<?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>0120-0488</journal-id>
<journal-title><![CDATA[Revista Colombiana de Entomología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Colomb. Entomol.]]></abbrev-journal-title>
<issn>0120-0488</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Colombiana de Entomología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-04882003000200015</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Comportamiento de búsqueda de Amitus fuscipennis (Hymenoptera: Platygasteridae): Tiempo de permanencia en la planta hospedera y actividad de búsqueda]]></article-title>
<article-title xml:lang="en"><![CDATA[Searching behaviour of Amitus fuscipennis: Residence time and walking activity]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[MANZANO]]></surname>
<given-names><![CDATA[MARÍA DEL ROSARIO]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[VAN LENTEREN]]></surname>
<given-names><![CDATA[JOOP C]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[CARDONA M]]></surname>
<given-names><![CDATA[CÉSAR]]></given-names>
</name>
<xref ref-type="aff" rid="A03"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad del Valle Departamento de Biología ]]></institution>
<addr-line><![CDATA[Cali ]]></addr-line>
</aff>
<aff id="A02">
<institution><![CDATA[,Wageningen University Laboratory of Entomology ]]></institution>
<addr-line><![CDATA[Wageningen ]]></addr-line>
<country>Holanda</country>
</aff>
<aff id="A03">
<institution><![CDATA[,CIAT  ]]></institution>
<addr-line><![CDATA[Cali ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2003</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2003</year>
</pub-date>
<volume>29</volume>
<numero>2</numero>
<fpage>221</fpage>
<lpage>226</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-04882003000200015&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-04882003000200015&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-04882003000200015&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Conocer el comportamiento de búsqueda de sus hospederos por parte de los parasitoides es un paso esencial para estimar la eficacia de estos agentes de control biológico y poder desarrollar estrategias para su liberación en el cultivo. En el presente trabajo se estudió el comportamiento de búsqueda de ninfas de Trialeurodes uaporariorum por parte del parasitoide A. fuscipennis en plantas de frijol en condiciones de laboratorio. Se determinó el tiempo de residencia del parasitoide y su actividad de búsqueda (%) en plantas asperjadas y no asperjadas con un fungicida sulfurado e infestadas o no con ninfas de T. vaporariorum. El tiempo de permanencia del parasitoide y su actividad de búsqueda en las plantas infestadas fue mayor que en plantas no infestadas o asperjadas. El tiempo de permanencia del parasitoide se prolongó por dos eventos: encuentros con hospederos no parasitarios y toma de alimento de la planta. Los resultados sugieren que: 1) El fungicida sulfurado perturbó al parasitoide haciendo que abandonara más rápidamente la planta. Si A fuscipennis es utilizado en un programa de Manejo Integrado de Plagas (MIP) para mosca blanca, se debe tener cuidado de que su liberación o miqración al cultivo no ocurra inmediatamente después de la aplicación de un fungicida sulfurado; 2) A. fuscipennis, a pesar de ser un parasitoide pro-ovigénico que nace con su carga de huevos lista para ser ovipositada, necesita alimentarse de la planta hospedera posiblemente para compensar el gasto energético ocasio&#094; nado por caminar activamente en busca de sus hospederos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Knowledge about the foraging behaviour of parasitoids is essential to estímate the efficiency of biological control agents and to develop parasitoid reléase strategies. In this paper the behaviour of A fuscipennis when searching for TYialeurodes vaporariomm nymphs on bean plants was studied under laboratory conditions. The residence time and searching behaviour of A. fuscipennis were determined on plants sprayed or unsprayed with a sulphur-based fungicide, and infested or uninfested with nymphs of T. vaporariorum. The residence time and walking activity of A. fuscipennis on infested, unsprayed plants were higher than that of uninfested or sprayed plants. The residence time of A. fuscipennis was prolonged by both, encounters with unparasitized hosts and by feeding from the plant. Results suqqest that: 1) residence time was reduced on fungicide sprayed plants, indicating that the fungicide disturbed A fuscipennis, when A. fuscipennis is used within an Integrated Pest Managment (IPM) system for A. fuscipennis, special care must be taken on that the reléase and migration of the parasite to the crop does not happen immediately after a sulfurated fungicide has been applied. 2) Despite being a pro-ovigenic parasitoid that emerges with their life-time egg load ready to oviposit, A. fuscipennis needs to feed on the plant probably because searching for hosts demands extra energy.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Alimentación]]></kwd>
<kwd lng="es"><![CDATA[Estipela]]></kwd>
<kwd lng="es"><![CDATA[Fungicida]]></kwd>
<kwd lng="es"><![CDATA[MIP Parasitoide]]></kwd>
<kwd lng="es"><![CDATA[Phaseolus uulgaris]]></kwd>
<kwd lng="es"><![CDATA[Trialeurodes vaporariomm]]></kwd>
<kwd lng="en"><![CDATA[Feeding]]></kwd>
<kwd lng="en"><![CDATA[Fungicide]]></kwd>
<kwd lng="en"><![CDATA[IPM]]></kwd>
<kwd lng="en"><![CDATA[Parasitoid]]></kwd>
<kwd lng="en"><![CDATA[Phaseolus vulgaris]]></kwd>
<kwd lng="en"><![CDATA[Stipel]]></kwd>
<kwd lng="en"><![CDATA[Trialeurodes vaporariomm]]></kwd>
</kwd-group>
</article-meta>
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