GIS Weed Mapping Project in the Colusa Basin Watershed

In an effort to identify areas of invasive weed infestations in the watershed, the Colusa Basin Watershed Coordinator is creating GIS mapping of 8 species of invasive weeds:

1. Arundo

2. Salt Cedar (Tamarisk)

3. Tree of Heaven

4. Barbed Goat Grass

5. Purple Starthistle

6. Yellow Starthistle

7. Perennial Pepperweed

8. Yellow Water Primrose

This project is the first comprehensive weed mapping effort in the Colusa Basin Watershed and will be a great resource for land managers in Colusa, Glenn and Yolo Counties. This is a big project and we are asking for stakeholder assistance to identify areas in the watershed where populations of these weeds exist. We are requesting the following information which can be input on our Weed Survey form (word doc) and emailed to our Watershed Coordinator:

· Weed name

· Specific location

· Extent of infestation (approx. number of acres, or number of plants, or square feet)

· If possible, a photo

Please email invasive weed information to: Mary Fahey

or call: 530.458.2931 X 117

Your assistance is greatly appreciated!



Weeds Invading Colusa Basin
Read the article in the Colusa Sun Herald