Nancy J. Loewenstein School of Forestry and Wildlife Sciences Auburn University

Transcription

1 Invasive Plants on the Horizon Nancy J. Loewenstein School of Forestry and Wildlife Sciences Auburn University

2 Rue-leaved saxifrage (Saxifraga tridactylites) Leaves small, 3-lobed, may have reddish tinge Photos: Wayne Barger Flowers small, white, 5-petaled; blooms in March Zig-zag stems are red in color; Prolific seed production

3 Rue-leaved saxifrage (Saxifraga tridactylites) Winter annual About 6 inches tall Grows in bare, dry locations with sandy, rocky soils. Prefers calcareous soils Could pose threat to limestone glades So far, mostly found growing in gravel on shoulder of roads (entire shoulder can be tinged red). - Wayne Barger Photo: Wayne Barger

4 Japanese chaff flower (Achyranthes japonica) Watch list A blooms late summer through early fall flowers no petals fruit Leaves opposite with entire margins seed dispersal! Photos: Chris Evans,

5 Japanese hollyfern (Cyrtomium falcatum) Fred Nation Requires moist soil Can handle deep shade Evergreen in mild climates NJL Spider brake fern (Pteris multifida) NJL

6 Spider brake fern (Pteris multifida) NJL NJL

7 fig buttercup, lesser celandine (Ficaria verna) Showy flowers, typically eight petals leaves are dark shiny green, kidney- to heart-shaped, rubbery Wildland Weeds - Spring 2014

8 fig buttercup Plants form dense infestations and then die back after flowering (short life cycle). tubers and bulbils* produce new plants photos: * not all subspecies produce bulbils

9 Chinese elm, lacebark elm (Ulmus parvifolia) Watch list B Nancy Loewenstein, Auburn University distinctive bark serrate margin, base may be slightly unequal flowers and fruits in the fall no corky ridges on stems Franklin Bonner, USFS,

10 doubly serrate margin singly serrate margin winged elm (Ulmus alata) Chinese elm Photos: Nancy Loewenstein, Auburn University

11 Chinese holly (Ilex cornuta) horns Nancy Loewenstein, Auburn University There are many cultivars spines are lacking in some. Nancy Loewenstein, Auburn University glossy, leathery, evergreen leaves terminal spine points down, next two point up like horns (scientific name cornuta means horn)

12 loquat (Eriobotrya japonica) Showing up in wooded areas in south AL Fairly cold tolerant (plant to 8-10 F; flowers and fruit to 27 F) Howard F. Schwartz, Colorado State University, Bugwood.org Evergreen shrub to small tree Leaves dark green, glossy, wrinkled, with brownish fuzz on underside Fragrant, off-white flowers 2 inch yellowish orange fruit (edible) Rebekah D. Wallace, University of Georgia, Bugwood.org

13 yew podocarpus, Buddist pine, yew pine (Podocarpus spp.) Dave s Garden Evergreen shrub to small tree Leaves long and narrow, may bunch at ends of branches Berry-like seed cones USDA zones 8-10 Showing up on wooded sites in south Alabama Forest and Kim Starr, Starr Environmental, Bugwood.org

14 We need your help!! Mapping invasive plants Updating the ALIPC list

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17 Last update of ALIPC list was in 2012

18 Checklist for Invasive Plant Listing by State and Regional Invasive Plant Councils Developed by the National Association of Invasive Plant Councils (ALIPC is a member). Goal of checklist is to ensure that listing is done with: highest standards for scientific rigor and ecological expertise transparent procedures and clear documentation opportunity for public review consistent, objective methodology to assure comparability across lists

19 Checklist for Invasive Plant Listing by State and Regional Invasive Plant Councils Assessment Methodology Provides a list of factors to consider Can develop an assessment or find one that s in use Scoring and Categorization Develop or select a consistent, explicit method of generating a score for each species. Determine classification categories (how scores translate into whether a plant is considered invasive or not)

20 Checklist for Invasive Plant Listing by State and Regional Invasive Plant Councils Identify individuals and organizations to provide input and approval of assessments. Experts to help with assessments Committee of experts to review and refine draft assessments Committee of stakeholders to approve draft assessments (e.g., state and federal agencies, universities, land managers, botanic gardens, horticulture industry, etc.)

21 Checklist for Invasive Plant Listing by State and Regional Invasive Plant Councils Documentation Sources of information used for assessing each species Public review Post draft assessments online (including documentation) Circulate announcement to interested parties Accept comments for days Revise assessments Involves both committees Post response document for public review Accept comment for 30 days Review and revise as needed Publish list

22 Checklist for Invasive Plant Listing by State and Regional Invasive Plant Councils Will involve significant time commitment and stakeholder input. Information to help with assessments field experience mapping data the more data on EDDMapS, the better!! assessments from nearby states ( literature Plant listing committee - will need volunteers Stakeholder committee - will need volunteers

23 Another emerging threat non-native insects Forest Health, Invasive Species, and Silviculture Trainings North Alabama Workshop June at Monte Sano State Park Lodge in Huntsville (registration limited to 50) South Alabama Workshop - July at the Solon Dixon Forestry Center near Andalusia (registration limited to 50) offered by Southern Regional Extension Forestry and ACES identification, diagnosis and management of native and invasive pests of forests one day of indoor instruction followed by a half day in the field CEUs 7 Cat 2 CFEs 8.5 PLM hours pesticide points applied for

24 Questions? Funding: USDA NIFA-RREA Pyracantha spp. NJL