Posts Tagged: invasive grass

Invasive Ornamentals for Sale

I read an interesting paper* recently about the sale and spread of invasive ornamental plants in the U.S. The paper describes the results of a study that examined whether identifying a plant species as invasive influenced its availability for purchase from the plant trade industry. The authors...

Invasive grasses exacerbate wildfire at regional scales: we need regional efforts to manage them

New research published in PNAS (Fusco et al 2019) highlights the role of invasive grasses in creating new wildfire regimes at not just local but regional scales. Weed scientists are familiar with the concept of the grass-fire cycle (D'Antonio and Vitousek 1992): exotic grass invasions promote...

Delta Conservancy seeking partners for Arundo control and habitat restoration in the Delta

Arundo donax is devastating to riparian habitat and becoming increasingly widespread in the Sacramento – San Joaquin Delta. To counter this growing problem, the Sacramento-San Joaquin Delta Conservancy (Delta Conservancy) envisions a delta-wide, long-term Arundo Control and Restoration...

Cheatgrass: How many impacts can one species have?

There was a post written a few months ago by Rebecca Ozeran entitled “A Tale of Two Grasses,” describing her experiences with cheatgrass and contrasting its characteristics with another invasive annual, medusahead. It was an excellently written blog, and I encourage you to check it...

Grazing & revegetation for suppression of barb goatgrass and medusahead

Elise Gornish, Josh Davy, Travis Bean, and I are testing the use of sheep for management of late-season invasive annual grasses. This trial is taking place at five sites at the Hopland Research and Extension Center – two with barb goatgrass, two with medusahead, and one mixed. Treatments...

Hopland in early spring, when grasses are tillering.

Hopland in early spring, when grasses are tillering.

Sheep having a square meal (18 m x 18 m of goatgrass).

Sheep having a square meal (18 m x 18 m of goatgrass).

Grazing was sufficient to prevent invasives from going to seed.

Grazing was sufficient to prevent invasives from going to seed.

The research sheep were heavily guarded.

The research sheep were heavily guarded.

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