Natural parasitism by  Trichogramma spp. in agroecosystems of the Mid-North, Brazil

Querino, Ranyse Barboa; Silva, Nadja Nara Pereira da; Zucchi, Roberto A.

doi:10.1590/0103-8478cr20151352

Cited by 12 publications

(5 citation statements)

References 2 publications

(1 reference statement)

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“…Parasitoides de ovos Trichogramma (Hymenoptera: Trichogrammatidae) são utilizados em programas de controle biológico (Almeida et al, 2010;Davies et al, 2011), com destaque para o controle de Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae) com Trichogramma pretiosum Riley, 1869 (Beserra & Parra, 2005;Figueiredo et al 2015;Querino et al, 2016). O sucesso da espécie como agente de controle biológico, depende do conhecimento de suas características bioecológicas relacionadas à interação com o hospedeiro (Siqueira et al, 2011), como a sua habilidade de localizar e parasitar a praga-alvo (Gazit et al, 1996).…”

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Influência da idade do hospedeiro e da aprendizagem no comportamento quimiotáxico e no parasitismo de Trichogramma pretiosum

Vargas

Sant’Ana

Morais

et al. 2017

Iheringia, Sér. Zool.

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ABSTRACT. Infl uence of host age and learning on chemotactic behavior and parasitism of Trichogramma pretiosum. Trichogramma pretiosum Riley, 1879 reared on Ephestia kuehniella Zeller, 1879 eggs, have been used in biological control of Spodoptera frugiperda (J. E. Smith, 1797). However, host age and experience just after emergence might have some infl uence on parasitism and parasitoid behavior. This study evaluated the infl uence of S. frugiperda host age and egg odor experience, on chemotactic behavior and parasitism of T. pretiosum. Spodoptera frugiperda eggs with 24, 48 and 72 hours were exposed to T. pretiosum females. Parasitoid time experience, in the same host, was evaluated within 1, 3, 4, 5, 6 and 24 hours, as well as, its host exposed time (1, 2, 3 and 24 hours). Chemotactic responses of T. pretiosum (experienced and inexperienced females) to S. frugiperda egg extracts were recorded in Y-tube olfactometer. We also observe parasitism rates (choice tests) in insects with and without experience. The parasitism average was higher in S. frugiperda eggs with 24 hours. Inexperienced females and those experienced for 1, 3 and 4 hours, parasitized less S. frugiperda eggs compared to those for 5, 6 and 24 hours. There was no diff erence in parasitism from females exposed for 2, 3 and 24 hours when compared to those exposed for one hour. Experienced females were more attracted to S. frugiperda eggs odor than to control (hexano). Parasitism percentage, by inexperienced parasitoids, was greater in E. kuehniella eggs (original host) than in S. frugiperda, however it was not observed in experienced females.KEYWORDS: Biological control, egg parasitoid, eggs extract.RESUMO. Trichogramma pretiosum Riley, 1879 mantido em ovos de Ephestia kuehniella Zeller, 1879, tem sido utilizado no controle biológico de Spodoptera frugiperda (J. E. Smith, 1797). No entanto, fatores como idade do hospedeiro e experiência prévia, podem infl uenciar o parasitismo e o comportamento do parasitoide. Esse estudo avaliou a infl uência da idade dos ovos e da experiência em ovos e extrato de ovos de S. frugiperda no comportamento quimiotáxico e no parasitismo de T. pretiosum. Ovos de S. frugiperda com 24, 48 e 72 horas, foram expostos a fêmeas de T. pretiosum. Também foi avaliado o tempo de experiência do parasitoide, no mesmo hospedeiro, por 1, 3, 4, 5, 6 e 24 horas, assim como, seu tempo de exposição (1, 2, 3 e 24 horas). As respostas quimiotáxicas de T. pretiosum (experiente e não experiente) em extrato de ovos de S. frugiperda foram observadas em olfatômetro tipo Y. As taxas de parasitismo foram registradas em teste de escolha, com insetos experientes e inexperientes com ovos e extrato de ovos de S. frugiperda. O parasitismo em S. frugiperda foi signifi cativamente maior em ovos com 24 horas de idade. Fêmeas inexperientes e experientes por 1, 3 e 4 horas, apresentaram uma menor taxa de parasitismo, quando comparadas a fêmeas expostas por 5, 6 e 24 horas. Não houve diferença de parasitismo em fêmeas expostas por 2, 3 e 24 horas, comparadas à...

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Influência da idade do hospedeiro e da aprendizagem no comportamento quimiotáxico e no parasitismo de Trichogramma pretiosum

Vargas

Sant’Ana

Morais

et al. 2017

Iheringia, Sér. Zool.

