The effect of diatomaceous earth of different origin, temperature and relative humidity against adults of rice weevil (Sitophilus oryzae [L.], Coleoptera, Curculionidae) in stored wheat
Identifieur interne : 000C09 ( Istex/Corpus ); précédent : 000C08; suivant : 000C10The effect of diatomaceous earth of different origin, temperature and relative humidity against adults of rice weevil (Sitophilus oryzae [L.], Coleoptera, Curculionidae) in stored wheat
Auteurs : Helena Rojht ; Christos Athanassiou ; Bill Vayias ; Nickolas Kavallieratos ; Željko Tomanovi ; Matej Vidrih ; Katarina Kos ; Stanislav TrdanSource :
- Acta agriculturae Slovenica [ 1581-9175 ] ; 2010-03-01.
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- KwdEn :
Abstract
Laboratory experiments were carried out to evaluate the impact of diatomaceous earth (DE) samples of different origin with their insecticidal properties to control one of the most important primary pest in stored grain. We tested the efficacy of three local DE, from Serbia, Greece and Slovenia, and commercial formulation SilicoSec against the rice weevil, Sitophilus oryzae, adults in stored wheat. The experiments were carried out at three temperatures (20, 25 and 30 °C) and two relative humidity (RH) levels (55 and 75 %). Mortality of pest was counted 7, 14 and 21 days after exposure (DAT) at the following DE dose rates: 100, 300, 500 and 900 ppm. The mortality of adults normally increased with increasing dose rates and DAT. In all samples the mortality of rice weevil adults (dose rate 900 ppm, 21 DAT) was above 90 %, except at Slovenian DE (at 20 °C and 55 % RH) and Greek DE (at 25 °C and 75 % RH), when the mortality was 85.3 and 67.6 %, respectively. With 100 % mortality (14 DAT and at 900 ppm) the most effective was SilicoSec. Slovenian DE was more effective at 55 % RH than at 75 % RH (7 DAT at all temperatures).
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DOI: 10.2478/v10014-010-0002-4
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ISTEX:1DED22CF1147C6DFDF861C096AD2C56562A71C83Le document en format XML
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Vayias</name><affiliation><mods:affiliation>ibid</mods:affiliation></affiliation></author><author><name sortKey="Kavallieratos, Nickolas" sort="Kavallieratos, Nickolas" uniqKey="Kavallieratos N" first="Nickolas" last="Kavallieratos">Nickolas Kavallieratos</name><affiliation><mods:affiliation>Laboratory of Agricultural Entomology, Dept. of Entomology and Agricultural Zoology, Benaki Phytopathological Institute, 8 Stefanou Delta Street, 14561 Kifissia, Attica, Greece</mods:affiliation></affiliation></author><author><name sortKey="Tomanovi, Zeljko" sort="Tomanovi, Zeljko" uniqKey="Tomanovi Z" first="Željko" last="Tomanovi">Željko Tomanovi</name><affiliation><mods:affiliation>Faculty of Biology, Dept. of Zoology, University of Belgrade, Studentski trg 16, SER-11000 Belgrade, Serbia</mods:affiliation></affiliation></author><author><name sortKey="Vidrih, Matej" sort="Vidrih, Matej" uniqKey="Vidrih M" first="Matej" last="Vidrih">Matej Vidrih</name><affiliation><mods:affiliation>Jamnikarjeva 101, SI-1111 Ljubljana</mods:affiliation></affiliation></author><author><name sortKey="Kos, Katarina" sort="Kos, Katarina" uniqKey="Kos K" first="Katarina" last="Kos">Katarina Kos</name><affiliation><mods:affiliation>ibid</mods:affiliation></affiliation></author><author><name sortKey="Trdan, Stanislav" sort="Trdan, Stanislav" uniqKey="Trdan S" first="Stanislav" last="Trdan">Stanislav Trdan</name><affiliation><mods:affiliation>ibid</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Acta agriculturae Slovenica</title><idno type="ISSN">1581-9175</idno><idno type="eISSN">1854-1941</idno><imprint><publisher>Versita</publisher><date