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| Registros recuperados: 31 | |
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| Specht,Alexandre; Guedes,Jerson V.C.; Sulzbach,Felipe; Vogt,Tatiane G.. |
| É registrada pela primeira vez a ocorrência de Rachiplusia nu (Guenée) em Nicotiana tabacum L. (Solanaceae). Os espécimes foram coletados em uma lavoura de fumo tipo Virgínia, em Venâncio Aires, RS. As lagartas ocorreram em grande número, causando expressivo desfolhamento das plantas e demandando controle químico para minimizar os danos. Essa ocorrência indica que R. nu pode se alimentar de fumo, do tipo Virgínia, que ocupa 80% da área cultivada com fumo no Rio Grande do Sul, apresentando, portanto, o risco de se tornar uma praga importante dessa cultura. |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Insecta; Plusiinae; Falsa-medideira; Lagarta. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2006000500020 |
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| Specht,Alexandre; Vogt,Tatiane G.; Corseuil,Elio. |
| Autoplusia egena (Guenée) is a moth distributed throughout the Western hemisphere. The larvae have already been found feeding on several different plant families, including important crops such soybeans and beans. To contribute to the knowledge of its biology in laboratory conditions, and considering the duration and the morphometry of each development stage, a laboratorial rearing was accomplished at 25 ± 1°C, 70 ± 10% RH and 14h photophase. The larvae were fed with black bean leaves and the adults were fed with a honey solution at 10%. The results, expressed by the mean (± SE), for the periods of each stage were: egg 3.0 ± 0.00 d; larva 15.7 ± 1.25 d; pre-pupa 1.9 ± 0.05 d; pupa 8.8 ± 0.09 d and adult: longevity 12.1 ± 0.95 d, pre-oviposition 5.4 ± 0.50... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Development; Insect; Morphometric; Phaseolus vulgaris; Semi-looper. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2007000100001 |
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| Specht,Alexandre; Sosa-Gómez,Daniel Ricardo; Paula-Moraes,Silvana Vieira de; Yano,Silvia Akimi Cavaguchi. |
| O objetivo deste trabalho foi descrever métodos para a caracterização morfológica e molecular de Helicoverpa armigera e ampliar o registro de ocorrência da praga no Brasil. As mariposas foram obtidas de lagartas coletadas nas culturas de algodão, milho e soja, com uso de armadilhas luminosas. As coletas foram realizadas na Bahia, no Distrito Federal, no Mato Grosso e no Paraná. A identificação foi baseada na genitália masculina e nas análises das sequências dos genes mitocondriais do citocromo B e da região cox1-tRNALeu-cox2. A genitália masculina foi comparada com as descrições morfológicas na literatura, e as sequências de genes, com as depositadas no GenBank. Ambas as análises confirmaram a presença de H. armigera nos locais de coleta. Ampliou-se o... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Código de barras de DNA; Lagarta polífaga; MtDNA; Praga quarentenária. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000600015 |
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| Specht,Alexandre; Corseuil,Elio. |
| Os noctuídeos constituem as principais pragas fitófagas de gramíneas e decisões sobre seu controle baseiam-se em porcentuais de desfolhamento, desconsiderando o grau de incidência da praga. Este estudo objetivou testar a rede de varredura na avaliação das populações de Noctuidae e principais grupos de inimigos naturais, em azevém (Lolium multiflorum Lam.), nos turnos da manhã e da noite. O trabalho foi conduzido em duas lavouras, em Salvador do Sul, RS. Realizou-se um experimento com coletas semanais e outro, complementar, com coletas em cada fase de desenvolvimento do azevém, mantendo criação laboratorial. No primeiro, foram coletadas 2.044 lagartas, das quais somente 151 foram coletadas no período matinal; à noite foram detectadas diferenças estatísticas... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lolium multiflorum; Noctuidae; População de insetos; Manejo integrado de pragas. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2002000100001 |
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| Santos,Sabrina Raisa dos; Specht,Alexandre; Carneiro,Eduardo; Paula-Moraes,Silvana Vieira de; Casagrande,Mirna Martins. |
| Abstract Chrysodeixis includens (Walker, [1858]) is currently the main plusiine pest in the Americas, not only because of the damage caused to soybean, but also with several crop species in a broad geographical range. However, its population dynamics is still poorly understood, despite outbreak records that are common across different locations in the Americas. The current study aimed at identifying phenological patterns of C. includens emphasizing its differences among the three years of sampling effort in an intercropping area of the Brazilian Savanna. Thereafter, we tested whether the El Niño size effect, meteorological factors, or soybean, corn and wheat cycles, are better predictors of its monthly abundance. The insects were collected with a light... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Circular statistics; Phenology; Pest-species; Population outbreaks; Soybean phenology. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262017000400294 |
