1. Invasive plant species
By: Grace Kenyon & Maddie Woodfield

2. Giant Hogweed
One of the most dangerous invasive species in New York due to its ability to cause permanent scarring through painful burns caused by its sap.
Can grow up to 20 ft tall
Originally came from Asia
It was brought from Asia for decoration and became an invasive species
Will kill off other native plants by blocking sunlight
Notify the DEC before tackling it yourself, spray with herbicide,
or cut down carefully do not burn.

3. Honeysuckle
There are native and invasive species of honeysuckle present in NY.
These plants grow densely and will suppress and out-compete other native species.
The invasive species are also can harm migrating animals that eat the berries.
Hand removal, burning it in an open space, and herbicides
Some invasive honey suckle came from Asia
The purpose of bringing invasive honeysuckle plants to America
was for decoration purposes

4. Purple Loostrife
Purple loosestrife is rapidly displacing native species such as cat tails
The root system can also raise the water and reduce water flow
Can be pulled by hand, and species of beetles have been released to help control
Europe and Asia
Brought in when seeds were in soil used as ballast in European sailing ships
and discarded in North America
Can take over swamp areas easily

5. Garlic Mustard Europe and parts of Asia
Introduced for medical use and food
Garlic mustard is dangerous to forests because it is able to dominate understories
Can release a chemical that damages relationships between native grasses and fungi
Hand pulling, and herbicides
Can kill native grasses and fungi
Form dens strands that choke out native plants

6. Kudzu Invasive vine from Japan
The plant was introduced as a centennial exposition in Philadelphia and New Orleans in 1883
The Kedzu increased the amount of nitrogen in soil so it decreased the soil productivity
Kills off native plants that cant have a high concentration od nitrogen in it soil
Apply herbicide when vines are actively growing

7. Japanese Knotweed and bamboo’s
Originally from Japan
Was introduced as a decorative garden plant
Grows rapidly hard to get rid of and the lack of diversity in plants leads to soil being more likely become eroded
Kills off native plants by cutting off their sunlight
Spray the plant when the flowers bloom with a weed killer

8. Hemlock wooly Aldridge
Native to East Asia
Feeds off the snap of hemlock trees and this threatens the eastern hemlock tree
It was accidently introduced to North America in 1924
Soil treatment is considered the best way to get rid of the invasive plant

9. Water chestnut Originates in Asia, China, Japan, India, ext.
It was introduced in the Hudson river – Mohawk river drain basin. It was possibly intentional
Water chestnuts kill most native water plants
Reduced plant growth and reduced levels of dissolved oxygen (can lead to killing fish)
Mechanical, hand pulling, harvesting, or chemical are all ways to get rid of the water chestnut.

10. Japanese Stilt grass
Decreases biodiversity by killing native grasses, sedges, and herbs
Also places where infested often have more invasive species
Originates from Japan
Introduced to North America in Tennessee most likely through packing material
Mowing, Hand pulling, Limit soil disturbance

11. MugWort Its pollen is a reason hay fever is spread
It is problematic in nurseries, field grown crops, and turf grass
Spray with herbicides
Europe and Eastern Asia
Has medical uses and was introduced for that purpose and through a contaminant in a ship ballast

12. Wild Parsnip
Like giant hogweed, wild parsnip sap contains chemicals that will cause a burn within 48 hours
Europe and Asia
Most likely brought by European settlers for its edible roots
Burn the site where grown fallowed by applying herbicides to site

13. COMMON BUCKTHORN
This plant degrades the wildlife habitat and threatens the future of forests, wetlands and prairies by killing off native plants for nutrients, light and moisture.
It originates Europe
Brought in the 1800 used as an ornamental plant
Remove trees with fruit first to reduce the amount of seeds

14. JAPANESE BARBERRY
Japanese barberry can threaten native species in a variety habitats ranging from closed canopy forests, to woodlands, wetlands, pastures, meadows and wasteland
Mowing or cutting for small populations or areas where herbicides may not be used
Native to Japan
Was introduced as a decorative plant

15. MULTIFLORA ROSE
The multiflora rose invades forest edges in dense thickets that exclude native species
Seedlings can be hand pulled, larger plants can be dug out, frequent repeated cutting or mowing
Native to Japan and Korea
Asian people brought it with them to America and planted them

16. ORIENTAL BITTERSWEET
Oriental bittersweet's vine can strip away the protective bark, of trees and other plants it climbs
Additional weight can also cause branches to break. It can also shade out native species.
Native to Japan and Korea
Introduced in the 1860’s
Vines can be pulled by hand, which should be done before fruiting herbicides on cut stems.

17. Fun page

19. THANK YOU !!!!!!!!!!!!