type="published" when="2010-03-01">2010-03-01</date><biblScope unit="volume">95</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="13">13</biblScope><biblScope unit="page" to="20">20</biblScope></imprint><idno type="ISSN">1581-9175</idno></series><idno 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We tested the efficacy of three local DE, from Serbia, Greece and Slovenia, and commercial formulation SilicoSec against the rice weevil, Sitophilus oryzae, adults in stored wheat. The experiments were carried out at three temperatures (20, 25 and 30 °C) and two relative humidity (RH) levels (55 and 75 %). Mortality of pest was counted 7, 14 and 21 days after exposure (DAT) at the following DE dose rates: 100, 300, 500 and 900 ppm. The mortality of adults normally increased with increasing dose rates and DAT. In all samples the mortality of rice weevil adults (dose rate 900 ppm, 21 DAT) was above 90 %, except at Slovenian DE (at 20 °C and 55 % RH) and Greek DE (at 25 °C and 75 % RH), when the mortality was 85.3 and 67.6 %, respectively. With 100 % mortality (14 DAT and at 900 ppm) the most effective was SilicoSec. Slovenian DE was more effective at 55 % RH than at 75 % RH (7 DAT at all temperatures).</div></front></TEI><istex><corpusName>degruyter-journals</corpusName><author><json:item><name>Helena Rojht</name><affiliations><json:string>Jamnikarjeva 101, SI-1111 Ljubljana</json:string></affiliations></json:item><json:item><name>Christos Athanassiou</name><affiliations><json:string>Dept. of Plant Science, Agricultural University of Athens, 75 Iera Odos, 11855 Athens, Attica, Greece</json:string></affiliations></json:item><json:item><name>Bill Vayias</name><affiliations><json:string>ibid</json:string></affiliations></json:item><json:item><name>Nickolas Kavallieratos</name><affiliations><json:string>Laboratory of Agricultural Entomology, Dept. of Entomology and Agricultural Zoology, Benaki Phytopathological Institute, 8 Stefanou Delta Street, 14561 Kifissia, Attica, Greece</json:string></affiliations></json:item><json:item><name>Željko Tomanović</name><affiliations><json:string>Faculty of Biology, Dept. of Zoology, University of Belgrade, Studentski trg 16, SER-11000 Belgrade, Serbia</json:string></affiliations></json:item><json:item><name>Matej Vidrih</name><affiliations><json:string>Jamnikarjeva 101, SI-1111 Ljubljana</json:string></affiliations></json:item><json:item><name>Katarina Kos</name><affiliations><json:string>ibid</json:string></affiliations></json:item><json:item><name>Stanislav Trdan</name><affiliations><json:string>ibid</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>diatomaceous earth</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>origin</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>stored wheat</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>temperature</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>relative humidity</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Sitophilus oryzae</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>diatomejska zemlja</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>izvor</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>pšenica</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>temperatura</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>relativna vlaga</value></json:item></subject><articleId><json:string>v10014-010-0002-4</json:string></articleId><language><json:string>eng</json:string></language><originalGenre><json:string>research-article</json:string></originalGenre><abstract>Laboratory experiments were carried out to evaluate the impact of diatomaceous earth (DE) samples of different origin with their insecticidal properties to control one of the most important primary pest in stored grain. We tested the efficacy of three local DE, from Serbia, Greece and Slovenia, and commercial formulation SilicoSec against the rice weevil, Sitophilus oryzae, adults in stored wheat. The experiments were carried out at three temperatures (20, 25 and 30 °C) and two relative humidity (RH) levels (55 and 75 %). Mortality of pest was counted 7, 14 and 21 days after exposure (DAT) at the following DE dose rates: 100, 300, 500 and 900 ppm. The mortality of adults normally increased with increasing dose rates and DAT. In all samples the mortality of rice weevil adults (dose rate 900 ppm, 21 DAT) was above 90 %, except at Slovenian DE (at 20 °C and 55 % RH) and Greek DE (at 25 °C and 75 % RH), when the mortality was 85.3 and 67.6 %, respectively. With 100 % mortality (14 DAT and at 900 ppm) the most effective was SilicoSec. Slovenian DE was more effective at 55 % RH than at 75 % RH (7 DAT at all temperatures).</abstract><qualityIndicators><score>7.671</score><pdfVersion>1.4</pdfVersion><pdfPageSize>595.22 x 842 pts (A4)</pdfPageSize><refBibsNative>true</refBibsNative><keywordCount>11</keywordCount><abstractCharCount>1133</abstractCharCount><pdfWordCount>3235</pdfWordCount><pdfCharCount>20457</pdfCharCount><pdfPageCount>8</pdfPageCount><abstractWordCount>203</abstractWordCount></qualityIndicators><title>The effect of diatomaceous earth of different origin, temperature and relative humidity against adults of rice weevil (Sitophilus oryzae [L.], Coleoptera, Curculionidae) in stored 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type="first">Bill</forename><surname>Vayias</surname></persName><affiliation>ibid</affiliation></author><author xml:id="author-4"><persName><forename type="first">Nickolas</forename><surname>Kavallieratos</surname></persName><affiliation>Laboratory of Agricultural Entomology, Dept. of Entomology and Agricultural Zoology, Benaki Phytopathological Institute, 8 Stefanou Delta Street, 14561 Kifissia, Attica, Greece</affiliation></author><author xml:id="author-5"><persName><forename type="first">Željko</forename><surname>Tomanović</surname></persName><affiliation>Faculty of Biology, Dept. of Zoology, University of Belgrade, Studentski trg 16, SER-11000 Belgrade, Serbia</affiliation></author><author xml:id="author-6"><persName><forename type="first">Matej</forename><surname>Vidrih</surname></persName><affiliation>Jamnikarjeva 101, SI-1111 Ljubljana</affiliation></author><author xml:id="author-7"><persName><forename type="first">Katarina</forename><surname>Kos</surname></persName><affiliation>ibid</affiliation></author><author xml:id="author-8"><persName><forename type="first">Stanislav</forename><surname>Trdan</surname></persName><affiliation>ibid</affiliation></author></analytic><monogr><title level="j">Acta agriculturae Slovenica</title><idno type="pISSN">1581-9175</idno><idno type="eISSN">1854-1941</idno><imprint><publisher>Versita</publisher><date type="published" when="2010-03-01"></date><biblScope unit="volume">95</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="13">13</biblScope><biblScope unit="page" to="20">20</biblScope></imprint></monogr><idno type="istex">1DED22CF1147C6DFDF861C096AD2C56562A71C83</idno><idno type="DOI">10.2478/v10014-010-0002-4</idno><idno type="ArticleID">v10014-010-0002-4</idno><idno type="pdf">v10014-010-0002-4.pdf</idno></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>2010-05-31</date></creation><langUsage><language ident="en">en</language></langUsage><abstract xml:lang="en"><p>Laboratory experiments were carried out to evaluate the impact of diatomaceous earth (DE) samples of different origin with their insecticidal properties to control one of the most important primary pest in stored grain. We tested the efficacy of three local DE, from Serbia, Greece and Slovenia, and commercial