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      Mixture of clove (Sysygium aromaticum) and garlic (Allium sativum) alcoholic extracts in the control of black Sigatoka in ‵Macho′ plantain Translated title: Mezcla de extracto alcohólico de clavo (Sysygium aromaticum) y ajo (Allium sativum) en el control de la Sigatoka negra en plátano ‵Macho′

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          Abstract

          Abstract The incidence and severity of the Black Sigatoka (BS) was assessed in plantain plants “Macho” variety, sprayed with a mixture of alcoholic extracts of clove (36 µgclove mL-1) and garlic (150 µggarlic mL-1) under field conditions. Three treatments were evaluated: foliar application every 7 days (T1), every 14 days (T2) and without extracts or control (T3). Initially, the experimental plants were 3 months-old and the experiment concluded 238 days later. Every 14 days the incidence and severity of BS, the total number of leaves, the youngest leaf without symptoms and the time to flowering were measured. In relation to the plants of T3, the weighted average incidence and severity of BS were lower by 20.5 and 25.3% for T1 and 11.4 and 22.6% for T2, respectively. The average of total leaves was, 9.3, 8.8 and 8.5 and the youngest leaf with disease symptoms were 7.2, 6.4 and 5.6 for T1, T2 and T3, respectively. The days to flowering after the beginning of the experiment were 140 for T1 and 182 for T2. The results show the potential of using the alcoholic extracts of garlic and clove as an alternative for the control of the BS.

          Translated abstract

          Resumen Bajo condiciones de campo se evaluó la incidencia y severidad de Sigatoka Negra (SN) en plátano ‵Macho′, asperjado con la mezcla del extracto alcohólico de clavo (36 µgclavo mL-1) - ajo (150 µgajo mL-1). Tres tratamientos fueron establecidos: aplicación cada 7 días (T1), cada 14 días (T2) y sin mezcla o control (T3). Las plantas utilizadas tenían 3 meses de edad y el trabajo concluyó, posteriormente, a los 238 días. La incidencia y severidad de la SN, el número total de hojas, la hoja más joven sin SN y el tiempo a florecimiento se determinaron cada 14 día. En relación al T3, las plantas del T1 tuvieron 20.5 y 25.3% menos incidencia y severidad de SN y, las del T2, 11.4 y 22.6% menos. El número de hojas totales fue 9.3, 8.8 y 8.5 y la hoja más joven con SN fue 7.2, 6.4 y 5.6 para T1, T2 y T3, respectivamente. Los días a florecimiento fueron 140 para T1 y 182 para T2. Los resultados muestran el potencial de la mezcla de los extractos alcohólicos de ajo y clavo como alternativa para el control de la SN.

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          Most cited references17

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          Black Sigatoka: An Increasing Threat to Banana Cultivation

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            Soil and Water Pollution in a Banana Production Region in Tropical Mexico

            The effects of abundant Mancozeb (Mn, Zn—bisdithiocarbamate) applications (2.5 kg ha−1week−1 for 10 years) on soil and surface-, subsurface- and groundwater pollution were monitored in a banana production region of tropical Mexico. In soils, severe manganese accumulation was observed, wheras the main metabolite ethylenethiourea was near the detection limit. Surface and subsurface water was highly polluted with ethylenethiourea, the main metabolite of Mancozeb (22.5 and 4.3 μg L−1, respectively), but not with manganese. In deep ground water, no ethylenethiourea was detected. The level of pollution in the region presents a worrisome risk for aquatic life and for human health.
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              Efecto de la Sigatoka negra (Mycosphaerella fijiensis) sobre la fotosíntesis y transpiración foliar del banano (Musa sp. AAA, cv. Valery)

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                Author and article information

                Journal
                rmfi
                Revista mexicana de fitopatología
                Rev. mex. fitopatol
                Sociedad Mexicana de Fitopatología A.C. (Texcoco, Estado de México, Mexico )
                0185-3309
                2007-8080
                2023
                : 41
                : 1
                : 82-92
                Affiliations
                [1] Tapachula orgnameUniversidad Autónoma de Chiapas orgdiv1Instituto de Biociencias Mexico
                Article
                S0185-33092023000100082 S0185-3309(23)04100100082
                10.18781/r.mex.fit.2207-3
                a167566f-a9b8-49db-89dc-849128ac8b8f

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 04 July 2022
                : 14 December 2022
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 17, Pages: 11
                Product

                SciELO Mexico

                Categories
                Phytopathological notes

                severity,plant extracts,Pseudocercospora fijiensis,incidencia,severidad,extractos de plantas,incidence

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