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| Teston,José Augusto; Specht,Alexandre; Di Mare,Rocco Alfredo; Corseuil,Elio. |
| Arctiinae (Lepidoptera, Arctiidae) coletados em unidades de conservação estaduais do Rio Grande do Sul, Brasil. O presente estudo foi realizado com o objetivo de analisar a composição das comunidades de Arctiinae no Parque Estadual do Espigão Alto (Barracão), Parque Estadual de Rondinha (Sarandí), Parque Estadual do Turvo (Derrubadas) e na Reserva Biológica de Ibirapuitã (Alegrete). Dez armadilhas luminosas foram utilizadas para coletar os lepidópteros, de novembro de 2000 a fevereiro de 2001, amostrando-se uma noite em cada local. Os lepidópteros foram identificados aos níveis de subfamília, tribo e, quando possível gênero e espécie. Obteve-se um total de 5.969 arctiíneos pertencentes a 137 morfo espécies, distribuidos em seis tribos. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Armadilha luminosa; Biodiversidade; Estrutura da comunidade; Inventariamento de fauna. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262006000200010 |
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| Montezano,Débora Goulart; Specht,Alexandre; Sosa-Gómez,Daniel Ricardo; Roque-Specht,Vânia Ferreira; Barros,Neiva Monteiro de. |
| Biotic potential and reprodutcive parameters of Spodoptera eridania (Stoll) (Lepidoptera, Noctuidae) in the laboratory: This study aimed to evaluate the biotic potential and reproductive parameters of Spodoptera eridania (Stoll, 1782) under controlled conditions (25 ± 1ºC, 70 ± 10% RH and 14 hour photophase). The longevity, pre-, post- and oviposition periods, fecundity and fertility of 15 couples was evaluated. The longevity of females (10.80 days) was not significantly higher than those of males (9.27 days). The mean durations of the pre, post and oviposition periods were 2.067, 0.600 and 8.133 days, respectively. The mean fecundity per female was 1,398 eggs and the mean fertility was 1,367.50 larvae. On average, females copulated 1.133 times. A strong... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Armyworm; Development; Insecta; Reproduction; Spermatophore. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262013000300014 |
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| Fonseca-Medrano,Magaly; Specht,Alexandre; Silva,Fernando Antônio Macena; Otanásio,Pollyanna Nunes; Malaquias,Juaci Vitória. |
| ABSTRACT The owlet moths (Lepidoptera: Noctuidae) Anicla infecta (Ochsenheimer 1816), Elaphria agrotina (Guenée 1852) and Spodoptera frugiperda (J.E. Smith 1797) occur in the entire American continent. These polyphagous moths have a preference for grasses, and have different biological habits. In this study, the populations of these three species were evaluated monthly with light traps in the Brazilian Savannah, ranging a span of four crop seasons (from July, 2013 to June, 2017). The population data were analyzed and correlated with the meteorological variables: maximum temperature, minimum temperature, relative humidity and precipitation. A total of 4719 individuals were collected in the following percentages: A. infecta (n = 459; 9.73%), E. agrotina (n =... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agricultural pests; Anicla infecta; Elaphria agrotina; ENSO; Spodoptera frugiperda. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262019000400308 |
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| Sosa-Gómez,Daniel R.; Specht,Alexandre; Paula-Moraes,Silvana V.; Lopes-Lima,Adilson; Yano,Silvia A.C.; Micheli,Adriana; Morais,Elisangela G.F.; Gallo,Paulo; Pereira,Paulo R.V.S.; Salvadori,José R.; Botton,Marcos; Zenker,Maurício M.; Azevedo-Filho,Wilson S.. |
| ABSTRACT This study presents registers of Helicoverpa armigera (Hübner) occurrence to assess its spatial and temporal distribution in Brazil. We used data from collections, especially from the Southern Region, systematic collections in Rio Grande do Sul, occasional collections of caterpillars and adults in different regions of Brazil, as well as literature registers. We conclude that the introduction of H. armigera in Brazil probably occurred before October 2008. We also register that in August 2012 H. armigera was already present from the extreme southern part (Rio Grande do Sul) to the extreme northern part (Amapá) of Brazil. |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Old World bollworm; Polyphagous caterpillar; Geographical distribution. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262016000100101 |
