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| Registros recuperados: 38 | |
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| FIGUEIREDO, F. J. C.; CARVALHO, J. E. U. de; FRAZAO, D. A. C.. |
| Com o objetivo de identificar um sistema eficiente de aplicação de defensivos (inseticida e/ou fungicida), com vistas a produção de sementes de caupi (Vigna unguiculata (L.) Walp.) livres de pragas e doenças, foi conduzido no Campo Experimental de Tracuateua, município de Bragança, Estado do Pará, um experimento onde testaram-se diferentes sistemas de pulverização. O inseticida (Diazinon) e o fungicida (Mancozeb) foram aplicados separadamente ou em mistura aos dez, 30 e 50 dias após a emergência, segundo o sistema. Os tratamentos Dz1, Dz2, Dz3 (uma, duas e três aplicações de Diazinon), Dn1, Dn2, Dn3 (uma, duas e três aplicações de Mancozeb), Dz1 + Dn1, Dz2 + Dn1, Dz3 + Dn1, Dz1 + Dn2, Dz2 + Dn2, Dz3 + Dn2, Dz1 + Dn3, Dz2 + Dn3 e e Dz3 + Dn3 foram... |
| