Temperature requirements of Aphelinus sp. nr. varipes (Foerster) (Hymenoptera: Aphelinidae) a parasitoid of the Russian wheat aphid, Diuraphis noxia (Kurdjumov) (Homoptera: Aphididae)
The thermal requirements, lower developmental threshold (t) and thermal constant, (K) for three developmental stages of an Aphelinus sp. nr. varipes (Hymenoptera: Aphelinidae), a parasitoid of the Russian wheat aphid, Diuraphis noxia (Kurdjumov) (Homoptera: Aphididae), were established under laborat...
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| Veröffentlicht in: | African entomology 2000-03, Vol.8 (1), p.75-79 |
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| creator | Prinsloo, G.J. (Agricultural Research Council, Bethlehem (South Africa). Small Grain Inst.) Du Plessis, U |
| description | The thermal requirements, lower developmental threshold (t) and thermal constant, (K) for three developmental stages of an Aphelinus sp. nr. varipes (Hymenoptera: Aphelinidae), a parasitoid of the Russian wheat aphid, Diuraphis noxia (Kurdjumov) (Homoptera: Aphididae), were established under laboratory conditions. Studies were conducted at constant temperatures across a range from 14-30 C and with a 16L:8D photoperiod. During a preliminary trial with a 12L: 12D photoperiod, diapause was induced at 14C. The thermal requirements for the egg to mummy, mummy to adult and egg to adult development periods were estimated respectively as t = 6.59,8.03 and 7.53 C, and K = 96.71, 111.12 and 212.77 degree-days. The upper developmental threshold was considered to be above 30 C because development did not cease and was not prolonged at this temperature. |
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(Agricultural Research Council, Bethlehem (South Africa). Small Grain Inst.) ; Du Plessis, U</creator><creatorcontrib>Prinsloo, G.J. (Agricultural Research Council, Bethlehem (South Africa). Small Grain Inst.) ; Du Plessis, U</creatorcontrib><description>The thermal requirements, lower developmental threshold (t) and thermal constant, (K) for three developmental stages of an Aphelinus sp. nr. varipes (Hymenoptera: Aphelinidae), a parasitoid of the Russian wheat aphid, Diuraphis noxia (Kurdjumov) (Homoptera: Aphididae), were established under laboratory conditions. Studies were conducted at constant temperatures across a range from 14-30 C and with a 16L:8D photoperiod. During a preliminary trial with a 12L: 12D photoperiod, diapause was induced at 14C. The thermal requirements for the egg to mummy, mummy to adult and egg to adult development periods were estimated respectively as t = 6.59,8.03 and 7.53 C, and K = 96.71, 111.12 and 212.77 degree-days. The upper developmental threshold was considered to be above 30 C because development did not cease and was not prolonged at this temperature.</description><identifier>ISSN: 1021-3589</identifier><language>eng</language><publisher>Pretoria: Entomological Society of South Africa (ESSA)</publisher><subject>AFRIQUE DU SUD ; Aphelinidae ; APHELINUS ; Aphelinus sp. nr. Varipes ; Aphelinus varipes ; Aphididae ; Biological and medical sciences ; BIOLOGICAL CONTROL ; CLIMATIC FACTORS ; Control ; CONTROL BIOLOGICO ; Development rate ; DEVELOPMENTAL STAGES ; DIURAPHIS NOXIA ; ETAPAS DE DESARROLLO ; FACTEUR CLIMATIQUE ; FACTORES CLIMATICOS ; Fundamental and applied biological sciences. Psychology ; LUTTE BIOLOGIQUE ; Parasitoid ; Phytopathology. Animal pests. Plant and forest protection ; Protozoa. Invertebrates ; SOUTH AFRICA ; STADE DE DEVELOPPEMENT ; SUDAFRICA ; TEMPERATURA ; TEMPERATURE ; Temperature requirements ; TERMORREGULACION ; THERMOREGULATION ; TRITICUM AESTIVUM</subject><ispartof>African entomology, 2000-03, Vol.8 (1), p.75-79</ispartof><rights>2000 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=1494986$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Prinsloo, G.J. (Agricultural Research Council, Bethlehem (South Africa). Small Grain Inst.)