Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 3
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Characterization of a Peruvian isolate of Metarhizium anisopliae var. acridum, a pathogen of grasshoppers. Repositório Alice
MAGALHÃES, B.P.; TIGANO, M.S.; MARTINS, I.; FRAZÃO, H.; RAMIREZ, H.G..
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. anisopliae var. anisopliae. The three M. anisopliae var. acridum isolates had similar growth profiles in agar plates at 25°C and 37°C, and similar RAPD patterns according to the analysis of three primers. However, regarding these parameters and conidial size, these isolates were very distinct when compared to M. anisopliae var. anisopliae isolate. Bioassays indicated that the Peruvian isolate is as pathogenic...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Acrididae; Inseto; Fungo entomopatogênico; Combate às pragas; Insecta; Entomopathogenous fungi; Pest control.
Ano: 2003 URL: http://www.alice.cnptia.embrapa.br/handle/doc/109698
Imagem não selecionada

Imprime registro no formato completo
Effect of two dosages of Metarhizium anisopliae var. acridum against Rhammatocerus schistocercoides Rehn. Repositório Alice
FARIA, M.R. de; MAGALHÃES, B.P.; ALVES, R.T.; SCHMIDT, F.G.V.; SILVA, J.B.T. da; FRAZÃO, H..
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 adjusted to deliver 2.9 L/ha. Bands composed of 2nd instar nymphs were treated with either 5.0x1012 or 1.0x1013 viable conidia/ha. The number of insects in each band was estimated at day one following spraying and by the end of the field trial (15 to 16 days post-treatment). Reductions in population size reached, in average, 65.8% and 80.4% for bands treated with the higher and lower dosage, respectively. For...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Biological control; Microbial pesticide; Entomogenous fungus; Grasshopper; Oil formulation; Controle biológico; Pesticida microbiano; Fungo entomopatogênico; Gafanhoto; Formulação oleosa.
Ano: 2002 URL: http://www.alice.cnptia.embrapa.br/handle/doc/108797
Imagem não selecionada

Imprime registro no formato completo
Polymorphism of the grasshopper Rhammatocerus schistocercoides populations revealed by RAPD. Repositório Alice
SILVA, J.B.T. da; TIGANO, M.S.; MAGALHÃES, B.P.; CORDEIRO, C.M.T..
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 primers. Most of the polymorphism was attributed to 42 markers with variable frequency among the different populations. Although the existence of significant difference among populations (P<0.0001), most of the genetic variability was found within populations (87.7% of total variation). Pairwise distances between Colombian and Brazilian populations were 0.12 (P<0.0001) and 0.18 (P<0.0001) for...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Insecta; Genetic marker; Genetic variation; Genetic distance; Marcador genético; Variação genética; Distância genética.
Ano: 2002 URL: http://www.alice.cnptia.embrapa.br/handle/doc/108815
Registros recuperados: 3
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional