Invasive Plant Management
Invasive plants threaten native habitat, biodiversity, and eco-system health. Invasive plants are non-native plants that have been introduced from other eco-systems, become weedy, and spread out of control. Invasive plants often lack natural enemies and can flourish in areas disturbed by human activity, including trail-sides, road-sides, and logging cuts.
- Garlic Mustard Rosette - Chris Evans
Invasive plants threaten native habitat, biodiversity, and eco-system
health. Invasive plants are non-native plants that have been introduced
from other eco-systems, become weedy, and spread out of control.
Invasive plants often lack natural enemies and can flourish in areas
disturbed by human activity, including trail-sides, road-sides, and
logging cuts.
Once introduced invasive plants can grow into monocultures, crowding out diverse native plants. This reduction in plant variety means less food, less often for native wildlife. Cover and nesting habitat can be lost as well. Invasive plants often have shallow root structures, which can contribute to erosion and degraded water quality in our streams and rivers.
To learn more about Invasives, come to our monthly work party: First Saturday of each month at 10:00am. Check in: Portland Audubon parking lot. (5151 NW Cornell Rd, Portland, 97210). Our efforts generally focus on controlling English Ivy, Garlic Mustard, English Holly, Japanese Knowtweed, Himalayan Blackberry, and several invasive geranium species.
You can also learn more about invasive plants through the following links:
Western Invasives Network’s website: http://www.westerninvasivesnetwork.org/
The Nature Conservancy Global Invasive Species Pages: http://tncweeds.ucdavis.edu/
The Silent Invasion – OPB’s invasive species page: http://www.opb.org/programs/invasives/
