BLUE BIRD MINE SITE PICTURES OF SEVERELY DAMAGED spotted knapweed PLANTS.
Pictures by: Ron Gibson, USDA Forest Service and Todd Breitenfeldt, Jefferson Co., MT.
These plants all show damage caused by one or more of the insects released on this site over the past 10 years. Note the old dead stems from last year and how this years stems are so much shorter, less robust and seem to be dying.
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