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| Specht,Alexandre; Azevedo,João Lúcio; Lima,Elza Áurea de Luna Alves; Boldo,Juliano Tomazzoni; Martins,Mayra Kassawara; Lorini,Lisete Maria; Barros,Neiva Monteiro. |
| Este fungo foi isolado pela primeira vez de lagartas de L. obliqua de uma agregação em plátano (Platanus acerifolia (Aiton) Wild - Platanaceae), em Bento Gonçalves, RS, Brasil. Após isolamento, purificação e caracterização, realizou-se um teste de patogenicidade com lagartas sadias de L. obliqua para corroborar, sua infectividade pelo postulado de Koch. Constatou-se correspondência morfológica e molecular entre o inóculo e o reisolado, comprovando sua patogenicidade a L. obliqua. |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Controle biológico; Inimigos naturais; Lagartas urticantes. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262009000300029 |
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| Specht,Alexandre; Teston,José Augusto; Di Mare,Rocco Alfredo; Corseuil,Elio. |
| O objetivo deste estudo foi analisar a composição das comunidades de Noctuidae na Reserva Biológica do Ibirapuitã (Alegrete) e nos Parques Estaduais do Turvo (Derrubadas), Rondinha (Sarandi) e Espigão Alto (Barracão). Dez armadilhas luminosas foram utilizadas para coletar os insetos, de novembro de 2000 a fevereiro de 2001, amostrando-se uma noite por local. Os lepidópteros foram identificados aos níveis de família, subfamília e, quando viável, até espécie. Foram coletados 6.374 noctuídeos pertencentes a 249 táxons, distribuídos em 17 subfamílias. Os resultados indicam a existência de número maior de noctuídeos no Estado e a importância das Unidades Estaduais de Conservação para a manutenção da biodiversidade. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Armadilha luminosa; Biodiversidade; Estrutura da comunidade; Inventariamento de fauna. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262005000100015 |
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| Ferreira,Tamara Esteves; Faleiro,Fábio Gelape; Junqueira,Nilton Tadeu Vilela; Camargo,Amabílio Jose Aires de; Teston,José Augusto; Specht,Alexandre. |
| Abstract Brazil is considered the center of origin and diversity of passifloras. These species have a great importance to in natura fruits consumption, industrialization, medicinal use and also as ornamental plants. The different Passiflora speciesare host of a great diversity of arthropods that can cause injuries, economic damages and, in some situations, the plant death. Among the arthropods, leafhopper caterpillars are considered frequent and severe pests in the main passion fruit producing regions. The present work is an occurrence report of Isia alcumena and Spodoptera cosmioides attacking passion fruit plants (Passiflora edulis Sims) in the Federal District, Brazil. The S. cosmioides and S. eridania caterpillars were collected while consuming leaves... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Insecta; Polyphagous larvae; Passion fruit; Owlet moths; Occasional pests. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000500407 |
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| Montezano,Débora G.; Sosa-Gómez,Daniel R.; Paula-Moraes,Silvana V.; Roque-Specht,Vânia F.; Fronza,Edegar; Barros,Neiva M.; Specht,Alexandre. |
| ABSTRACT The biotic potential and reproductive parameters of Spodoptera dolichos (Fabricius, 1794) were evaluated under controlled conditions (25 ± 1°C, 70 ± 10% RH and 14 hour photophase). The longevity, pre-, post- and oviposition periods, fecundity, and fertility of 25 couples were evaluated. The longevity of females (12.9 days) was not significantly different than that of males (12.4 days). The mean durations of the pre-, post- and oviposition periods were 3.0, 0.4 and 10.4 days, respectively. The mean fecundity was 4,086.0 eggs per female and mean fertility was 3,557.8 larvae per female. On average, a female copulated 1.4 times. The biotic potential of S. dolichos was estimated at 7.138 x 1018 individuals/female/year. The net reproductive rate (Ro)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Armyworm; Development; Fecundity; Reproduction; Spermatophore. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000600485 |
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| Specht,Alexandre; Formentini,Aline C.; Benedetti,Augusto J.. |
| The goal of this contribution was to study the biology and morphology of all developmental stages of Molippa cruenta (Walker, 1855), a member of Hemileucinae (Saturniidae), endemic to southern Brazil and northeastern Argentina. Daily observations were carried out on individuals reared under controlled temperature (25 ± 1ºC), relative humidity (70 ± 10%) and photophase (14 hours of light). The duration and viability of each developmental phase, as well as morphological and behavioral aspects of each stage, were evaluated. Under laboratory conditions, the life-cycle of M. cruenta was completed in 150 days, with mean periods for egg, larva, pupa and adult phases being 35, 71.95, 37.85, 19.17 and 4.81 days, respectively. The larval phase included six instars,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Developmental biology; Hemileucinae; Larvae; Life-cycle. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000300005 |
