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By Dan Inman Paul wiser and Kati Gordon

Invasive plants in PA. By Dan Inman Paul wiser and Kati Gordon . Definition of invasive speces. Def-  Any species that has been introduced to an environment where it is not native, and that has since become a problem for a separate species . Characteristics of invasive plants.

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By Dan Inman Paul wiser and Kati Gordon

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  1. Invasive plants in PA By Dan Inman Paul wiser and Kati Gordon

  2. Definition of invasive speces Def-  Any species that has been introduced to an environment where it is not native, and that has since become a problem for a separate species

  3. Characteristics of invasive plants • not be native to North America; • spread, reproducing by roots or shoots; • mature quickly; • if spread by seed, produce numerous seeds • can grow in many different conditions

  4. Some invasive plants in PA • Dutch elm disease • Hemlock woolly adelgid • Garlic mustard • Norway maple • Sycamore maple  • Tree-of-heaven • Princess-tree

  5. Dutch elm disease • Originated in Asia • Arrived in the 1930s in Cleveland • Was once a plant used in every day gardens but was found that it kills 100 if trees

  6. Hemlock woolly adelgid • It was introduced Japan and China introduced accidentally around 1924 • Stretches from Maine to Georgia, including 42 counties in eastern half of PA • Kills hemlock trees with are home to birds and cover trout streams

  7. Garlic Mustard • Brought to the US by European sealers • It has spread across the county • Found in over 30 states • Will choke out native plants

  8. Tree-of-heaven • Native to China • Was introduced in the 1700s • Was introduced for decretive purposes • It drowns out native species; damages pavement and building foundations in urban areas • The states that are Highlighted in the picture have the tree in them

  9. Princess-tree • Was introduced in 1840 • Was for decorative purposes • Can reach up to 50 feet tall • It grows very fast and destroys natural areas

  10. The End By Dan Inman Kati Gordon and Paul Weiser

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