<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0185-3309</journal-id>
<journal-title><![CDATA[Revista mexicana de fitopatología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. fitopatol]]></abbrev-journal-title>
<issn>0185-3309</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Fitopatología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0185-33092023000300460</article-id>
<article-id pub-id-type="doi">10.18781/r.mex.fit.2302-3</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Pathogenicity, virulence and in vitro sensitivity of Elsinoe perseae (= Sphaceloma perseae) isolates to different fungicides]]></article-title>
<article-title xml:lang="es"><![CDATA[Patogenicidad, virulencia y sensibilidad in vitro de aislados de Elsinoe perseae (= Sphaceloma perseae) a diferentes fungicidas]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Esquivel-Miguel]]></surname>
<given-names><![CDATA[Edna]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morales-García]]></surname>
<given-names><![CDATA[José Luciano]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pedraza-Santos]]></surname>
<given-names><![CDATA[Martha Elena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chávez-Bárcenas]]></surname>
<given-names><![CDATA[Ana Tztzqui]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Morales]]></surname>
<given-names><![CDATA[Soledad]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pineda-Guillermo]]></surname>
<given-names><![CDATA[Samuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Michoacana de San Nicolás de Hidalgo  ]]></institution>
<addr-line><![CDATA[Uruapan Michoacán]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C  ]]></institution>
<addr-line><![CDATA[Zapopan Jalisco]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Michoacana de San Nicolás de Hidalgo  ]]></institution>
<addr-line><![CDATA[Tarímbaro Michoacán]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<volume>41</volume>
<numero>3</numero>
<fpage>460</fpage>
<lpage>478</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0185-33092023000300460&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0185-33092023000300460&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0185-33092023000300460&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract. Elsinoe perseae (= Sphaceloma perseae) is the causal agent of the Mancha purpura or scab in avocado (Persea americana). In this study, the pathogenicity and virulence of E. perseae isolates from different agroecological producing areas of Michoacán, Mexico will be reduced. For this, nursery plants with avocado fruits of Flor de María and Méndez varieties were used. On the other hand, the in vitro sensitivity of chemical fungicides (azoxystrobin, thiabendazole, pyraclostrobin, cyprodinil + fludioxonil and azoxystrobin + propiconazole) and authorized for use in orchards with organic management (copper sulfate, copper gluconate, copper oxychloride and the plant extract Larrea tridentata). The observed symptoms of Mancha purpura in the inoculated fruits were corroborated with those described for E. perseae in avocado. Inoculated fruits Flor de María variety shows the highest susceptibility to the pathogen. The isolates of E. perseae presented different degrees of virulence. The isolates showed different in vitro sensitivity values &#8203;&#8203;to the fungicides evaluated in the experiment. The pathogen showed the most sensitivity in vitro to chemical fungicides: thiabendazole and azoxystrobin + propiconazole (100% inhibition), and to those authorized in orchards with organic management: L. tridentata and copper oxychloride (on average 58% inhibition).]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen. Elsinoe perseae (= Sphaceloma perseae) es el agente causal de la enfermedad conocida como mancha púrpura o roña del aguacate (Persea americana). En este estudio se determinó la patogenicidad y virulencia de aislados de E. perseae procedentes de distintas áreas agroecológicas productoras de Michoacán, México. Se utilizaron plantas de vivero con frutos de aguacate de las variedades Flor de María y Méndez. Además, se evaluó la sensibilidad de los aislados in vitro a fungicidas químicos (azoxystrobin, tiabendazol, pyraclostrobin, cyprodinil+fludioxonil y azoxystrobin + propiconazol) y autorizados para su uso en huertos con manejo orgánico (sulfato de cobre, gluconato de cobre, oxicloruro de cobre y el extracto vegetal Larrea tridentata). Los síntomas de mancha púrpura observados en los frutos inoculados coincidieron con los descritos de E. perseae en aguacate. Las plantas variedad Flor de María inoculadas mostraron la mayor susceptibilidad al patógeno comparada con Méndez. Los aislados de E. perseae presentaron diferentes grados de virulencia. Los aislados seleccionados mostraron diferentes valores de sensibilidad in vitro a los fungicidas evaluados en la experimentación. El patógeno mostró mayor sensibilidad in vitro a los fungicidas químicos: tiabendazol y azoxystrobin + propiconazol (100% de inhibición), y a los autorizados en huertos con manejo orgánico: L. tridentata y oxicloruro de cobre (en promedio un 58% de inhibición).]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Mancha purpura]]></kwd>
<kwd lng="en"><![CDATA[susceptibility]]></kwd>
<kwd lng="en"><![CDATA[sensitivity]]></kwd>
<kwd lng="en"><![CDATA[Persea americana]]></kwd>
<kwd lng="es"><![CDATA[Mancha púrpura]]></kwd>
<kwd lng="es"><![CDATA[susceptibilidad]]></kwd>
<kwd lng="es"><![CDATA[sensibilidad]]></kwd>
<kwd lng="es"><![CDATA[Persea americana]]></kwd>
</kwd-group>
</article-meta>
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