Woodward, J.E. and Brenneman, T.B. and Kemerait Jr., R.C. and et al, . (2014) On-Farm Evaluations of Reduced Input Fungicide Programs in Peanut Fields with Low, Moderate, or High Levels of Disease Risk. Peanut Science, 41 (1). pp. 50-57.
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Abstract
In 2003, 2004, and 2005 standard and reduced input fungicide programs were evaluated throughout the peanut production region of Georgia for control of early leaf spot (Cercospora arachidicola), late leaf spot (Cercosporidium personatum), and southern stem rot (Sclerotium rolfsii). Disease risk was determined for each field based on the cultural practices implemented and ranged from low to high. Six to eight fungicide applications were made in the standard programs, versus three to six applications in reduced programs. Leaf spot ratings were higher for the reduced programs in five of the fourteen trials with substantial defoliation occurring in one trial. Overall, southern stem rot control for the reduced programs was equal to or better than that for the standard program, which could be attributed to the differences in fungicide selection or timing. Pod yields for the reduced programs were equal to or greater than the standard programs in all but one trial. Net returns were higher for the reduced programs in half of the trials; however, the reduced program resulted in lower net returns in one trial in 2004. Our results indicate that reduced input fungicide programs can be used to adequately manage fungal diseases of peanut without compromising yield or profitability, and that the use of cultivars with moderate levels of disease resistance may enhance disease control
| Item Type: | Article |
|---|---|
| Additional Information: | This research was funded in part by Georgia peanut growers through grants from the Georgia Agricultural Commodity Commission for Peanuts. We thank Lewis Mullis, Jimmy Mixon and Pat Hilton for technical support. |
| Uncontrolled Keywords: | Arachis hypogaea L., integrated disease management, partial resistance, fungal disease risk, risk index, leaf spot, southern blight, Bravo Ultrex, Tilt, Headline, Abound, Folicur, Artisan |
| Author Affiliation: | Texas A&M AgriLIFE Extension Service, Lubbock, TX 79403, and Dept. of Plant and Soil Science, Texas Tech University, Lubbock TX 79409 |
| Subjects: | Plant Protection |
| Divisions: | Groundnut |
| Depositing User: | Mr B Krishnamurthy |
| Date Deposited: | 09 Jul 2014 09:09 |
| Last Modified: | 09 Jul 2014 09:09 |
| Official URL: | http://dx.doi.org/10.3146/PS11-23R2.1 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/13293 |
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