formulation SilicoSec against the rice weevil, Sitophilus oryzae, adults in stored wheat. The experiments were carried out at three temperatures (20, 25 and 30 °C) and two relative humidity (RH) levels (55 and 75 %). Mortality of pest was counted 7, 14 and 21 days after exposure (DAT) at the following DE dose rates: 100, 300, 500 and 900 ppm. The mortality of adults normally increased with increasing dose rates and DAT. In all samples the mortality of rice weevil adults (dose rate 900 ppm, 21 DAT) was above 90 %, except at Slovenian DE (at 20 °C and 55 % RH) and Greek DE (at 25 °C and 75 % RH), when the mortality was 85.3 and 67.6 %, respectively. With 100 % mortality (14 DAT and at 900 ppm) the most effective was SilicoSec. Slovenian DE was more effective at 55 % RH than at 75 % RH (7 DAT at all temperatures).</p></abstract><abstract xml:lang="sl"><p>V laboratorijskih poskusih smo preučevali vpliv diatomejske zemlje (DZ) različnega izvora pri zatiranju enega od najpomembnejših primarnih škodljivcev skladiščenega žita. Ugotavljali smo učinkovitost treh lokalnih tipov DZ (srbskega, grškega in slovenskega) in komercialnega pripravka SilicoSec pri zatiranju odraslih osebkov riževega žužka (Sitophilus oryzae) v skladiščeni pšenici. Insekticidno delovanje DZ smo preučevali pri treh temperaturah (20, 25 in 30 °C), dveh vrednostih relativne vlage (55 and 75 %) in štirih (100, 300, 500 and 900 ppm) koncentracijah vsakega vzorca DZ. Smrtnost hroščev smo ugotavljali 7., 14. in 21. dan po tretiranju (DPT) in je bila največja pri najvišji koncentraciji in 21 DPT. V vseh vzorcih žita je bila smrtnost hroščev večja od 90 % pri koncentraciji 900 ppm ter 21 DPT. Izjemi sta bili slovenski in grški vzorec, ki sta vplivali na 85,3 % smrtnost pri 25 °C in 55 % vlagi ter na 67,6 % smrtnot pri 25 °C in 75 % vlagi. Najbolj učinkovit (100 % smrtnost hroščev) je bil pripravek SilicoSec 14 DPT pri koncentraciji 900 ppm. Slovenski vzorec DE je bil bolj učinkovit pri 55 kot pri 75 % vlagi (7 DPT pri vseh temperaturah).</p></abstract><textClass xml:lang="en"><keywords scheme="keyword"><list><head>Keywords</head><item><term>diatomaceous earth</term></item><item><term>origin</term></item><item><term>stored wheat</term></item><item><term>temperature</term></item><item><term>relative humidity</term></item></list></keywords></textClass><textClass xml:lang="sl"><keywords scheme="keyword"><list><head>Keywords</head><item><term>Sitophilus oryzae</term></item><item><term>diatomejska zemlja</term></item><item><term>izvor</term></item><item><term>pšenica</term></item><item><term>temperatura</term></item><item><term>relativna vlaga</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="2010-05-31">Created</change><change 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pub-type="ppub">1581-9175</issn><publisher><publisher-name>Versita</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">v10014-010-0002-4</article-id><article-id pub-id-type="doi">10.2478/v10014-010-0002-4</article-id><title-group><article-title>The effect of diatomaceous earth of different origin, temperature and relative humidity against adults of rice weevil (<italic>Sitophilus oryzae</italic> [L.], Coleoptera, Curculionidae) in stored wheat</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Rojht</surname><given-names>Helena</given-names></name><xref ref-type="aff" rid="A1"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Athanassiou</surname><given-names>Christos</given-names></name><xref ref-type="aff" rid="A2"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Vayias</surname><given-names>Bill</given-names></name><xref ref-type="aff" rid="A3"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Kavallieratos</surname><given-names>Nickolas</given-names></name><xref