 Boise National Forest is directed by the U.S. Forest Service to " control the establishment , spread , or invasion of non @-@ indigenous plant species in otherwise healthy native vegetative ecosystems . " The forest 's plan addresses the need to control invasive plants , and management efforts include chemical , mechanical , and biological control methods . Invasive plants that are of particular concern in Boise National Forest include spotted knapweed , yellow star @-@ thistle , rush skeletonweed , and leafy spurge , among others . 
 Boise National Forest is directed by the U.S. Forest Service to " control the establishment , spread , or invasion of non @-@ indigenous plant species in otherwise healthy native vegetative ecosystems . " The forest <a href='null_genetive' title='1'><mark>'s</mark></a>plan <a href='uninflect' title='2'><mark>addresses</mark></a> the need to control invasive plants , and management efforts include chemical , mechanical , and biological control methods . Invasive plants <a href='null_relcl' title='3'><mark>that</mark></a>are of particular concern in Boise National Forest include spotted knapweed , yellow star @-@ thistle , rush skeletonweed , and leafy spurge , among others . 
Boise National Forest is directed by da U.S. Forest Service to " control tdaestablishment , spread , or invasion of non @-@ indigenous plant species in otherwise healthy native vegetative ecosystems . " The forest  plan address thdaotta control invasive plants , and management efforts include chemical , mechanical , and biological control methods . Invasive plants r of particular concern in Boise National Forest include spotted knapweed , yellow star @-@ thistle , rush skeletonweed , and leafy spurge , among others .