</creatorcontrib><creatorcontrib>Du Plessis, U</creatorcontrib><title>Temperature requirements of Aphelinus sp. nr. varipes (Foerster) (Hymenoptera: Aphelinidae) a parasitoid of the Russian wheat aphid, Diuraphis noxia (Kurdjumov) (Homoptera: Aphididae)</title><title>African entomology</title><description>The thermal requirements, lower developmental threshold (t) and thermal constant, (K) for three developmental stages of an Aphelinus sp. nr. varipes (Hymenoptera: Aphelinidae), a parasitoid of the Russian wheat aphid, Diuraphis noxia (Kurdjumov) (Homoptera: Aphididae), were established under laboratory conditions. Studies were conducted at constant temperatures across a range from 14-30 C and with a 16L:8D photoperiod. During a preliminary trial with a 12L: 12D photoperiod, diapause was induced at 14C. The thermal requirements for the egg to mummy, mummy to adult and egg to adult development periods were estimated respectively as t = 6.59,8.03 and 7.53 C, and K = 96.71, 111.12 and 212.77 degree-days. The upper developmental threshold was considered to be above 30 C because development did not cease and was not prolonged at this temperature.</description><subject>AFRIQUE DU SUD</subject><subject>Aphelinidae</subject><subject>APHELINUS</subject><subject>Aphelinus sp. nr. Varipes</subject><subject>Aphelinus varipes</subject><subject>Aphididae</subject><subject>Biological and medical sciences</subject><subject>BIOLOGICAL CONTROL</subject><subject>CLIMATIC FACTORS</subject><subject>Control</subject><subject>CONTROL BIOLOGICO</subject><subject>Development rate</subject><subject>DEVELOPMENTAL STAGES</subject><subject>DIURAPHIS NOXIA</subject><subject>ETAPAS DE DESARROLLO</subject><subject>FACTEUR CLIMATIQUE</subject><subject>FACTORES CLIMATICOS</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>LUTTE BIOLOGIQUE</subject><subject>Parasitoid</subject><subject>Phytopathology. Animal pests. Plant and forest protection</subject><subject>Protozoa. Invertebrates</subject><subject>SOUTH AFRICA</subject><subject>STADE DE DEVELOPPEMENT</subject><subject>SUDAFRICA</subject><subject>TEMPERATURA</subject><subject>TEMPERATURE</subject><subject>Temperature requirements</subject><subject>TERMORREGULACION</subject><subject>THERMOREGULATION</subject><subject>TRITICUM AESTIVUM</subject><issn>1021-3589</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><recordid>eNpNkctu1TAQhrMAiVJ4BCQvEDoVPZXtXOywi0pLoZUqobJhY02SCcdVErseu5cn4_VIOEViNTPS938a6X-RHQguxTYvdf0qe010y7mUuqoPst83OHkMEFNAFvAu2YATzpGYG1jjdzjaOREjf8LmcMLuIViPxDbnDgNFDEdsc_G0BJxfDvj0L2J7wCMGzEMAstHZfvXFHbLvicjCzB52CJGB39n-mH22Kawrsdk9WmCbyxT62zS5-9Xvpv_stv_rfpO9HGAkfPs8D7Mf52c3pxfbq-svX0-bq-0glYhbIXiptZSyzKu2ritoCyU6DUqVqmsryVtVC1EKybEqh0Ejb0Vdir4vuj6HrssPsw97rw_uLiFFM1nqcBxhRpfICFWJIld6Ad8_g0AdjEOAubNkfLAThCcjirqodbVgH_cYQWtnjIYAfWrN8qfkpvnWrEWtPRmp-UK_29MDOAO_wiL82UjOBedclSL_A_8Ckew</recordid><startdate>20000301</startdate><enddate>20000301</enddate><creator>Prinsloo, G.J. (Agricultural Research Council, Bethlehem (South Africa). Small Grain Inst.)</creator><creator>Du Plessis, U</creator><general>Entomological Society of South Africa (ESSA)</general><general>Entomological Society of Southern Africa</general><scope>FBQ</scope><scope>IQODW</scope><scope>7SS</scope></search><sort><creationdate>20000301</creationdate><title>Temperature requirements of Aphelinus sp. nr. varipes (Foerster) (Hymenoptera: Aphelinidae) a parasitoid of the Russian wheat aphid, Diuraphis noxia (Kurdjumov) (Homoptera: Aphididae)</title><author>Prinsloo, G.J. (Agricultural Research Council, Bethlehem (South Africa). Small Grain Inst.) ; Du Plessis, U</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-f271t-110588222536b996ab471c8a7757cb620b79115120e65ff8e0b1951dd4cd3acc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2000</creationdate><topic>AFRIQUE DU SUD</topic><topic>Aphelinidae</topic><topic>APHELINUS</topic><topic>Aphelinus