[MAIPC] Invasive plants and climate change
Judy Fulton
jfulton5 at gmail.com
Fri Feb 1 11:08:34 PST 2019
Yes, I am really seeing Miscanthus sinensis spreading throughout
Baltimore County and other areas in Maryland. I think that it is further
along the invasive curve than black fountain grass (Cenchrus
purpurascens aka Pennisetum alopecuroides), but I am now seeing C.
purpurascens starting to spread in the wild. I believe that we need to
pay attention right away to this new invader, its cultivars and closely
related species, including purple fountain grass (Cenchrus setaceus aka
Pennisetum setaceum).
Judy
____________________________________________
Judith P. Fulton
EcoPlant Consulting: Native and Invasive Plants
Master Gardener, University of Maryland Extension
Chair, Maryland Invasive Species Council Subcommittee on Invasives Lists
Board, Mid-Atlantic Invasive Plant Council
410-337-3701
jfulton5 at gmail.com <mailto:jfulton5 at gmail.com>
On 2/1/2019 1:43 PM, Liz Nalle wrote:
> Miscanthus and Pennisetum are both problems in coastal Delaware but I
> would add that they spread primarily from being planted, then the
> seeds are wind blown. Regarding Phrag, some areas here have given up
> on eradication, and are now concentrating on managing it, if that’s
> even possible. We are very prone to flooding, though, so with sea
> level rise which we are living, it will be interesting to see it move
> as it doesn’t tolerate standing water.
>
> Excellent point about Baccharis spreading due to road salt! I see it
> in many more places recently.
>
> Liz
>
> On Fri, Feb 1, 2019 at 1:14 PM Judy Fulton <jfulton5 at gmail.com
> <mailto:jfulton5 at gmail.com>> wrote:
>
> When people mention groundsel tree, I'm assuming that they are
> referring to Baccharis halimifolia. This species is a native to
> the Coastal Plain ecoregions throughout the mid-Atlantic, but it
> is becoming adventive in the Piedmont and various mountain
> ecoregions. I agree with Margaret Chatham that a likely reason for
> this movement is salt tolerance -- I see the plant fairly
> frequently in the difficult strip next to highways that have been
> treated with salt. So, I'm not sure that Baccharis halimifolia is
> going to become a problem.
>
> Judy
>
> ____________________________________________
>
> Judith P. Fulton
> EcoPlant Consulting: Native and Invasive Plants
> Master Gardener, University of Maryland Extension
> Chair, Maryland Invasive Species Council Subcommittee on Invasives
> Lists
> Board, Mid-Atlantic Invasive Plant Council
> 410-337-3701
> jfulton5 at gmail.com <mailto:jfulton5 at gmail.com>
>
> On 2/1/2019 12:07 PM, MARGARET L CHATHAM wrote:
>> I’d suggest another factor at work in the spread of groundsel
>> tree (and Typha angustifolia): road salt. As the roadways become
>> saltier, they offer better habitat for salt-tolerant plants. (And
>> Ii see Miscanthus spread as primarily driven by planted seed
>> sources — strictly anecdotal comment.)
>>
>> Margaret
>>
>>> On Feb 1, 2019, at 11:42 AM, Stephen Hiltner
>>> <stevehiltner at gmail.com <mailto:stevehiltner at gmail.com>> wrote:
>>>
>>> I'll chime in with a few observations. The first invasive
>>> example of Miscanthus I saw many years back was in a field
>>> outside of Newport, Rhode Island during my one and only visit
>>> there. In NC at turn of the century it was only invasive on
>>> Mount Mitchell and some horticulturist of great stature, perhaps
>>> the one who wrote "the book" on shrubs/trees, said in a
>>> discussion at NC Bot Gardens that only one variety of Miscanthus
>>> was invasive. In recent years I've seen examples of invasion in
>>> NJ and PA along freeways.
>>>
>>> Groundsel tree is one to look out for, as it spread from the NC
>>> coast up freeways into the piedmont and has become a serious
>>> invasive in the Durham, NC area, invading grasslands and lining
>>> freeway right of ways. Seen a few incidents in central NJ but
>>> not much yet.
>>>
>>> Go to Princeton battlefield, and it's hard to imagine
>>> porcelainberry getting any worse--topiary on a massive scale.
>>>
>>> Steve
>>> PrincetonNatureNotes.org <http://princetonnaturenotes.org/>
>>>
>>> On Fri, Feb 1, 2019 at 10:55 AM Liz Nalle <liznalle5 at gmail.com
>>> <mailto:liznalle5 at gmail.com>> wrote:
>>>
>>> Here in southern, coastal Delaware, Phragmites australis and
>>> Hydrilla verticillata are big problems. I’m not sure how
>>> much climate change has facilitated their spread, but they
>>> are from father south in Asia I believe.
>>>
>>> Liz Nalle
>>> Inland Bays Garden Center
>>> Frankford DE
>>>
>>>> On Jan 31, 2019, at 9:36 PM, Jil Swearingen
>>>> <jilswearingen at gmail.com <mailto:jilswearingen at gmail.com>>
>>>> wrote:
>>>>
>>>> All,
>>>>
>>>> EDDMapS might be enlisted here to help. If one can do a
>>>> query over time (e.g., 20-30 years) of invasive plant
>>>> species occurring in the Southeast states that eventually
>>>> start being reported in the mid-Atlantic in recent years,
>>>> that would produce a list to start working with. Chuck
>>>> Bargeron would be the obvious go-to person to run this
>>>> query. I don't know how to do it with the tools available
>>>> for users.
>>>>
>>>> Thanks,
>>>>
>>>> Jil
>>>>
>>>>
>>>>
>>>> .......................
>>>> Jil Swearingen
>>>> Invasive Species Consultant
>>>> /In the Weeds/
>>>> 410-200-7085
>>>>
>>>>
>>>>
>>>>
>>>> On Thu, Jan 31, 2019 at 9:22 PM James Remuzzi
>>>> <james at sustainablesolutionsllc.net
>>>> <mailto:james at sustainablesolutionsllc.net>> wrote:
>>>>
>>>> I would second the USDA work on CO2 re vines would add
>>>> Mile a Minute to those species previously mentioned
>>>> —vines: both invasive and native, have exploded in last
>>>> 20 years and are having a devastating impact on Native
>>>> Forests and Shrublands.
>>>>
>>>> JRR
>>>>
>>>> James R. Remuzzi
>>>> Sustainable Solutions, LLC
>>>> www.sustainablesolutionsllc.net
>>>> <http://www.sustainablesolutionsllc.net/>
>>>>
>>>> On Jan 31, 2019, at 4:27 PM, frazmo <frazmo at gmail.com
>>>> <mailto:frazmo at gmail.com>> wrote:
>>>>
>>>>> Lewis Ziska with USDA has done interesting work about
>>>>> the worrying effects of rising CO2 levels on invasive
>>>>> vines (plus native Poison ivy). My sense is that Kudzu
>>>>> is gradually becoming worse in the northern
>>>>> mid-Atlantic as things warm. Colder temps used to hold
>>>>> back Hedera helix in our north but that obviously is
>>>>> changing. I'm sure there is a long list of southern
>>>>> invasives marching toward us now... Cheers, Steve
>>>>> Young, Arlington VA
>>>>>
>>>>> On Thu, Jan 31, 2019 at 10:10 AM Ossi, Damien (DOEE)
>>>>> <damien.ossi at dc.gov <mailto:damien.ossi at dc.gov>> wrote:
>>>>>
>>>>> Question: What, if any, invasive plant species
>>>>> appear to be spreading into the mid-Atlantic due
>>>>> to climate change? I know there’s been talk of
>>>>> southern magnolia and other species that are
>>>>> native to just south of here starting to
>>>>> naturalize in our area, but I’m more interested
>>>>> exotic invasives.
>>>>>
>>>>> What invasive plants are common in southern
>>>>> Virginia or northern North Carolina that we just
>>>>> don’t have in our area, but could move here with
>>>>> warmer climates?
>>>>>
>>>>> Thanks,
>>>>>
>>>>> Damien
>>>>>
>>>>> *Damien P. Ossi*
>>>>>
>>>>> Wildlife Biologist
>>>>>
>>>>> Fisheries and Wildlife Division
>>>>>
>>>>> Department of Energy & Environment
>>>>>
>>>>> Government of the District of Columbia
>>>>>
>>>>> 1200 First Street NE, 5th Floor
>>>>>
>>>>> Washington, DC 20002
>>>>>
>>>>> Desk: (202) 741-0840
>>>>>
>>>>> Web: doee.dc.gov <http://www.doee.dc.gov/>
>>>>>
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