Now showing items 1-3 of 3

  • Biological control of scotch broom : pest watch 

    Andreas, Jennifer E. (Pullman, Washington : Washington State University. Extension., 2016-04)
    Scotch broom, Cytisus scoparius, is an invasive perennial shrub that displaces desirable species in pastures, roadsides, and forestlands. The state of Oregon estimates that, annually, $39 million is lost primarily in the ...
  • Collecting and releasing biological weed control agents in Washington state 

    Whaley, Dale K.; Andreas, Jennifer E. (Pullman, Washington : Washington State University. Extension., 2015-09)
    The Integrated Weed Control Project (IWCP) from Washington State University is a way for landowners and land managers to learn about biological weed control and to learn about biological agents available to suppress ...
  • Pest watch : knotweed 

    Andreas, Jennifer E.; DesCamp, Wendy C. (Pullman, Washington : Washington State University. Extension., 2015-02)
    Knotweeds are aggressive noxious weeds that invade and degrade streams and riverbanks, causing erosion, bank collapse, and disruption of local ecosystems. They are typically found growing along waterways. These perennial ...