Serving Southern Jefferson County in the Great State of Montana
Serving Southern Jefferson County in the Great State of Montana
SPOTTED KNAPWEED BORING WEEVIL: The spotted knapweed boring weevil (Cyphocleonus achates) on a spotted knapweed flower.
It's Cypho Season! The Whitehall Project is soon going to start collecting spotted knapweed root boring weevils (Cyphocleonus achates). These weevils are starting to emerge from the roots as collectable adults. This is a bit earlier than usual because of the hot weather we have been having.
Spotted knapweed is a short-lived perennial plant with a tap root. If you hand pull it and get most of the root you will kill it. Wear gloves and a long-sleeved shirt when pulling knapweed. Always bag and dispose of the plant after you pull it. Pull your share on every outing! The plant first grows a basal...
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