One northern state recently instituted an informational tag requirement on commercially available invasive species that are not currently banned from sale. This approach warrants research to determine its feasibility here. TN-IPC has targeted its education outreach to public consumers through our brochures “Tennessee’s Native Plant Alternatives to Exotic Invasives” and “Landscaping with Native Plants.” Because plants sold at big box stores are decided on a regional basis, the national and regional organizations NAIPC and SE-EPPC are best equipped to lead an education campaign for these large retailers. TN-IPC will encourage this.<\/p>\n
\nComment 2<\/h4>\n
Chinese parasol tree (Firmiana simplex) is well-established in north Knoxville (Knox County) and should be added as an emerging threat due to the rapidity with which I see it multiplying. I have witnessed stakes cut from saplings of this tree rooting and sprouting after being stuck into the ground for tomato supports. I suspect it would root from a branch node, if a cut bole were placed on the ground. Not sure what is happening with the seeds. Not seen it in bloom yet where it is established, but it is a very aggressive root sprouter, even in shade. I suspect this particular population came from a tree that was planted as an ornamental. This plant should not be sold!!!!! Just Google \u201cChinese parasol tree for sale\u201d and freak yourself out on the returns.<\/p>\n
I expect porcelainberry [Ampelopsis brevipedunculata] to make its way out into the more rural and protected areas rather quickly. The birds spread them copiously and young plants are sprouting vigorously this year (2017) in north Knoxville, likely due to all the rain we\u2019ve had this year. I see new vines quite often.<\/p>\n
This is a first pass on the list. I\u2019ll give the list more thought as I have time. \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0 -Lisa Huff<\/i><\/p><\/blockquote>\nTN-IPC Response<\/h4>\n
After visiting the infestation site in North Knoxville and noting the ability for the species to be invasive in adjacent states to the south, TN-IPC agrees Firmiana simplex<\/em> could pose a threat to Tennessee plant communities in the future and will add the species as an Emerging Threat. Hopefully, the ongoing eradication efforts in North Knoxville will be successful and keep the species from spreading further.<\/p>\nAmpelopsis brevipedunculata<\/em> is listed as an Emerging Threat.<\/p>\n\nComment 3<\/h4>\n
When I worked in the Cumberland Plateau region of Tennessee, I dealt with beefsteak plant (Perilla frutescens) as an emerging threat. Never saw it where I worked until 2013 or 2014 and then all of a sudden it was popping up frequently. At the time, it was mainly invading roadsides, floodplains, and trail-edges. It was tough to keep pace with the spread of the plant but early detection and rapid response helped make control efforts possible. EDDMapS shows the distribution of beefsteak plant to be statewide so its status should at least be listed as an emerging threat.<\/p>\n
Big box stores have been selling this plant and other cultivars for some time now. As long as that continues, I would imagine the threat of its invasion to become more problematic.
\n-Justin Coffey<\/i><\/p><\/blockquote>\nTN-IPC Response<\/h4>\n
Beefsteak plant is considered a threat in Kentucky and Virginia and has been previously documented from many counties in Tennessee. TN-IPC agrees this species can be invasive. Due to its broad distribution across the state, the plant will be added as an Established Threat.<\/p>\n
\nComment 4<\/h4>\n
I agree that Perilla frutescens seems to be an emerging problem. I have seen it here in Hamilton County.
\nGlechoma hederacea \u2013 creeping charlie is also very common here.
\nCynodon dactylon \u2013 [Bermuda grass] Everywhere. Almost seems like people are encouraging this stuff\u2026\u2026.
\nConium maculatum poison hemlock \u2013 is also a very common weed here in Hamilton County.
\n-Lyn<\/i><\/p><\/blockquote>\nTN-IPC Response<\/h4>\n
TN-IPC agrees Conium maculatum, Cynodon dactylon,<\/em> and Glechoma hederacea<\/em> are weedy plants that grow in disturbed habitats in Tennessee. However, the objective of the list is to focus on species that “pose a significant threat to native plant communities.” In our view, these species do not usually invade intact native plant habitats and, therefore, do not warrant inclusion on the list. See comments on Perilla frutescens<\/em> above.<\/p>\n","protected":false},"excerpt":{"rendered":"Overview and Request for Public Comments Tennessee Invasive Plant Council (TN-IPC) has revised its Invasive Plants of Tennessee list, last […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-429","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.tnipc.org\/index.php?rest_route=\/wp\/v2\/pages\/429","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tnipc.org\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.tnipc.org\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.tnipc.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tnipc.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=429"}],"version-history":[{"count":14,"href":"https:\/\/www.tnipc.org\/index.php?rest_route=\/wp\/v2\/pages\/429\/revisions"}],"predecessor-version":[{"id":431,"href":"https:\/\/www.tnipc.org\/index.php?rest_route=\/wp\/v2\/pages\/429\/revisions\/431"}],"wp:attachment":[{"href":"https:\/\/www.tnipc.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=429"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}