The biological characteristics and distribution of the greenbug, Schizaphis graminum, and Russian wheat aphid, Diuraphis noxia (Hemiptera: Aphididae), in Argentina and Chile

The aphids Schizaphis graminum (Rondani) (greenbug) and Diuraphis noxia (Mordvilko) (Russian wheat aphid, RWA) were collected from several localities in Argentina and Southern Chile. Clones were established from aphids collected at each location. The host preferences were studied in free choice test...

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Authors: Clua, Ariel Adrián, Castro, Ana María, Ramos, Silvina Gabriela, Giménez, Daniel Oscar, Vasicek, Araceli, Chidichimo, Hugo Oscar, Dixon, Anthony F. G.
Format: article
Status:Published version
Publication Date:2004
Country:Argentina
Institution:Universidad Nacional de La Plata
Repository:SEDICI (UNLP)
Language:English
OAI Identifier:oai:sedici.unlp.edu.ar:10915/83255
Online Access:http://sedici.unlp.edu.ar/handle/10915/83255
Access Level:Open access
Keyword:Ciencias Agrarias
Biotypes
Diuraphis noxia
Geographical distribution
Greenbug
Host-preference
Reproductive behaviour
RWA
Schizaphis graminum
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spelling The biological characteristics and distribution of the greenbug, Schizaphis graminum, and Russian wheat aphid, Diuraphis noxia (Hemiptera: Aphididae), in Argentina and ChileClua, Ariel AdriánCastro, Ana MaríaRamos, Silvina GabrielaGiménez, Daniel OscarVasicek, AraceliChidichimo, Hugo OscarDixon, Anthony F. G.Ciencias AgrariasBiotypesDiuraphis noxiaGeographical distributionGreenbugHost-preferenceReproductive behaviourRWASchizaphis graminumThe aphids Schizaphis graminum (Rondani) (greenbug) and Diuraphis noxia (Mordvilko) (Russian wheat aphid, RWA) were collected from several localities in Argentina and Southern Chile. Clones were established from aphids collected at each location. The host preferences were studied in free choice tests. Biotypes were characterized on the basis of aphid antibiosis and host plant tolerance. The production of sexuals was assessed under natural conditions, from March to November in 1997-2001, at La Plata (34°55′ S, 57°57′ W). The greenbug distribution ranged from 24°40′ to 43°28′ S, and was bounded between isothermals 18-20°C and 8-10°C, and isohyets 400-600 mm and greater than 1200 mm. The aphids at all localities were collected from a wide range of cultivated and wild hosts. The biotypes in ten out of thirty-four populations were identified. One population was obligatorily parthenogenetic, the remainder cyclically parthenogenetic. No correlation was found between the region they came from and the period required for the induction of sexuals. RWA was found between 26°50′ and 43°28′S, bounded by the isothermals 20-22°C and 8-10°C, and isohyets 400-600 mm and 2000 mm. In Chile, this aphid was only found in Osorno County, which lies on isothermal 8-10°C and is bounded by the isohyets 1 000 mm and 2000 mm. Only a few RWA genotypes (clones) produced sexuals irrespective of the host they were collected from, period of the year, region, current host, or the day length and average temperature of the rearing conditions. For the first time, RWA was found infesting cultivated as well as wild oats in South America. At low latitudes, populations of both aphid species were found only infesting wild Sorghum halepensis (L).Facultad de Ciencias Agrarias y Forestales2004info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf193-198http://sedici.unlp.edu.ar/handle/10915/83255enginfo:eu-repo/semantics/altIdentifier/issn/1210-5759info:eu-repo/semantics/altIdentifier/doi/10.14411/eje.2004.024info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2024-05-08T12:53:50Zoai:sedici.unlp.edu.ar:10915/83255Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292024-05-08 12:53:51.117SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv The biological characteristics and distribution of the greenbug, Schizaphis graminum, and Russian wheat aphid, Diuraphis noxia (Hemiptera: Aphididae), in Argentina and Chile
title The biological characteristics and distribution of the greenbug, Schizaphis graminum, and Russian wheat aphid, Diuraphis noxia (Hemiptera: Aphididae), in Argentina and Chile
