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Evaluating Headline Fungicide on Alfalfa Production and Sensitivity of Pathogens to Pyraclostrobin

D. A. Samac, B. Halfman, B. Jensen, F. Brietenbach, L. Behnken, J. Willbur, D. Undersander, G. Blonde, and J. F. S. Lamb

September 2013


Headline fungicide was recently registered for management of foliar diseases on alfalfa. The effect of disease control on yield, forage quality, and potential return on investment for fungicide application was determined for field experiments conducted at five three Wisconsin and two Minnesota locations in 2012. The results indicate that fungicide application can increase yields under higher disease pressure and increase crude protein when the crop is harvested at later developmental stages.


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