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By Karen Laitala
Powell County Weeds Coordinator 

Spotted knapweed battles against spring weather and treatments

 

April 16, 2020

Karen Laitala

Spotted knapweed rosettes emerging at the base of last year's seed heads.

The past few weeks I have been making a concerted effort to take daily walks on the ranch where I live. Last week the snowy path I wandered gave way to a spring melt off event. By mid-week I sighted my first wildflower blossoms. Yet even before the snow cleared, I had begun to see spotted knapweed rosettes emerging at the base of last year's seed heads as well as scattered seedlings.

With temperatures reaching the mid to upper 60's, I started to experience an increase in questions about weed management projects and methodology as well as a request to borrow spray equipment. As predicted, t...



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