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I N V A S IO N OF THE N A T U R E SNA T C H ER S :

Learn about the threat of noxious weeds and invasive species in Florida, including their definitions, impact on agriculture and environment, and ways to control them. Explore the federal and Florida lists of noxious weeds and invasive plants, and find out how plants are added to these lists. Discover some of the notorious Florida invasive species like Kudzu, Carrotwood, Water-Spinach, and Water Spangles.

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I N V A S IO N OF THE N A T U R E SNA T C H ER S :

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  1. INVASION OF THE NATURESNATCHERS: The seeds are scattered – the terror grows!

  2. What is a noxious weed? • What is an invasive species? • Can a species be both noxious and invasive? • How does a species become a Florida noxious weed? • What was the latest DPI Weed of the Month?

  3. Definitions of a noxious weed • Federal • Florida

  4. FEDERAL NOXIOUS WEED ACT OF 1974 7 U.S.C. §§ 2801-2814, January 3, 1975, as amended 1988 and 1994. seeking to have plants included in Rule 5B-57.007, F.A.C., may make application to the department on form DACS-08215: Application for Inclusion to the Noxious Weed List. Noxious weed: any living stage (including seeds and reproductive parts) of a parasitic or other plant of a kind which is of foreign origin, is new to or not widely prevalent in the U.S., and can directly or indirectly injure crops, other useful plants, livestock, poultry or other interests of agriculture, including irrigation, navigation, fish and wildlife resources, or the public health.  

  5. FLORIDA NOXIOUS WEEDS Any living stage of a parasitic or other plant which may be a serious agricultural threat in Florida; have a negative impact on endangered, threatened, or commercially exploited plant species; or if the plant is a naturalized plant that disrupts naturally occurring native plant communities.

  6. Florida has lots of bad plants and Lots of lists! • Florida Exotic Pest Plant Council (FLEPPC) list of invasive plant species • IFAS assessment of non-native plants in Florida’s natural areas • FDACS noxious weeds and invasive species • FDACS prohibited aquatic plants

  7. Invasive species Florida Exotic Pest Plant Council (FLEPPC) An exotic plant has been introduced to Florida, either purposefully or accidentally, from outside of Florida. An invasive exotic plant sustains itself outside of cultivation and is expanding its range in Florida plant communities.

  8. Invasive species FLEPPC • Category Iinvasives are altering native plant communities by displacing native species, changing community structures or ecological functions, or hybridizing with natives. • Category IIinvasive exotics have increased in abundance or frequency but have not yet altered Florida plant communities to the extent shown by Category I species.

  9. IFAS assessment of non-native plants in Florida’s natural areas • Assessments are based on scientific research • Recommendations are given by region (north, central and south): • Invasive and not recommended • Invasive and not recommended except for specified and limited use • Caution (manage to prevent escape) • OK (not considered a problem at this time)

  10. How are plants added to the Florida noxious weed list? Form: APPLICATION FOR INCLUSION TO THE NOXIOUS WEED LIST DACS-08215

  11. And plants can be added to the federal list . . . Now under consideration is Dolichandraunguis-cati (L.) L.G.Lohmann

  12. Let’s look at a few Florida noxious weeds and invasive species.

  13. The Vine that Ate the South

  14. KUDZU Leaves alternate, compound with three broad, lobed leaflets

  15. CARROTWOOD Evergreen tree, carrot-colored inner bark Leaves alternate, compound Leaflets 2-6 pairs, oblong, leathery, shiny Fruit yellow orange when ripe 3 black seeds covered by a red-orange coat

  16. WATER-SPINACH Leaves alternate, simple arrowhead shaped but variable, to 7 in long Stems hollow

  17. WATER SPANGLES; SALVINIA Floating aquatic Hairs on leaf surface

  18. Questions?

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