Distribution and Natural Parasitism of Spodoptera Frugiperda (Lepidoptera: Noctuidae) Eggs at Different Phenological Stages of Corn

Beserra, Eduardo B.; Dias, Carlos Tadeu dos Santos; Parra, JosE Roberto Postali

doi:10.1653/0015-4040(2002)085[0588:danpos]2.0.co;2

Cited by 50 publications

(28 citation statements)

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“…It is important to consider that not only S. cosmioides, but also other species of the Spodoptera complex have increased their importance on crops such as soybean, corn and cotton. Another noticeable issue is that T. remus can effectively parasitize the inner layers of the egg masses (Cruz & Figueiredo 1994), whereas the parasitoids from the Trichogramma genus are able to parasitize only the outer layers (Beserra et al 2002). Therefore, T. remus can be considered as an efficient biocontrol agent of S. frugiperda eggs (Johnson 1984), as well as of the other species of Spodoptera that lay eggs in layered clusters, such as S. cosmioides.…”

Section: Resultsmentioning

confidence: 99%

Host preference of the egg parasitoids Telenomus remus and Trichogramma pretiosum in laboratory

Goulart¹,

Bueno²,

Bueno³

et al. 2011

Rev. Bras. entomol.

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Host preference of the egg parasitoids Telenomus remus and Trichogramma pretiosum in laboratory. This research aimed to evaluate the host preference of the egg parasitoids Telenomus remus and Trichogramma pretiosum. Trials were carried out in laboratory, under controlled environmental conditions (25 ± 2ºC temperature; 70 ± 10% RH; and 14 h photophase). The parasitoid searching behavior was evaluated based on the distribution (%) of eggs parasitized by each parasitoid, on egg masses of each host species. Results showed the host preference of T. remus by Spodoptera cosmioides eggs. T. pretiosum, reared in A. gemmatalis eggs, choose to parasitize always eggs of the host where the parasitoid had been reared. The egg preference was not observed when T. pretiosum was reared in S. frugiperda eggs. These results show that, in general, host preference of T. remus is less influenced by the host where it is developed than T. pretiosum. Host preference is an important parameter for biological control programs because more than one pest species may occur in the field, different from those where they were reared in the laboratory.
Preferência hospedeira dos parasitoides de ovos Telenomus remus e Trichogramma pretiosum em laboratório. Este trabalho objetivou avaliar a preferência hospedeira dos parasitóides de ovos Telenomus remus e Trichogramma pretiosum. Os experimentos foram conduzidos em laboratório, sob condições controladas (temperatura de 25 ± 2ºC; umidade relativa de 70 ± 10%; e fotofase de 14 horas). O comportamento de busca dos parasitóides foi avaliado através da distribuição (%) de ovos parasitados por espécie de parasitóide, em massas de ovos de cada hospedeiro na combinação estudada. Os resultados mostraram que T. remus preferiu parasitar ovos de S. cosmioides. T. pretiosum, criados em ovos de A. gemmatalis, preferiu parasitar sempre os ovos dos hospedeiros nos quais foram multiplicados. Essa preferência não foi observada quando T. pretiosum foi multiplicado em ovos de S. frugiperda. Esses resultados mostram que, em geral, a preferência hospedeira de T. remus é menos influenciada em relação a T. pretiosum pelo hospedeiro em que o parasitóide se desenvolveu. A preferência hospedeira é um importante parâmetro a ser considerado em programas de controle biológico porque em condições de campo mais de uma espécie praga pode estar presente, diferente daquela em que foi criado em laboratório

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Section: Resultsmentioning

confidence: 99%

Host preference of the egg parasitoids Telenomus remus and Trichogramma pretiosum in laboratory

Goulart¹,

Bueno²,

Bueno³

et al. 2011

Rev. Bras. entomol.

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“…There have been surveys for natural enemies of fall armyworm in the USA (Hogg et al 1982;Ashley 1986;Meagher et al 2016), Mexico and Central America (Castro & Pitre 1989;Molina-Ochoa et al 2003), and South America (Beserra et al 2002;Murúa et al 2009). Although some species exist throughout the Western Hemisphere, most species' distribution generally is defined by their geographic areas (Ashley 1979).…”

Section: Palabras Claves: Control Biológico; Cotesia Bifoveolatus; Phmentioning

confidence: 99%

Natural Enemies of the Fall Armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) in Ghana

Koffi

Kyerematen

Eziah

et al. 2020

Florida Entomologist

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“…The presence of Trichogramma atopovirilia Oatman & Platner, 1983 parasitizing eggs of that pest in corn crops demonstrates the potential of use of this parasitoid for the control of S. frugiperda (Zucchi et al, 1991;Alvarez & Roa, 1995;Zucchi & Monteiro, 1997;Beserra et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