ref-type="aff" rid="A4"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Tomanović</surname><given-names>Željko</given-names></name><xref ref-type="aff" rid="A5"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Vidrih</surname><given-names>Matej</given-names></name><xref ref-type="aff" rid="A1"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Kos</surname><given-names>Katarina</given-names></name><xref ref-type="aff" rid="A3"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Trdan</surname><given-names>Stanislav</given-names></name><xref ref-type="aff" rid="A3"><sup>1</sup></xref></contrib><aff id="A1">Jamnikarjeva 101, SI-1111 Ljubljana<sup>1</sup></aff><aff id="A2">Dept. of Plant Science, Agricultural University of Athens, 75 Iera Odos, 11855 Athens, Attica, Greece<sup>2</sup></aff><aff id="A3">ibid<sup>3</sup></aff><aff id="A4">Laboratory of Agricultural Entomology, Dept. of Entomology and Agricultural Zoology, Benaki Phytopathological Institute, 8 Stefanou Delta Street, 14561 Kifissia, Attica, Greece<sup>4</sup></aff><aff id="A5">Faculty of Biology, Dept. of Zoology, University of Belgrade, Studentski trg 16, SER-11000 Belgrade, Serbia<sup>5</sup></aff></contrib-group><author-notes><corresp></corresp></author-notes><pub-date pub-type="ppub"><day>1</day><month>3</month><year>2010</year></pub-date><pub-date pub-type="epub"><day>31</day><month>5</month><year>2010</year></pub-date><volume>95</volume><issue>1</issue><fpage>13</fpage><lpage>20</lpage><permissions><license license-type="open-access"><license-p>This content is open access.</license-p></license></permissions><related-article related-article-type="pdf" xlink:href="v10014-010-0002-4.pdf"></related-article><abstract xml:lang="en"><title>The effect of diatomaceous earth of different origin, temperature and relative humidity against adults of rice weevil (<italic>Sitophilus oryzae</italic> [L.], Coleoptera, Curculionidae) in stored wheat</title><p>Laboratory experiments were carried out to evaluate the impact of diatomaceous earth (DE) samples of different origin with their insecticidal properties to control one of the most important primary pest in stored grain. We tested the efficacy of three local DE, from Serbia, Greece and Slovenia, and commercial formulation SilicoSec against the rice weevil, <italic>Sitophilus oryzae</italic>, adults in stored wheat. The experiments were carried out at three temperatures (20, 25 and 30 °C) and two relative humidity (RH) levels (55 and 75 %). Mortality of pest was counted 7, 14 and 21 days after exposure (DAT) at the following DE dose rates: 100, 300, 500 and 900 ppm. The mortality of adults normally increased with increasing dose rates and DAT. In all samples the mortality of rice weevil adults (dose rate 900 ppm, 21 DAT) was above 90 %, except at Slovenian DE (at 20 °C and 55 % RH) and Greek DE (at 25 °C and 75 % RH), when the mortality was 85.3 and 67.6 %, respectively. With 100 % mortality (14 DAT and at 900 ppm) the most effective was SilicoSec. Slovenian DE was more effective at 55 % RH than at 75 % RH (7 DAT at all temperatures).</p></abstract><abstract xml:lang="sl"><title>Vpliv Diatomejske Zemlje Različnega Izvora, Temperature in Relativne Vlage Pri Zatiranju Odraslih Osebkov Riževega Žužka (<italic>Sitophilus oryzae</italic> [L.], Coleoptera, Curculionidae) V Skladiščeni Pšenici</title><p>V laboratorijskih poskusih smo preučevali vpliv diatomejske zemlje (DZ) različnega izvora pri zatiranju enega od najpomembnejših primarnih škodljivcev skladiščenega žita. Ugotavljali smo učinkovitost treh lokalnih tipov DZ (srbskega, grškega in slovenskega) in komercialnega pripravka SilicoSec pri zatiranju odraslih osebkov riževega žužka (<italic>Sitophilus oryzae</italic>) v skladiščeni pšenici. Insekticidno delovanje DZ smo