Oviposition sequence and offspring of mated and virgin females of Cotesia flavipes (Hymenoptera: Braconidae) parasitizing Diatraea saccharalis larvae (Lepidoptera: Crambidae)

Scaglia, M.; Chaud-Netto, José; Brochetto-Braga, Márcia Regina; Ceregato, S. A.; Gobbi, Nivar; Rodrigues, Aline

doi:10.1590/s1678-91992005000300007

Cited by 11 publications

(7 citation statements)

References 28 publications

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“…e responsável por aproximadamente 708 milhões de toneladas para a safra 2011/2012(AGRIANUAL, 2010. A produtividade de cana-de-açúcar depende da qualidade da muda e da cultivar, do ambiente e manejo do solo e do controle de insetos-praga (SCAGLIA et al, 2005). Entre as diversas pragas que atacam a cultura no Brasil, a broca da cana, Diatraea saccharalis (Fabricius, 1794) (Lepidoptera: Crambidae), é a espécie de maior relevância nos canaviais brasileiros (DINARDO-MIRANDA, 2008), por sua ampla distribuição (MACEDO; ARAÚJO, 2000) e a que causa os maiores prejuízos para a cultura (SCAGLIA et al, 2005).…”

Section: Introductionunclassified

Divergência genética de cultivares de cana-de-açúcar quanto à resistência a Diatraea saccharalis

et al. 2013

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Section: Introductionunclassified

Divergência genética de cultivares de cana-de-açúcar quanto à resistência a Diatraea saccharalis

et al. 2013

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“…Campos-Farinha et al (2000), Campos-Farinha and ChaudNeto (2002) and Scaglia et al (2005) also observed adults emerging from each parasitized larvae in similar numbers in laboratory studies.…”

Section: Resultsmentioning

confidence: 72%

Dispersal of Cotesia flavipes in sugarcane field and implications for parasitoid releases

Dinardo-Miranda¹,

Fracasso²,

Costa³

et al. 2014

Bragantia

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Diatraea saccharalis Fabr. (Lepidoptera: Crambidae) is a major sugarcane pest in Brazil. The management of infested areas is based on the release of Cotesia flavipes (Cameron) (Hymenoptera: Braconidae), a parasitoid of D. saccharalis larvae, but there are doubts about the effectiveness of C. flavipes, primarily regarding its rate of dispersal in sugarcane fields. Thus, the objective of this study was to evaluate the dispersal of C. flavipes in a sugarcane field and suggest a release method that provides higher parasitoid efficiency. The study was carried out in four areas of approximately 1 ha, in which stalk pieces containing 20 D. saccharalis larvae were distributed in a rectangular grid, and 12,000 C. flavipes adults were released at four points, that were 50 m apart and 25 m from the field border. Three days later, the D. saccharalis larvae were recovered and kept in the laboratory until they reached pupal stage or C. flavipes emergence. Parasitism varied from 13.2% to 42.8%. The random distribution of parasitized larvae was found in one assay. In three areas, the parasitized larvae showed an aggregated distribution, with a range of 15 to 25 m. Since the parasite's success is directly linked to parasitoid dispersion, it would be interesting to move the release points to 30 m from each other because the dispersal may happen in a 15 m radius.Key words: sugarcane borer, Diatraea saccharalis, biological control, aggregation, pest management. Dispersão de Cotesia flavipes em canavial e implicações para a liberação do parasitoideResumo Diatraea saccharalis Fabr. (Lepidoptera: Crambidae) é uma das principais pragas da cana-de-açúcar no Brasil. O manejo de áreas infestadas é baseado na liberação de Cotesia flavipes (Cameron) (Hymenoptera: Braconidae), um parasitoide de larvas de D. saccharalis, mas existem dúvidas a respeito da eficiência de C. flavipes, principalmente em relação à sua capacidade de dispersão em campo. Assim, o objetivo deste estudo foi avaliar a capacidade de dispersão de C. flavipes em canaviais e sugerir um método de liberação que propicie maior eficiência do parasitoide. O estudo foi conduzido em quatro áreas de aproximadamente 1 ha, e, em cada uma, pedaços de colmos contendo 20 larvas de D. saccharalis foram distribuídos em grid retangular e 12 mil adultos de C. flavipes foram liberados em quatro pontos, separados entre si por 50 m e a 25 m das bordaduras do campo. Três dias depois, as larvas de D. saccharalis foram removidas e mantidas em laboratório até se transformarem em pupas ou até a emergência de C. flavipes. O parasitismo variou de 13,2% a 42,8%. As larvas parasitadas se distribuíram ao acaso em uma área e em três áreas a distribuição foi agregada, com alcance de 15 a 25 m. Visto que o sucesso do parasitismo está diretamente ligado à dispersão do parasitoide, sugere-se que os pontos de liberação estejam distantes entre si 30 m, visto que o raio de dispersão pode ser de 15 m.Palavras-chave: broca-da-cana, Diatraea saccharalis, controle biológico, agregação, manejo de pragas.

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“…It is known that radiation can damage the capacity of certain insect hosts to defend themselves and consequently a parasitoid may not confront fully competent resistance. For example, the irradiation of the lepidopteran hosts of the braconid Cotesia flavipes (Cameron) (Hymenoptera: Braconidae) increased parasitism rates [27]. Some evidence likewise indicates that the larvae of Tephritidae are immunologically compromised, thus radiation can result in a higher percentage of parasitoid emergence.…”

Section: Discussionmentioning

confidence: 99%

Using Gamma Irradiated Galleria mellonella L. and Plodia interpunctella (Hübner) Larvae to Optimize Mass Rearing of Parasitoid Habrobracon hebetor (Say) (Hymenoptera: Braconidae)

Hasan

Yeasmin

Athanassiou

et al. 2019

Insects

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We evaluated possible improvements to the mass rearing of the larval parasitoid Habrobracon hebetor (Say) (Hymenoptera: Braconidae) on irradiated host wax moth Galleria mellonella L. and Indian meal moth Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae) larvae. The use of irradiated G. mellonella and P. interpunctella larvae at the dose of 150 Gy proved useful for enhancing the parasitism and adult emergence of H. hebetor due to the absence of negative repercussions on parasitoid development. Overall, parasitism was increased as the host larvae was irradiated with higher doses, while significantly higher parasitism was recorded at 150 and 300 Gy compared to lower doses. The female parasitoids preferred the irradiated larvae and significantly higher numbers of larvae were parasitized compared with non-irradiated larvae. The results also showed that irradiated larvae of G. mellonella served better as hosts for H. hebetor as compared with irradiated larvae of P. interpunctella. The implementation of these findings would be helpful for improving the mass production of parasitoids and the effectiveness of releases of biocontrol agents for the control of stored product pests.

show abstract

Oviposition sequence and offspring of mated and virgin females of Cotesia flavipes (Hymenoptera: Braconidae) parasitizing Diatraea saccharalis larvae (Lepidoptera: Crambidae)

Cited by 11 publications

References 28 publications

Divergência genética de cultivares de cana-de-açúcar quanto à resistência a Diatraea saccharalis

Divergência genética de cultivares de cana-de-açúcar quanto à resistência a Diatraea saccharalis

Dispersal of Cotesia flavipes in sugarcane field and implications for parasitoid releases

Using Gamma Irradiated Galleria mellonella L. and Plodia interpunctella (Hübner) Larvae to Optimize Mass Rearing of Parasitoid Habrobracon hebetor (Say) (Hymenoptera: Braconidae)

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