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ANNUAL BROME SEED GERMINATION IN THE NORTHERN GREAT PLAINS Japanese brome (Bromus japonicus Thunb) and downy brome (B. tectorum L.), alien weedy cool-season annual grasses have invaded thousands of acres of the Northern Great Plains, Great Basin, California Annual Grasslands, and Palouse Prairie. A general discussion on environmental control of Japanese bro...
PHENOLOGY OF INVASIVE ANNUAL WEEDS IN DOWNY BROME COMMUNITIES Downy brome (Bromus tectorum) has invaded millions of acres of formerly big sagebrush (Artemisia tridentata)/bunchgrass rangeland in western North America. Downy brome dominance truncates succession by eliminating the recruitment of seedlings of native perennial species. Downy brome communities ar...
SPECIFICITY OF A DELETERIOUS RHIZOBACTERIUM FOR BIOLOGICAL WEED CONTROL Pseudomonas fluorescens strain D7 is a root-colonizing bacterium that inhibits downy brome (Bromus tectorum) growth. In advance of commercialization as a biological control agent, strain D7 must be tested for host plant specificity. Agar plate bioassays in the laboratory and plant-soil bioassays i...
USING SHEEP TO REDUCE EXOTIC WEEDS IN EASTERN IDAHO: THEIR POTENTIAL AS BIOCONTROL AGENTS Exotic weeds are rapidly expanding into the rangelands of Western North America. In Eastern Idaho, downy brome, Russian knapweed, spotted knapweed, and leafy spurge have established dense infestations of relatively discrete patches. Research at the USDA-ARS-United States Sheep Experiment Station a...
INFLUENCE OF THREE WEED SPECIES ON SOIL NUTRIENT AVAILABILITY Weeds use a multitude of strategies to facilitate their invasiveness. We hypothesized that weeds may increase soil nutrient availability to elevate their competitive stature. The hypothesis was tested in the greenhouse, examining and contrasting plant-soil relationships among downy brome (cheatgrass...
ANNUAL BROME GERMINATION IN THE NORTHERN GREAT PLAINS Japanese brome (Bromus japonicus Thunb) and downy brome (B. tectorum L.), alien weedy cool-season annual grasses have invaded thousands of acres of the Northern Great Plains, Great Basin, California Annual Grasslands, and Palouse Prairie. A general discussion on environmental control of Japanese bro...
DOWNY BROME SEED GERMINATION Downy brome (Bromus tectorum) is an exotic, highly invasive annual grass that has invaded millions of hectares of of big sagebrush (Artemisia tridentata)/bunchgrass rangelands in the western United States. Downy brome closes plant communities to the recruitment of seedlings of native perennial gras...
RHIZOBACTERIA INHIBITORY TO GRASS WEEDS. Soil bacteria have been discovered that can be used as biological agents to suppress downy brome and certain other grass weeds in small grains. Our research on these organisms has shown that their use has the potential to reduce tillage, agrochemical usage and related ground and surface water conta...
ANNUAL BROMES -- GOOD OR BAD? Japanese brome (Bromus japonicus Thunb) and downy brome (B. tectorum L.), alien weedy cool-season annual grasses have invaded thousands of acres of the Northern Great Plains, Great Basin, California Annual Grasslands, and Palouse Prairie. A general discussion of research findings on particularly Jap...
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