“…However, it has been observed that S. frugiperda egg masses parasitized by Trichogramma under field conditions are rare (Rueda & Victoria, 1993); some authors have questioned its use as a control agent, due to the fact that the eggs of the pest are arranged in superimposed layers, and to the presence of scales that make the parasitoid action harder (Toonders & Sánchez, 1987;Sifontes et al, 1988;Armas & Ayala, 1993;Beserra et al, 2002). Beserra et al (2002) observed a low parasitism (2.21%) of S. frugiperda eggs in corn; the species Trichogramma pretiosum Riley, 1879 was the most abundant and occurred in 93.79% of the samples, while T. atopovirilia only represented 2.07%. Even in young rice plants, where egg masses are relatively small, parasitism by Trichogramma is difficult, since only 20 to 40% of the eggs are accessible for parasitism (Sifontes et al, 1988).…”

Section: Introductionmentioning

confidence: 99%

“…More in-depth studies on the role and importance of Trichogramma species found on S. frugiperda eggs are required, so that a suitable species can be selected to be multiplied in the laboratory, aiming at the biological control of this pest. Therefore, due to the necessity of finding an alternative for the chemical control of this pest, the objective of this research was to evaluate the impact of egg layer distribution in S. frugiperda egg masses on the parasitism capacity of T. atopovirilia, a parasitoid of this pest, which, although less frequent in the field, is superior to T. pretiosum in laboratory tests (Beserra et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

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Impact of the number of Spodoptera frugiperda egg layers on parasitism by Trichogramma atopovirilia

Beserra

Parra²

2005

Sci. agric. (Piracicaba, Braz.)

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Egg parasitoids of the genus Trichogramma (Hymenoptera: Trichogrammatidae) can be found in several crops attacking Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae) eggs. It is therefore necessary to demonstrate the capacity of these natural enemies in suppressing populations of the pest to allow them to be used in biological control programs against that species. This work had the objective of evaluating the impact of egg layer distribution in S. frugiperda egg masses on the parasitism capacity of Trichogramma atopovirilia Oatman & Platner, 1983. Masses containing one, two, and three layers were used as treatments, and 1.6 parasitoid per egg of the pest were released. Parasitism percentage differences were observed among the three types of masses under study, on average 66.24 ± 8.56%, 45.20 ± 6.20%, and 40.10± 3.46% for egg masses with one, two, and three layers, respectively, demonstrating the potential of use of the parasitoid for the control of fall armyworm. Key words: Insecta, fall armyworm, egg parasitoid, biological control IMPACTO DO NÚMERO DE CAMADAS DE OVOS DE Spodoptera frugiperda NO PARASITISMO POR Trichogramma atopoviriliaRESUMO: Parasitóides de ovos do gênero Trichogramma (Hymenoptera: Trichogrammatidae) ocorrem em diversas culturas atacando ovos de Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae) sendo necessário que se demonstre a capacidade desses inimigos naturais em suprimir a população da praga para que eles possam ser utilizados em programas de controle biológico daquela espécie. O trabalho teve como objetivo avaliar o impacto da distribuição dos ovos em camadas nas posturas de S. frugiperda sobre a capacidade de parasitismo de Trichogramma atopovirilia Oatman & Platner, 1983. Foram utilizadas como tratamentos posturas com uma, duas e três camadas e liberado 1.6 parasitóide por ovo da praga. Observaram-se diferenças quanto à porcentagem de parasitismo entre os três tipos de posturas estudados, sendo em média de 66,24 ± 8,56%, 45,20 ± 6,20% e 40,10 ± 3,46% para posturas com uma, duas e três camadas respectivamente, mostrando o potencial de utilização do parasitóide para o controle da lagarta-do-cartucho do milho. Palavras-chave: Insecta, lagarta-do-cartucho-do-milho, parasitóide de ovos, controle biológico

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Distribution and Natural Parasitism of Spodoptera Frugiperda (Lepidoptera: Noctuidae) Eggs at Different Phenological Stages of Corn

Abstract: BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Cited by 50 publications

References 10 publications

Host preference of the egg parasitoids Telenomus remus and Trichogramma pretiosum in laboratory

Host preference of the egg parasitoids Telenomus remus and Trichogramma pretiosum in laboratory

Natural Enemies of the Fall Armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) in Ghana

Impact of the number of Spodoptera frugiperda egg layers on parasitism by Trichogramma atopovirilia

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