Competition between Catolaccus grandis (Hymenoptera: Pteromalidae) and Bracon vulgaris (Hymenoptera: Braconidae), parasitoids of the Boll Weevil

The competition between populations of the parasitoids C. grandis and B. vulgaris was studied using larvae of Euscepes postfasciatus (Fairmaire) as an alternative host. A series of biological parameters was observed and related to the competitive abilities of both parasitoid species. They were capab...

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Main Authors: Francisco de Sousa Ramalho, Ana Maria Camêlo da Silva, José Cola Zanuncio, José Eduardo Serrão
Format: Article
Language:English
Published: Instituto de Tecnologia do Paraná (Tecpar) 2007-05-01
Series:Brazilian Archives of Biology and Technology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000300002
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spelling doaj-efc32e747a824377b5136e00ec2eb20d2020-11-25T00:24:40ZengInstituto de Tecnologia do Paraná (Tecpar)Brazilian Archives of Biology and Technology1516-89131678-43242007-05-0150337137810.1590/S1516-89132007000300002Competition between Catolaccus grandis (Hymenoptera: Pteromalidae) and Bracon vulgaris (Hymenoptera: Braconidae), parasitoids of the Boll WeevilFrancisco de Sousa RamalhoAna Maria Camêlo da SilvaJosé Cola ZanuncioJosé Eduardo SerrãoThe competition between populations of the parasitoids C. grandis and B. vulgaris was studied using larvae of Euscepes postfasciatus (Fairmaire) as an alternative host. A series of biological parameters was observed and related to the competitive abilities of both parasitoid species. They were capable of colonizing and maintaining their populations regardless of host location. The population growth of C. grandis and B. vulgaris, based on fecundity was not affected by the competition. The parasitism and survivorship to the adult stage were affected by competition, except when the host was located at the bottom of the rearing cage. C. grandis performed better than B. vulgaris independently of the competition and host location, but it did not exclude the other species.<br>Catolaccus grandis (Burks) e Bracon vulgaris Ashmead são os principais parasitóides do bicudo-do-algodoeiro Anthonomus grandis Boheman no Nordeste do Brasil. É importante que se determinem as interações entre esses parasitóides e o seu efeito em programas de controle biológico dessa praga com os mesmos. A competição entre os parasitóides C. grandis e B. vulgaris foi estudada, utilizando-se larvas de Euscepes postfasciatus Fairmaire como hospedeiro alternativo. A fecundidade de C. grandis e B. vulgaris baseada na produção de ovos, não foi afetada pela competição, mas o parasitismo e a produção de adultos desses parasitóides foram afetados pela competição, exceto quando o hospedeiro se encontrava na base da caixa de criação. Independentemente da competição e da localização do hospedeiro, C. grandis apresentou melhor desempenho que B. vulgaris, mas não excluiu as populações da outra espécie de parasitóide.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000300002Biological controlAnthonomus grandiscompetition between parasitoids
collection DOAJ
language English
format Article
sources DOAJ
author Francisco de Sousa Ramalho
Ana Maria Camêlo da Silva
José Cola Zanuncio
José Eduardo Serrão
spellingShingle Francisco de Sousa Ramalho
Ana Maria Camêlo da Silva
José Cola Zanuncio
José Eduardo Serrão
Competition between Catolaccus grandis (Hymenoptera: Pteromalidae) and Bracon vulgaris (Hymenoptera: Braconidae), parasitoids of the Boll Weevil
Brazilian Archives of Biology and Technology
Biological control
Anthonomus grandis
competition between parasitoids
author_facet Francisco de Sousa Ramalho
Ana Maria Camêlo da Silva
José Cola Zanuncio
José Eduardo Serrão
author_sort Francisco de Sousa Ramalho
title Competition between Catolaccus grandis (Hymenoptera: Pteromalidae) and Bracon vulgaris (Hymenoptera: Braconidae), parasitoids of the Boll Weevil
title_short Competition between Catolaccus grandis (Hymenoptera: Pteromalidae) and Bracon vulgaris (Hymenoptera: Braconidae), parasitoids of the Boll Weevil
title_full Competition between Catolaccus grandis (Hymenoptera: Pteromalidae) and Bracon vulgaris (Hymenoptera: Braconidae), parasitoids of the Boll Weevil
title_fullStr Competition between Catolaccus grandis (Hymenoptera: Pteromalidae) and Bracon vulgaris (Hymenoptera: Braconidae), parasitoids of the Boll Weevil
title_full_unstemmed Competition between Catolaccus grandis (Hymenoptera: Pteromalidae) and Bracon vulgaris (Hymenoptera: Braconidae), parasitoids of the Boll Weevil
title_sort competition between catolaccus grandis (hymenoptera: pteromalidae) and bracon vulgaris (hymenoptera: braconidae), parasitoids of the boll weevil
publisher Instituto de Tecnologia do Paraná (Tecpar)
series Brazilian Archives of Biology and Technology
issn 1516-8913
1678-4324
publishDate 2007-05-01
description The competition between populations of the parasitoids C. grandis and B. vulgaris was studied using larvae of Euscepes postfasciatus (Fairmaire) as an alternative host. A series of biological parameters was observed and related to the competitive abilities of both parasitoid species. They were capable of colonizing and maintaining their populations regardless of host location. The population growth of C. grandis and B. vulgaris, based on fecundity was not affected by the competition. The parasitism and survivorship to the adult stage were affected by competition, except when the host was located at the bottom of the rearing cage. C. grandis performed better than B. vulgaris independently of the competition and host location, but it did not exclude the other species.<br>Catolaccus grandis (Burks) e Bracon vulgaris Ashmead são os principais parasitóides do bicudo-do-algodoeiro Anthonomus grandis Boheman no Nordeste do Brasil. É importante que se determinem as interações entre esses parasitóides e o seu efeito em programas de controle biológico dessa praga com os mesmos. A competição entre os parasitóides C. grandis e B. vulgaris foi estudada, utilizando-se larvas de Euscepes postfasciatus Fairmaire como hospedeiro alternativo. A fecundidade de C. grandis e B. vulgaris baseada na produção de ovos, não foi afetada pela competição, mas o parasitismo e a produção de adultos desses parasitóides foram afetados pela competição, exceto quando o hospedeiro se encontrava na base da caixa de criação. Independentemente da competição e da localização do hospedeiro, C. grandis apresentou melhor desempenho que B. vulgaris, mas não excluiu as populações da outra espécie de parasitóide.
topic Biological control
Anthonomus grandis
competition between parasitoids
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000300002
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