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Full-Text Articles in Agriculture
Release Of Roadside Native Perennial Grasses Following Removal Of Yellow Starthistle, Stephen L. Young, Victor P. Claassen
Release Of Roadside Native Perennial Grasses Following Removal Of Yellow Starthistle, Stephen L. Young, Victor P. Claassen
West Central Research and Extension Center, North Platte
The ecological benefits of a roadside native perennial grass stand are compromised when invasive species become established. We evaluated the potential to regenerate existing native perennial grass stands populated with yellow starthistle (Centaurea solstitialis) on a roadside planting in the lowland hills of the interior Coast Range of northern California. The experiment was designed to determine the effects of mowing, burning, or herbicide spraying, alone and in combination, on the vegetative cover and density of native perennial grasses and C. solstitialis. The study site contained blue wildrye (Elymus glaucus) and purple needlegrass (Nassella pulchra) as well as C. solstitialis. Burn, …
Natural Product Herbicides For Control Of Annual Vegetation Along Roadsides, Stephen L. Young
Natural Product Herbicides For Control Of Annual Vegetation Along Roadsides, Stephen L. Young
West Central Research and Extension Center, North Platte
Natural product herbicides for vegetation control are being considered as alternatives to synthetic herbicides by many public agencies. Studies were conducted along roadsides at the Hopland Research and Extension Center (HREC) in 2001 and 2002 and on California State Route 29 (SR29) in 2002 to evaluate acetic acid, pine oil, and plant essentials compared with glyphosate for control of herbaceous vegetation. In 2001, annual grass control after a single application of pine oil at HREC was 40% or less effective, whereas acetic acid was at least 79% effective. A second application of pine oil or acetic acid did not control …