preučevali pri treh temperaturah (20, 25 in 30 °C), dveh vrednostih relativne vlage (55 and 75 %) in štirih (100, 300, 500 and 900 ppm) koncentracijah vsakega vzorca DZ. Smrtnost hroščev smo ugotavljali 7., 14. in 21. dan po tretiranju (DPT) in je bila največja pri najvišji koncentraciji in 21 DPT. V vseh vzorcih žita je bila smrtnost hroščev večja od 90 % pri koncentraciji 900 ppm ter 21 DPT. Izjemi sta bili slovenski in grški vzorec, ki sta vplivali na 85,3 % smrtnost pri 25 °C in 55 % vlagi ter na 67,6 % smrtnot pri 25 °C in 75 % vlagi. Najbolj učinkovit (100 % smrtnost hroščev) je bil pripravek SilicoSec 14 DPT pri koncentraciji 900 ppm. Slovenski vzorec DE je bil bolj učinkovit pri 55 kot pri 75 % vlagi (7 DPT pri vseh temperaturah).</p></abstract><kwd-group xml:lang="en"><title>Keywords</title><kwd><italic>Sitophilus oryzae</italic></kwd><kwd>diatomaceous earth</kwd><kwd>origin</kwd><kwd>stored wheat</kwd><kwd>temperature</kwd><kwd>relative humidity</kwd></kwd-group><kwd-group xml:lang="sl"><title>Keywords</title><kwd>Sitophilus oryzae</kwd><kwd>diatomejska zemlja</kwd><kwd>izvor</kwd><kwd>pšenica</kwd><kwd>temperatura</kwd><kwd>relativna vlaga</kwd></kwd-group></article-meta></front></article></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>The effect of diatomaceous earth of different origin, temperature and relative humidity against adults of rice weevil (Sitophilus oryzae [L.], Coleoptera, Curculionidae) in stored wheat</title></titleInfo><titleInfo type="alternative" lang="en" contentType="CDATA"><title>The effect of diatomaceous earth of different origin, temperature and relative humidity against adults of rice weevil (Sitophilus oryzae [L.], Coleoptera, Curculionidae) in stored wheat</title></titleInfo><name type="personal"><namePart type="given">Helena</namePart><namePart type="family">Rojht</namePart><affiliation>Jamnikarjeva 101, SI-1111 Ljubljana</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Christos</namePart><namePart type="family">Athanassiou</namePart><affiliation>Dept. of Plant Science, Agricultural University of Athens, 75 Iera Odos, 11855 Athens, Attica, Greece</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Bill</namePart><namePart type="family">Vayias</namePart><affiliation>ibid</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Nickolas</namePart><namePart type="family">Kavallieratos</namePart><affiliation>Laboratory of Agricultural Entomology, Dept. of Entomology and Agricultural Zoology, Benaki Phytopathological Institute, 8 Stefanou Delta Street, 14561 Kifissia, Attica, Greece</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Željko</namePart><namePart type="family">Tomanović</namePart><affiliation>Faculty of Biology, Dept. of Zoology, University of Belgrade, Studentski trg 16, SER-11000 Belgrade, Serbia</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Matej</namePart><namePart type="family">Vidrih</namePart><affiliation>Jamnikarjeva 101, SI-1111 Ljubljana</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Katarina</namePart><namePart type="family">Kos</namePart><affiliation>ibid</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Stanislav</namePart><namePart type="family">Trdan</namePart><affiliation>ibid</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="research-article" displayLabel="research-article"></genre><originInfo><publisher>Versita</publisher><dateIssued encoding="w3cdtf">2010-03-01</dateIssued><dateCreated encoding="w3cdtf">2010-05-31</dateCreated><copyrightDate encoding="w3cdtf">2010</copyrightDate></originInfo><language><languageTerm type="code" authority="iso639-2b">eng</languageTerm><languageTerm type="code" authority="rfc3066">en</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract lang="en">Laboratory experiments were carried