spellingShingle The biological characteristics and distribution of the greenbug, Schizaphis graminum, and Russian wheat aphid, Diuraphis noxia (Hemiptera: Aphididae), in Argentina and Chile
Clua, Ariel Adrián
Ciencias Agrarias
Biotypes
Diuraphis noxia
Geographical distribution
Greenbug
Host-preference
Reproductive behaviour
RWA
Schizaphis graminum
title_short The biological characteristics and distribution of the greenbug, Schizaphis graminum, and Russian wheat aphid, Diuraphis noxia (Hemiptera: Aphididae), in Argentina and Chile
title_full The biological characteristics and distribution of the greenbug, Schizaphis graminum, and Russian wheat aphid, Diuraphis noxia (Hemiptera: Aphididae), in Argentina and Chile
title_fullStr The biological characteristics and distribution of the greenbug, Schizaphis graminum, and Russian wheat aphid, Diuraphis noxia (Hemiptera: Aphididae), in Argentina and Chile
title_full_unstemmed The biological characteristics and distribution of the greenbug, Schizaphis graminum, and Russian wheat aphid, Diuraphis noxia (Hemiptera: Aphididae), in Argentina and Chile
title_sort The biological characteristics and distribution of the greenbug, Schizaphis graminum, and Russian wheat aphid, Diuraphis noxia (Hemiptera: Aphididae), in Argentina and Chile
dc.creator.none.fl_str_mv Clua, Ariel Adrián
Castro, Ana María
Ramos, Silvina Gabriela
Giménez, Daniel Oscar
Vasicek, Araceli
Chidichimo, Hugo Oscar
Dixon, Anthony F. G.
author Clua, Ariel Adrián
author_facet Clua, Ariel Adrián
Castro, Ana María
Ramos, Silvina Gabriela
Giménez, Daniel Oscar
Vasicek, Araceli
Chidichimo, Hugo Oscar
Dixon, Anthony F. G.
author_role author
author2 Castro, Ana María
Ramos, Silvina Gabriela
Giménez, Daniel Oscar
Vasicek, Araceli
Chidichimo, Hugo Oscar
Dixon, Anthony F. G.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Agrarias
Biotypes
Diuraphis noxia
Geographical distribution
Greenbug
Host-preference
Reproductive behaviour
RWA
Schizaphis graminum
topic Ciencias Agrarias
Biotypes
Diuraphis noxia
Geographical distribution
Greenbug
Host-preference
Reproductive behaviour
RWA
Schizaphis graminum
description The aphids Schizaphis graminum (Rondani) (greenbug) and Diuraphis noxia (Mordvilko) (Russian wheat aphid, RWA) were collected from several localities in Argentina and Southern Chile. Clones were established from aphids collected at each location. The host preferences were studied in free choice tests. Biotypes were characterized on the basis of aphid antibiosis and host plant tolerance. The production of sexuals was assessed under natural conditions, from March to November in 1997-2001, at La Plata (34°55′ S, 57°57′ W). The greenbug distribution ranged from 24°40′ to 43°28′ S, and was bounded between isothermals 18-20°C and 8-10°C, and isohyets 400-600 mm and greater than 1200 mm. The aphids at all localities were collected from a wide range of cultivated and wild hosts. The biotypes in ten out of thirty-four populations were identified. One population was obligatorily parthenogenetic, the remainder cyclically parthenogenetic. No correlation was found between the region they came from and the period required for the induction of sexuals. RWA was found between 26°50′ and 43°28′S, bounded by the isothermals 20-22°C and 8-10°C, and isohyets 400-600 mm and 2000 mm. In Chile, this aphid was only found in Osorno County, which lies on isothermal 8-10°C and is bounded by the isohyets 1 000 mm and 2000 mm. Only a few RWA genotypes (clones) produced sexuals irrespective of the host they were collected from, period of the year, region, current host, or the day length and average temperature of the rearing conditions. For the first time, RWA was found infesting cultivated as well as wild oats in South America. At low latitudes, populations of both aphid species were found only infesting wild Sorghum halepensis (L).
publishDate 2004
dc.date.none.fl_str_mv 2004
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/83255
url http://sedici.unlp.edu.ar/handle/10915/83255
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1210-5759
info:eu-repo/semantics/altIdentifier/doi/10.14411/eje.2004.024
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
193-198
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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