Efficacy of Host Genetic Resistance and Fungicide for Managing <i>Cercospora janseana</i> in Rice at Colt, AR, 2024
In the state of Arkansas, U.S.A., rice ( Oryza sativa) yield has been affected by a disease caused by the fungus Cercospora janseana. Previously considered to have low impact, its resurgence has led to noticeable yield losses. Moreover, symptoms have been observed on different plant structures. This report evaluates the use of host genetic resistance and the fungicide Tilt at different application timings to control Cercospora in rice. The experiment was conducted in the 2024 growing season in Colt, AR, using three cultivars recommended for the region. The use of the fungicide propiconazole at different timings during the boot stage in cultivars PVL03, CLL19, and RT7521FP allowed for inferences about the integration of host resistance and fungicide application. The results of this study provide important insights into the understanding and effective management of C. janseana in rice.
Authors
- Flávia Barbosa Silva Botelho (ORCID: https://orcid.org/0000-0002-1675-0944)
- Rodrigo Pedrozo (ORCID: https://orcid.org/0000-0002-1199-9265)
- J. T. Hardke (ORCID: https://orcid.org/0000-0002-4392-6597)
- Jocilene dos Santos Pereira (ORCID: https://orcid.org/0000-0002-3784-7315)
- Samuel de Paula (ORCID: https://orcid.org/0000-0001-9095-4032)
- Camila Primieri Nicolli (ORCID: https://orcid.org/0000-0001-8230-390X)
Institutions
- Universidade Federal de Lavras (BR)
- University of Arkansas System (US)
- Dale Bumpers National Rice Research Center (US)
Publication Details
- Journal
- Plant Health Progress
- Published
- 2025-11-21
- DOI
- https://doi.org/10.1094/php-08-25-0215-pdmr
- Primary Topic
- Plant Disease Resistance and Genetics
- Type
- article
- Field-Weighted Citation Impact
- 0.00