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“…In the present study, survey to collect trichogrammatids was carried out in seven states, and natural parasitism consisted of 11 species, of which, five species were observed parasitizing the lepidopteran eggs infesting 12 plant species out of 28 plant species that were sampled for lepidopteran eggs or trapped in sentinel egg cards in the agricultural, vegetables and fruits crops grown under diverse cropping conditions. Previously, the natural parasitism of Trichogramma species was reported on lepidopteran eggs sampled from eight crops (Querino et al, 2016;Jalali et al, 2018), and the seven crops through sentinel trap cards (Suroshe et al, 2015) in the diversified cropping system. Besides, the lepidopteran eggs which were obtained from wild plants had a higher rate of parasitism by Trichogramma species in undisturbed habitats.…”

Section: Resultsmentioning

confidence: 99%

Natural parasitism by trichogrammatids (Hymenoptera: Trichogrammatidae) on lepidopteran eggs under diverse cropping system

Navik

Jalali

Lalitha

2019

Journal of Biological Control

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The present study was conducted to collect and identify the species of trichogrammatids from eggs of lepidopteran pests infesting the diverse cropping systems in the country. A total of 28 plant species were inspected for the collection of lepidopteran eggs either through collection of insect eggs or by placing sentinel egg cards. The species such as Trichogramma chilonis Ishii, T. achaeae Nagaraja and Nagarkatti, T. danausicida Nagaraja, Trichogrammatoidea bactrae Nagaraja and Tr. armigera Manjunath were recorded naturally occurring with 12 species of lepidopteran insect pests. In nature, the parasitism rate varied from 5.35 to 82.25% by the associated trichogrammatids. A total of 596 sentinel trap cards were placed in the agricultural, vegetables, fruits crops, and grasses on the bunds of fields to trap the egg parasitoids present in the different habitat. Through sentinel cards, three species, viz., T. chilonis, T. achaeae and Tr. bactrae were found inhabit the vegetables and ornamental crops. The percentage of adult emergence from the sentinel trap cards ranged from 70.59 to 100.0%. Natural parasitism of Tr. bactrae recorded for the first time on the eggs of Lampides boeticus L. infesting wild species of Crotalaria. In addition, the natural parasitism of Tr. armigera and Tr. bactrae on the eggs of L. boeticus laid on either cultivated or wild relatives of Crotalaria in undisturbed habitat had higher natural parasitism due to their bright yellow flower attracts parasitoids to parasitize the eggs and conserve these egg parasitoids. Recently, natural parasitism of Trichogramma sp. was recorded on invasive fall armyworm, Spodoptera frugiperda (J.E. Smith) infesting maize in Karnataka. Based on the present work, there could be choice of selecting right species which occur naturally on individual crops.

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“…Apresenta eficácia no parasitismo de várias espécies de importância agrícola, principalmente lepidópteros praga, contribuindo para a redução de danos provocados às culturas implantadas em campo (PINTO 2006;QUERINO et al, 2010;COELHO JR et al, 2016;SIGSGAARD et al, 2017). (MAGALHÃES et al 2012;QUERINO et al, 2016QUERINO et al, , 2017OLIVEIRA et al, 2020).…”

Section: Introductionunclassified

Aplicação Das Rotas Tecnológicas Como Método De Planejamento E Gestão Tecnológica Nos Institutos De Inovação E Tecnologia Focados Em Quimica E Meio Ambiente Da Federação Das Industrias Do Rio De Janeiro No Brasil

Giordano¹,

Ribeiro²,

Jesus³

2021

Sustentabilidade E Meio Ambiente: Rumos E Estratégias Para O Futuro

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Natural parasitism by Trichogramma spp. in agroecosystems of the Mid-North, Brazil

Abstract: The micro-hymenopterans of genus

Cited by 12 publications

References 2 publications

Influência da idade do hospedeiro e da aprendizagem no comportamento quimiotáxico e no parasitismo de Trichogramma pretiosum

Influência da idade do hospedeiro e da aprendizagem no comportamento quimiotáxico e no parasitismo de Trichogramma pretiosum

Natural parasitism by trichogrammatids (Hymenoptera: Trichogrammatidae) on lepidopteran eggs under diverse cropping system

Aplicação Das Rotas Tecnológicas Como Método De Planejamento E Gestão Tecnológica Nos Institutos De Inovação E Tecnologia Focados Em Quimica E Meio Ambiente Da Federação Das Industrias Do Rio De Janeiro No Brasil

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