<?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>2007-0934</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias agrícolas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Cienc. Agríc]]></abbrev-journal-title>
<issn>2007-0934</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-09342016000100133</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Evaluar los enemigos naturales de Leucaena Psyllid y Onion Thrips en los procesos de cosecha en diferentes genotipos de Leucaena]]></article-title>
<article-title xml:lang="en"><![CDATA[Survey the natural enemies of Leucaena Psyllid and Onion Thrips on the harvest processes in different Leucaena genotypes]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ahmed]]></surname>
<given-names><![CDATA[Ahmed M. M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Solorio Sánchez]]></surname>
<given-names><![CDATA[Francisco J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez y Avilés]]></surname>
<given-names><![CDATA[Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Al-Zyoud]]></surname>
<given-names><![CDATA[F. A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Yucatán  ]]></institution>
<addr-line><![CDATA[Mérida Yucatán]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Assiut University  ]]></institution>
<addr-line><![CDATA[Assiut ]]></addr-line>
<country>Egypt</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Mu&#8217;tah University  ]]></institution>
<addr-line><![CDATA[Karak ]]></addr-line>
<country>Jordan</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>02</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>02</month>
<year>2016</year>
</pub-date>
<volume>7</volume>
<numero>1</numero>
<fpage>133</fpage>
<lpage>145</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342016000100133&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342016000100133&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342016000100133&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El estudio se llevó a cabo en 2013 y 2014, en Xmatkuil, Mérida, Yucatán, México a la encuesta enemigos naturales y sus efectos sobre la dinámica poblacional de Leucaena leucocephala (Lam.) de plagas Wit: Leucaena Psílidos, Heteropsylla cubana Crawford (1914) (Homoptera: Psyllidae) y cebolla trips, Thrips tabaci Lindeman, 1889 (Thysanoptera: Thripidae) en cuatro genotipos de Leucaena: Cunningham, K636, Nativa y KX2. Se recogieron las hojas juveniles, examinaron y cuenta del enemigo natural, se correlacionaron con cada uno de los números de plagas. Nueve depredadores relacionados con 5 órdenes, y uno parasitoide controlan las poblaciones de ambas plagas. En la primera temporada Nativa tuvo las mayores densidades de Psyllid, y Cunningham para Thrips. En la segunda temporada, Nativa para ambas plagas. Los números de menos registran en KX2 para ambas plagas. El coeficiente de correlación (r) fue más fuerte entre los enemigos naturales y H. cubana que T. tabaci. En la primera temporada se produjeron tres picos del psílido, dos antes de la primera cosecha en mayo y junio y una después en diciembre. De lo contrario, cuatro picos de trips se registraron en Cunningham, Nativa y K636 durante mayo a agosto y sólo dos ocurrieron en KX2 en mayo y junio. En la segunda temporada de la mayor población de plagas se registró en Nativa, y la más baja se encontraban en KX2 para ambas plagas (r) fue negativa entre trips y enemigos naturales. Psyllid mostró dos picos en febrero y abril, y dos para los trips en abril y junio.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The study was conducted in 2013 and 2014, at Xmatkuil Merida, Yucatan, Mexico to survey natural enemies and their effects on the population dynamics of Leucaena leucocephala (Lam.) de Wit pests: Leucaena Psyllids, Heteropsylla cubana, Crawford (1914) (Homoptera: Psyllidae) and Onion Thrips, Thrips tabaci, Lindeman (1889) (Thysanoptera: Thripidae) on four Leucaena genotypes: Cunningham, K636, Nativa and KX2. The juvenile leaves were collected, examined and the natural enemy&#8217;s counts were correlated with each pest numbers. Nine predators related to 5 orders, and one parasitoid controlled the populations of both pests. In the first season Nativa had the largest densities of Psyllid, and Cunningham for Thrips. In the second season, Nativa for both pests. The least numbers recorded in KX2 for both pests. The coefficient of correlation (r) was stronger between natural enemies and H. cubana than T. tabaci. In the first season three peaks of Psyllid were occurred, two before the first harvest during May and June and one after at December. Otherwise, four peaks of Thrips were recorded on Cunningham, Nativa, and K636 during May to Aug. and only two occurred on KX2 at May and June. In the second season the largest population of pests was recorded in Nativa, and the lowest were in KX2 for both pests (r) was negative between Thrips and natural enemies. Psyllid showed two peaks in February and April, and two for Thrips in April and June.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[control biológico]]></kwd>
<kwd lng="es"><![CDATA[dinámica de Leucaena plagas]]></kwd>
<kwd lng="es"><![CDATA[Leucaena psílido]]></kwd>
<kwd lng="es"><![CDATA[trips de la cebolla]]></kwd>
<kwd lng="en"><![CDATA[biological control]]></kwd>
<kwd lng="en"><![CDATA[Leucaena Psyllid]]></kwd>
<kwd lng="en"><![CDATA[Leucaena pest&#8217;s dynamics]]></kwd>
<kwd lng="en"><![CDATA[onion thrips]]></kwd>
</kwd-group>
</article-meta>
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