2019 Early Detection Newsletter Now Available

The Invasive Species Early Detection Team treated a population of Smilo grass in the campground area at Pinnacles National Park.

NPS \ Stephany Dery

November 2019 - The 2019 issue of Early Detection News is now available. Brought to you by the Invasive Species Early Detection (ISED) Program, this newsletter has the latest on invasive plants in the Bay Area. In 2019, surveys took place between March and October at Golden Gate National Recreation Area, Point Reyes National Seashore, John Muir National Historic Site, and Pinnacles National Park.

Noteworthy early detections in Golden Gate included:

• Around 30 yellow star thistle found and eradicated off of the Baquiano Trail near Pacifica; and
• Two purple starthistles found growing in the middle of the Coastal trail during a re-visit at Mori Point.

Noteworthy early detections at Point Reyes included:

• New Zealand Nightshade/Porororo found and mostly eradicated at three sites in Point Reyes;
• Jimson weed at a revisit site off of Marshall Beach Rd, near the L Ranch;

Noteworthy early detections at Pinnacles included:

• Cheatgrass found and removed on the Balconies trail, the last known site in the park where it exists; and
• Smilo grass populations treated in the campground area.

Noteworthy early detections at John Muir includde:

• Persistent populations of stinkwort hand-pulled at three locations;

View the full newsletter for more details.

See more from the Bay Area Nature & Science Blog