Acrididae
Mostrando 13-24 de 53 artigos, teses e dissertações.
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13. Efeitos do sistema de plantio e da consorciação soja-milho sobre artrópodes capturados no solo.
O objetivo deste estudo foi avaliar os efeitos do plantio direto e da consorciação soja [Glycine max (L.) Merrill] e milho (Zea mays L.) sobre artrópodes que vivem no solo. Os tratamentos constituíram um fatorial 3 x 2 (monocultura de soja, monocultura de milho, consorciação soja-milho x plantio direto, plantio convencional) em blocos casualizados com
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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14. Characterization of a Peruvian isolate of Metarhizium anisopliae var. acridum, a pathogen of grasshoppers.
The objective of this study was to characterize the Peruvian isolate of Metarhizium anisopliae var. acridum, CG 863, obtained from the grasshopper Schistocerca interrita, a crop pest in Peru. The characterization was done by comparing this isolate with two other ones of M. anisopliae var. acridum, from Brazil and Australia, and with an isolate of M. anisopli
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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15. Polymorphism of the grasshopper Rhammatocerus schistocercoides populations revealed by RAPD.
The objective of this work was to study the genetic variability of the grasshopper Rhammatocerus schistocercoides (Orthoptera: Acrididae) using RAPD analysis among individuals from three populations, one from Colombia and two from Brazil (Goiás and Mato Grosso States). Ninety scorable binary markers were obtained by fingerprinting with 11 oligonucleotide pr
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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16. Chromosome study in Schistocerca (Orthoptera-Acrididae-Cyrtacanthacridinae): karyotypes and distribution patterns of constitutive heterochromatin and nucleolus organizer regions (NORs).
Chromosome analyses were performed in two grasshopper species of the genus Schistocerca, S. pallens and S. flavofasciata. Both species shared the same diploid number (2n = 23, X in males; 2n = 24, XX in females); and a con- served karyotype composed exclusively of acrocentric chromosomes but differed in their distribution patterns of constitutive heterochrom
Genetics and Molecular Biology. Publicado em: 2011
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17. Comparative cytogenetic analysis of two grasshopper species of the tribe Abracrini (Ommatolampinae, Acrididae)
The grasshopper species Orthoscapheus rufipes and Eujivarus fusiformis were analyzed using several cytogenetic techniques. The karyotype of O. rufipes, described here for the first time, had a diploid number of 2n = 23, whereas E. fusiformis had a karyotype with 2n = 21. The two species showed the same mechanism of sex determination (XO type) but differed in
Genetics and Molecular Biology. Publicado em: 2011
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18. Effect of two dosages of Metarhizium anisopliae var. acridum against Rhammatocerus schistocercoides Rehn.
The fungs Metarhizizium anisopliae var. acridum, strain CG 423, was tested under fiel conditions against the gregarious grasshopper Rhannatocerus schistocercoides (Rehn) (Orthoptera: Acrididae). Conidia formulated in a rancemic mixture of soybean oil and kerosene were sprayed under field conditions using na ultralow-volume hand-held atomizer Ulva Plus adjust
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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19. Effect of two dosages of Metarhizium anisopliae var. acridum against Rhammatocerus schistocercoides Rehn.
The fungus Metarhizium anisopliae var. acridum, strain CG 423, was tested under field conditions against the gregarious grasshopper Rhammatocerus schistocercoides (Rehn) (Orthoptera: Acrididae). Conidia formulated in a racemic mixture of soybean oil and kerosene were sprayed under field conditions using an ultralow-volume hand-held atomizer Ulva Plus adjuste
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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20. El comportamiento acústico de Fenestra bohlsii Giglio-Tos (Orthoptera: Acrididae: Gomphocerinae)
The acoustic behavior of Fenestra bohlsii Giglio-Tos is described for the first time. The sounds and behaviors were observed and registered in captivity. The signals were digitized with the Sound-Blaster AWE64 Gold program and analysed with the Avisoft SAS Lab Pro 30 PC for MS Windows software. Seven different types of sounds are described as produced by mal
Neotropical Entomology. Publicado em: 2010-12
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21. Fenologia de Cornops aquaticum (Bruner) (Orthoptera: Acrididae) em Eichhornia azurea (Pontederiaceae) no norte do Pantanal de Mato Grosso
Cornops aquaticum (Bruner) has Eichhornia crassipes, E. azurea, Pontederia cordata and P. lanceolata (Pontederiaceae) as the known host plants. This grasshopper species is cited as a possible agent of biological control for native aquatic macrophytes E. azurea and E. crassipes. This study, carried out from March, 2006 to February, 2007, aimed to evaluate the
Neotropical Entomology. Publicado em: 2010-08
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22. Variação do peso fresco em Cornops aquaticum (Bruner) (Orthoptera, Acrididae) associado a Eichhornia azurea (Sw) Kunth (Pontederiaceae) em uma baía no Pantanal de Poconé, Mato Grosso
Variação do peso fresco em Cornops aquaticum (Bruner) (Orthoptera, Acrididae) associado a Eichhornia azurea (Sw) Kunth (Pontederiaceae) em uma baía no Pantanal de Poconé, Mato Grosso. Cornops aquaticum (Bruner, 1906) (Orthoptera, Acrididae) desenvolve seu ciclo de vida sobre macrófitas aquáticas da família Pontederiaceae. Como os gafanhotos são capaz
Revista Brasileira de Entomologia. Publicado em: 2010-03
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23. Metaphase I orientation of Robertsonian trivalents in the water-hyacinth grasshopper, Cornops aquaticum (Acrididae, Orthoptera)
Trivalents resulting from polymorphic Robertsonian rearrangements must have a regular orientation in metaphase I if the polymorphisms are to be maintained. It has been argued that redistribution of proximal and interstitial chiasmata to more distal positions is necessary for a convergent orientation, the only one that produces viable gametes. Cornops aquatic
Genetics and Molecular Biology. Publicado em: 23/01/2009
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24. AnÃlise cariotÃpica, heterocromatina constitutiva e frequÃncia de expressÃo das RONs em duas espÃcies de Melanoplinae (Orthoptera: Acrididae)
A subfamÃlia Melanoplinae constitui um grupo de gafanhotos com a maior diversidade cariotÃpica dentro de Acrididae. O objetivo principal deste trabalho foi estudar cromossomos meiÃticos dos melanoplÃneos Baeacris punctulatus e Dichroplus fuscus atravÃs de diferentes tÃcnicas citogenÃticas. Baeacris punctulatus e D. fuscus apresentaram os cariÃtipos 2
Publicado em: 2009