out to evaluate the impact of diatomaceous earth (DE) samples of different origin with their insecticidal properties to control one of the most important primary pest in stored grain. We tested the efficacy of three local DE, from Serbia, Greece and Slovenia, and commercial formulation SilicoSec against the rice weevil, Sitophilus oryzae, adults in stored wheat. The experiments were carried out at three temperatures (20, 25 and 30 °C) and two relative humidity (RH) levels (55 and 75 %). Mortality of pest was counted 7, 14 and 21 days after exposure (DAT) at the following DE dose rates: 100, 300, 500 and 900 ppm. The mortality of adults normally increased with increasing dose rates and DAT. In all samples the mortality of rice weevil adults (dose rate 900 ppm, 21 DAT) was above 90 %, except at Slovenian DE (at 20 °C and 55 % RH) and Greek DE (at 25 °C and 75 % RH), when the mortality was 85.3 and 67.6 %, respectively. With 100 % mortality (14 DAT and at 900 ppm) the most effective was SilicoSec. Slovenian DE was more effective at 55 % RH than at 75 % RH (7 DAT at all temperatures).</abstract><abstract lang="sl">V laboratorijskih poskusih smo preučevali vpliv diatomejske zemlje (DZ) različnega izvora pri zatiranju enega od najpomembnejših primarnih škodljivcev skladiščenega žita. Ugotavljali smo učinkovitost treh lokalnih tipov DZ (srbskega, grškega in slovenskega) in komercialnega pripravka SilicoSec pri zatiranju odraslih osebkov riževega žužka (Sitophilus oryzae) v skladiščeni pšenici. Insekticidno delovanje DZ smo preučevali pri treh temperaturah (20, 25 in 30 °C), dveh vrednostih relativne vlage (55 and 75 %) in štirih (100, 300, 500 and 900 ppm) koncentracijah vsakega vzorca DZ. Smrtnost hroščev smo ugotavljali 7., 14. in 21. dan po tretiranju (DPT) in je bila največja pri najvišji koncentraciji in 21 DPT. V vseh vzorcih žita je bila smrtnost hroščev večja od 90 % pri koncentraciji 900 ppm ter 21 DPT. Izjemi sta bili slovenski in grški vzorec, ki sta vplivali na 85,3 % smrtnost pri 25 °C in 55 % vlagi ter na 67,6 % smrtnot pri 25 °C in 75 % vlagi. Najbolj učinkovit (100 % smrtnost hroščev) je bil pripravek SilicoSec 14 DPT pri koncentraciji 900 ppm. Slovenski vzorec DE je bil bolj učinkovit pri 55 kot pri 75 % vlagi (7 DPT pri vseh temperaturah).</abstract><subject lang="en"><genre>Keywords</genre><topic>diatomaceous earth</topic><topic>origin</topic><topic>stored wheat</topic><topic>temperature</topic><topic>relative humidity</topic></subject><subject lang="sl"><genre>Keywords</genre><topic>Sitophilus oryzae</topic><topic>diatomejska zemlja</topic><topic>izvor</topic><topic>pšenica</topic><topic>temperatura</topic><topic>relativna vlaga</topic></subject><relatedItem type="host"><titleInfo><title>Acta agriculturae Slovenica</title></titleInfo><genre type="journal">journal</genre><identifier type="ISSN">1581-9175</identifier><identifier type="eISSN">1854-1941</identifier><identifier type="PublisherID">ACAS</identifier><part><date>2010</date><detail type="volume"><caption>vol.</caption><number>95</number></detail><detail type="issue"><caption>no.</caption><number>1</number></detail><extent unit="pages"><start>13</start><end>20</end></extent></part></relatedItem><identifier type="istex">1DED22CF1147C6DFDF861C096AD2C56562A71C83</identifier><identifier type="DOI">10.2478/v10014-010-0002-4</identifier><identifier type="ArticleID">v10014-010-0002-4</identifier><identifier type="pdf">v10014-010-0002-4.pdf</identifier><accessCondition type="use and reproduction" contentType="open-access">This content is open access.</accessCondition><recordInfo><recordContentSource>De Gruyter</recordContentSource></recordInfo></mods></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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