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| Zenker,Mauricio M.; Specht,Alexandre; Fronza,Edegar; Poletto,Graziela; Marcon,Fernanda; Formentini,Aline C.; Gedoz,Mateus. |
| The life-history and biology of Dirphia araucariae Jones, 1908, including its life fertility table, are here described. Moths were reared in the laboratory under controlled conditions on their host plant, Araucaria angustifolia (Bertoloni) O. Kuntze - Araucariaceae. We describe several life-history traits of the species, namely: developmental period, survival rate, growth rate, fertility, fecundity, sex ratio, cephalic capsule width, and pupal weight. Mean duration of life stages were: egg = 26.78 days; larva = 61.78 days; prepupa = 6.85 days; pupa = 62.46 days; adult = 8.37 days. We found statistically significant differences between sexes for adult, larval and pupal stage duration; larval stage was longer in females while pupal stage was longer in males.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Atlantic Forest; Conservation biology; Developmental biology; Forest entomology; Pinheiro-do-Paraná; South America. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702013000200004 |
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| Specht,Alexandre; Angulo,Andrés O.; Olivares,Tania S.; Fronza,Edegar; Roque-Specht,Vânia F.; Valduga,Eduardo; Albrecht,Francine; Poletto,Graziela; Barros,Neiva M.. |
| This study describes the life cycle of Agrotis malefida Guenée, 1852 (Noctuidae: Noctuinae) under laboratory conditions. The insects were reared in a controlled environment (25 ± 1ºC, 70 ± 10% RH and 14 hours photo phase) and observed daily. The larvae were fed Greene's artificial diet and adults were offered a 10% sucrose solution. The viability and duration of immature stages were assessed. The experiment initiated with 2,410 eggs. Larvae were isolated shortly after hatching. Longevity, pre-, post- and oviposition, fecundity and fertility of 13 adult couples were also evaluated. The viability of eggs, larvae, pupae and pre-pupae was 96.72, 91.25, 78.37 and 95.26%, respectively. The average duration of egg, larva, pre-pupa, pupa and adult was 7.93, 54.26,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bionomy; Caterpillar; Development; Diapause. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702013000400002 |
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| Moreira,Gilson R.P.; Pereira,Cristiano M.; Becker,Vitor O.; Specht,Alexandre; Gonçalves,Gislene L.. |
| ABSTRACT Larvae of many-plumed moths (Alucitidae), especially in the world-wide genus Alucita Linnaeus, 1758 are known as borers or gall-inducers on flowers, fruits and shoots of a few dicotyledonous families, including Bignoniaceae, Caprifoliaceae and Rubiaceae. However, there is no study available on the biology of the monotypic, Neotropical genus Prymnotomis Meyrick, 1931 except for its original description that was based on a single male, the holotype of Prymnotomis crypsicroca Meyrick, 1931 from Espirito Santo, Brazil. We describe here a second species for this genus, Prymnotomis cecidicola sp. nov. whose larvae induce galls on Cordiera elliptica (Cham.) Kuntze (Rubiaceae), a dioecious plant with dimorphic inflorescences found in the Brazilian... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alucitid moths; Brazilian Savanna; Insect galls; Prymnotomis; Taxonomy. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702019000100331 |
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| Specht,Alexandre; Corseuil,Elio; Benedetti,Augusto J.; Poletto,Graziela; Formentini,Aline C.. |
| The goal of this work was to describe aspects of the biology and morphology of Leucanella viridescens (Walker, 1855), a polyphytophagous species that is a pest to several crops of economical interest and whose larvae may cause erucism. Biological parameters were obtained under controlled conditions: temperature of 25 ± 1ºC, relative humidity of 70 ± 10%, and a 14 h photophase. Morphological and behavioral aspects were analyzed in each developmental phase. The larval stage had six instars, with an average growth rate of 1.396. A high degree of polyphytophagy was observed, including over 49 host plant species belonging to 25 families, especially Leguminosae, Solanaceae and Salicaceae. The considerable chromatic variability of the adults obtained from the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Caterpillars; Chromatic variation; Erucism; Life cycle; Morphology. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000100005 |
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| Registros recuperados: 31 | |
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