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How a devastating grape pest is reshaping vineyards across Colorado’s Western Slope

  • Written by Charlotte Oliver, Extension Associate Professor, Colorado State University
How a devastating grape pest is reshaping vineyards across Colorado’s Western SlopeColorado's $3.9 billion wine industry is threatened by a tiny aphid. Courtesy of Charlotte Oliver

Grape phylloxera, or Daktulosphaira vitifoliae, is an aphidlike insect that attacks grapevines with devastating effects. In Colorado, where wine is an estimated US$3.9 billion dollar industry, phylloxera poses a significant threat.

In 2015, several...

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