are turning brown. An interesting observation is that the burrs in such a way that birds like crows and other corvids can pluck the seeds from the trees before they hit the ground and rot.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">A last thought on this is that I seldom see <i>C. dentata</i> trees more than a few yards off established trails. When I have done transects or bushwhacked between trails there is almost never <i>C. dentata</i> trees. We are now walking a firebreak which is perhaps 3 years old - I have yet to see a <i>C. dentata</i> tree of any age along it, unlike the older trails we walk.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false"> Richard Gardner</div><div><br></div>
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On Wednesday, August 26, 2020, 01:08:59 PM EDT, Gover Jr., Arthur Earl <aeg2@psu.edu> wrote:
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It might be easier to do this with compressed air rather than compressed water.
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<div class="ydp6a606e41yiv5476521913">I would assume you can find a compressor powered by an internal combustion engine rather than an electric compressor. Or, rig the needed converter to go from vehicle DC-power to amps-AC you would need to run the compressor.</div>
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<div class="ydp6a606e41yiv5476521913">Be well.</div>
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<div>Penn State Wildland Weed Management<br class="ydp6a606e41yiv5476521913">
116 ASI Building<br class="ydp6a606e41yiv5476521913">
University Park, PA 16802<br class="ydp6a606e41yiv5476521913">
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(814) 863-9904<br class="ydp6a606e41yiv5476521913">
(814) 863-6139 FAX<br class="ydp6a606e41yiv5476521913">
<a href="http://plantscience.psu.edu/wildland" class="ydp6a606e41yiv5476521913" rel="nofollow" target="_blank">http://plantscience.psu.edu/wildland</a></div>
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<div class="ydp6a606e41yiv5476521913">On Aug 26, 2020, at 11:35, Jensen, Mary K <<a href="mailto:Kate_Jensen@nps.gov" class="ydp6a606e41yiv5476521913" rel="nofollow" target="_blank">Kate_Jensen@nps.gov</a>> wrote:</div>
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Has anyone had any experience using a backpack pressure washer or other small portable pressure washer to clean tractors, mowers, etc between sites to prevent the spread of invasive seeds?</div>
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thanks!</div>
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<div style="margin:0px;" class="ydp6a606e41yiv5476521913">Kate Jensen<br class="ydp6a606e41yiv5476521913">
Ecologist and IPM Manager<br class="ydp6a606e41yiv5476521913">
Valley Forge National Historical Park</div>
<div style="margin:0px;" class="ydp6a606e41yiv5476521913">1400 North Outer Line Drive<br class="ydp6a606e41yiv5476521913">
King of Prussia, PA 19406<br class="ydp6a606e41yiv5476521913">
phone: 610 783 1035<br class="ydp6a606e41yiv5476521913">
fax:610-783-5384<br class="ydp6a606e41yiv5476521913">
<a href="mailto:kate_jensen@nps.gov" style="margin:0px;color:rgb(17, 85, 204);" class="ydp6a606e41yiv5476521913" rel="nofollow" target="_blank">kate_jensen@nps.gov</a></div>
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