Barnes, J.S. and Csinos, A.S. and Hook, J.E. (1990) Effects of Fungicides, Cultivars, Irrigation, and Environment on Rhizoctonia Limb Rot of Peanut. Plant Disease, 74 (9). pp. 671-676.
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Abstract
Diniconazole, flutolanil, and PCNB + ethoprop were evaluated in field tests in Plains and Tifton, Georgia, for control of Rhizoctonia limb rot of peanut caused by Rhizoctonia solani AG-4. Diniconazole applications at 60 + 90 days after planting (DAP) or 60 + 90 + 120 DAP were generally the best treatments for reducing incidence of limb rot in Plains. Based on a visual rating of incidence of Rhizoctonia limb rot after inverting, applications of diniconazole at 60 + 90 DAP significantly reduced disease incidence over applications at 90 + 120 DAP in Florunner, Pronto, and late-planted Florunner peanuts. Flutolanil reduced Rhizoctonia limb rot but was less effective than the two best diniconazole treatments. PCNB + ethoprop generally did not reduce incidence or severity when compared to the control. In Tifton, application of diniconazole every 14 days at 0.28 kg a.i./ha provided the greatest reduction in disease incidence in Florunner and New Mexico Valencia A (NMVA) cultivars. Pronto had significantly less Rhizoctonia limb rot than Florunner, and Florunner had less than NMVA. Irrigation increased disease incidence by as much as 109% over plots that received no irrigation
| Item Type: | Article |
|---|---|
| Additional Information: | SNNigam Collection |
| Uncontrolled Keywords: | sterol biosynthesis-inhibiting fungicides |
| Author Affiliation: | Department of Plant Pathology, University of Georgia, Coastal Plain Experiment Station, Tifton 31793 |
| Subjects: | Plant Production Plant Protection |
| Divisions: | Groundnut |
| Depositing User: | Mr B Krishnamurthy |
| Date Deposited: | 19 Mar 2013 10:32 |
| Last Modified: | 01 Apr 2013 04:52 |
| Official URL: | http://dx.doi.org/10.1094/PD-74-0671 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/9883 |
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