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Eficacia de seis fungicidas en el control de Mycosphaerella citri Whiteside en naranja, Var. 'Valencia' en Tlayecac, Morelos, México.
- Source :
-
Revista Centro Agricola . jul-sep2017, Vol. 44 Issue 3, p71-79. 9p. - Publication Year :
- 2017
-
Abstract
- The efficacy of six fungicides for the control greasy spot (Mycosphaerella citri Whiteside) in orange (Citrus sinensis (L.) Osbeck) cv. 'Valencia' was evaluated in plots with a randomized block design and six treatments: (Azoxystrobin + Difenoconazole), Flutriafol, Difenoconazole, Benomyl, Copper Oxychloride, Trifloxyistrobin and a control. Three spraying, were made, every fifteen days. During the assay, the incidence, severity and efficacy of the diseases were evaluated. In addition, area under the disease-progress curve (AUDPC) and disease-progress curve relative in percent (AUDPCr) were calculated. The data were processed through a simple ANOVA. As results, the incidence remained unchanged up to 21 days after treatment (DAT), with low values between 1,3 and 5 %, which increased from 28 (DAT) (58-96 %). The initially severity was low (0,1-3 %) and was increased up to 32 %. The efficacy 7 (DAT) had the highest percentages with Benomyl and Trifloxyistrobin (87,5 %) and Difenoconazole (75 %). While at 14 (DAT) Difenoconazole and Azoxydifem reached 87,5 %. All fungicides reduced the area under the disease-progress curve (AUDPC) in relation to the control and in correspondence the lowest cumulative relative percentages of disease-progress curve relative in percent (AUDPCr) were obtained by Flutriafol, Benomyl and Trifloxystrobin (8.4, 8.6 and 8.7 %), although without statistical differences with another fungicide, only with the control (11.2 %). [ABSTRACT FROM AUTHOR]
Details
- Language :
- Spanish
- ISSN :
- 02535785
- Volume :
- 44
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Revista Centro Agricola
- Publication Type :
- Academic Journal
- Accession number :
- 124588230