|
|
|
|
|
| Negrete García, Román. |
| Las gallinas ciegas se encuentran entre las plagas de suelo de mayor importancia económica en el mundo, incluyendo México. Considerando que el suelo es el ambiente más favorable para los nematodos entomopatógenos (NEP), es posible recuperar aislamientos de NEP que puedan tener el potencial para ser desarrollados como agentes de control biológico de esta plaga. Por esta razón se llevó a cabo un muestreo en el estado de Guanajuato, una de las regiones agrícolas más importantes de México. La colecta de nematodos se realizó utilizando larvas de Galleria mellonella como cebo en lugares con grandes poblaciones de gallina ciega. Los nematodos obtenidos se identificaron utilizando métodos morfológicos y moleculares. Después, la susceptibilidad de la gallina ciega... |
|
Palavras-chave: Gallina ciega; Steinernema; Muestreo; Susceptibilidad; White grub; Survey; Susceptibility; Entomología y Acarología; Maestría. |
| Ano: 2013 |
URL: http://hdl.handle.net/10521/1851 |
| |
|
| |
|
|
| Leite,Luís G.; Machado,Laerte A.; Goulart,Roberto M.; Tavares,Fernando M.; Batista Filho,Antonio. |
| The pathogenicity of six entomopathogenic nematodes was assessed against nymphs of the sugarcane root spittlebug Mahanarva fimbriolata (Fabr.), in the laboratory. The efficiency of the most virulent agent was tested in the field. Seven laboratory treatments were designed with two specimens of the genus Heterorhabditis, three of Steinernema, one specimen of Steinernema glaseri (Steiner), and a control group. In the field, two experiments were conducted. The first experiment involved nine treatments: the control, four treatments with Heterorhabditis sp. (CB-n5) applied to the straw mulch at doses 6.6 x 10(7), 3.3 x 10(8), 6.6 x 10(8) and 3.3 x 10(9) IJs/ha, and four treatments with the nematodes applied to the soil and beneath the straw mulch layer, at the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Steinernema; Biological control; Integrated pest management. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2005000500010 |
| |
|
|
| Andaló,Vanessa; Cavalcanti,Ricardo Sousa; Molina,Juan Pablo; Moino Jr.,Alcides. |
| The survival of entomopathogenic nematodes under laboratory conditions is low. With the aim of evaluating substrates to extend the survival of entomopathogenic nematodes, suspensions of Heterorhabditis sp. JPM4 and Steinernema carpocapsae All (3,000 IJ mL-1) were added to dirt, fine sand, coarse sand, foam, expanded clay, phenolic foam, agar, corn starch, Plantmax®, and water. The substrates were placed on Petri dishes (5 cm) and kept at 16 ± 1°C. Survival evaluations were made after 30, 60, 90, 120, 150, and 180 days, with three replicates. After 180 d, a greater percentage of S. carpocapsae infective juveniles (IJs) were still alive in the foam treatment (57.5%) as compared to other treatments, while expanded clay (28.4%), Plantmax® (9.3%) and phenolic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Heterorhabditis; Steinernema; Biological control; Persistence; Survival. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000300013 |
| |
|
|
| Giometti,Fernando Henrique Carvalho; Leite,Luís Garrigós; Tavares,Fernando Martins; Schmit,Fábio Silber; Batista Filho,Antonio; Dell'Acqua,Raphaela. |
| O bicudo da cana-de-açúcar, Sphenophorus levis (Coleoptera: Curculionidae), é uma importante praga de solo dos canaviais no Estado de São Paulo, ocasionando prejuízos de até 30 t de cana/ha/ano. Visando ao controle biológico desta praga, esse estudo teve por objetivo avaliar a virulência de 17 isolados de nematóides entomopatogênicos do gênero Steinernema e Heterorhabditis contra adultos de S. levis, e o efeito dos quatro nematóides mais virulentos em três dosagens cada um. A pesquisa foi realizada em condições de laboratório, sendo realizados quatro ensaios para o estudo de virulência. Os nematóides selecionados como mais virulentos em cada teste foram S. brazilense IBCB n6, Heterorhabditis sp. IBCB n10, Heterorhabditis sp. IBCB n24 e Heterorhabditis sp.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Controle biológico; Manejo integrado de pragas; Bicudo da cana-de-açúcar; Steinernema; Heterorhabditis. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052011000100013 |
| |
|
|
| Andaló,Vanessa; Santos,Viviane; Moreira,Grazielle Furtado; Moreira,Camila Costa; Moino Junior,Alcides. |
| The increased corn planting grown in the late season crop and the use of a notillage planting system benefits the development of Spodoptera frugiperda, the main pest of corn crop. Thus, this study aimed to select entomopathogenic nematodes based on the mortality of S. frugiperda, and to adjust the nematode concentrations in the laboratory and evaluate the action of these organisms in greenhouse conditions. Seventeen nematode populations were tested at concentrations of 100, 250, and 500 infective juveniles (IJ)/larvae. The obtained data were submitted to the polynomial regression test. In the greenhouse, corn sowing was performed in plastic buckets with soil, corn straw, and water. After 7 days, Steinernema arenarium or Heterorhabditis sp. RSC02, and the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological control; Fall army worm; Heterorhabditis; Steinernema. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010000900002 |
| |
|
|
| Tumialis,Dorota; Pezowicz,Elżbieta; Skrzecz,Iwona; Mazurkiewicz,Anna; Maszewska,Justyna; Pietraszczyk,Joanna Jarmuł; Kucharska,Kornelia. |
| ABSTRACT: Entomopathogenic nematodes ( Steinernematidaeand Heterorhabditidae) were studied in Polish soils according to the: season, habitat and altitude. In total, 167 soil samples were taken from 111 localities in Poland along north-south transect. Entomopathogenic nematodes were isolated from 53 soil samples (31.7%). Nematodes species were identified genetically from 16 samples, and in all other 37 samples nematodes were determined to the genus level. Three species of the genus Steinernema ( Steinernema kraussei, S. feltiae, S. carpocapsae) and one of the genus Heterorhabditis( Heterorhabditis megidis) were recorded. Steinernema feltiaewas the most common species. There was not a significant association between the occurrence of nematodes and season... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Distribution; Steinernema; Heterorhabditis; Poland; Season; Habitat. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000701126 |
| |
|
| |
|
|
|
