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Giant ragweed and herbicide resistance

It’s the time of year for post emergent herbicide applications which means giant ragweed that are resistant to herbicides can now be spotted.

Purdue University professor of weed science Bill Johnson says like many other weeds – glyphosate resistant giant ragweed can be a giant yield robber. Johnson and his staff at Purdue are looking at ways to help farmers better manage that weed and not suffer yield loss.

AUDIO: Bill Johnson, Purdue University (3:00mp3)

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