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Interactive Effects of Fungicide, Application Timing and Spray Volume on Peanut Diseases and Yield

J. Augusto and T. B. Brenneman

April 2012

Research

Fungicide penetration of the peanut canopy to target soilborne pathogens is difficult due to the dense foliage present when mid- to late-season applications are made. To assess the effect of application timing and volume on leaf spot and stem rot control as well as peanut yield, pyraclostrobin or chlorothalonil, a systemic and a contact fungicide, respectively, were applied four times on cv. Georgia Green during the day (on unfolded leaves) or at night (on folded leaves) at three application rates.

doi:10.1094/PHP-2010-0420-01-RS

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