sp. nr. Varipes</topic><topic>Aphelinus varipes</topic><topic>Aphididae</topic><topic>Biological and medical sciences</topic><topic>BIOLOGICAL CONTROL</topic><topic>CLIMATIC FACTORS</topic><topic>Control</topic><topic>CONTROL BIOLOGICO</topic><topic>Development rate</topic><topic>DEVELOPMENTAL STAGES</topic><topic>DIURAPHIS NOXIA</topic><topic>ETAPAS DE DESARROLLO</topic><topic>FACTEUR CLIMATIQUE</topic><topic>FACTORES CLIMATICOS</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>LUTTE BIOLOGIQUE</topic><topic>Parasitoid</topic><topic>Phytopathology. Animal pests. Plant and forest protection</topic><topic>Protozoa. Invertebrates</topic><topic>SOUTH AFRICA</topic><topic>STADE DE DEVELOPPEMENT</topic><topic>SUDAFRICA</topic><topic>TEMPERATURA</topic><topic>TEMPERATURE</topic><topic>Temperature requirements</topic><topic>TERMORREGULACION</topic><topic>THERMOREGULATION</topic><topic>TRITICUM AESTIVUM</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Prinsloo, G.J. (Agricultural Research Council, Bethlehem (South Africa). Small Grain Inst.)</creatorcontrib><creatorcontrib>Du Plessis, U</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>Entomology Abstracts (Full archive)</collection><jtitle>African entomology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Prinsloo, G.J. (Agricultural Research Council, Bethlehem (South Africa). Small Grain Inst.)</au><au>Du Plessis, U</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Temperature requirements of Aphelinus sp. nr. varipes (Foerster) (Hymenoptera: Aphelinidae) a parasitoid of the Russian wheat aphid, Diuraphis noxia (Kurdjumov) (Homoptera: Aphididae)</atitle><jtitle>African entomology</jtitle><date>2000-03-01</date><risdate>2000</risdate><volume>8</volume><issue>1</issue><spage>75</spage><epage>79</epage><pages>75-79</pages><issn>1021-3589</issn><abstract>The thermal requirements, lower developmental threshold (t) and thermal constant, (K) for three developmental stages of an Aphelinus sp. nr. varipes (Hymenoptera: Aphelinidae), a parasitoid of the Russian wheat aphid, Diuraphis noxia (Kurdjumov) (Homoptera: Aphididae), were established under laboratory conditions. Studies were conducted at constant temperatures across a range from 14-30 C and with a 16L:8D photoperiod. During a preliminary trial with a 12L: 12D photoperiod, diapause was induced at 14C. The thermal requirements for the egg to mummy, mummy to adult and egg to adult development periods were estimated respectively as t = 6.59,8.03 and 7.53 C, and K = 96.71, 111.12 and 212.77 degree-days. The upper developmental threshold was considered to be above 30 C because development did not cease and was not prolonged at this temperature.</abstract><cop>Pretoria</cop><pub>Entomological Society of South Africa (ESSA)</pub><tpages>5</tpages></addata></record> |
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| ispartof | African entomology, 2000-03, Vol.8 (1), p.75-79 |
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| language | eng |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | AFRIQUE DU SUD Aphelinidae APHELINUS Aphelinus sp. nr. Varipes Aphelinus varipes Aphididae Biological and medical sciences BIOLOGICAL CONTROL CLIMATIC FACTORS Control CONTROL BIOLOGICO Development rate DEVELOPMENTAL STAGES DIURAPHIS NOXIA ETAPAS DE DESARROLLO FACTEUR CLIMATIQUE FACTORES CLIMATICOS Fundamental and applied biological sciences. Psychology LUTTE BIOLOGIQUE Parasitoid Phytopathology. Animal pests. Plant and forest protection Protozoa. Invertebrates SOUTH AFRICA STADE DE DEVELOPPEMENT SUDAFRICA TEMPERATURA TEMPERATURE Temperature requirements TERMORREGULACION THERMOREGULATION TRITICUM AESTIVUM |
| title | Temperature requirements of Aphelinus sp. nr. varipes (Foerster) (Hymenoptera: Aphelinidae) a parasitoid of the Russian wheat aphid, Diuraphis noxia (Kurdjumov) (Homoptera: Aphididae) |
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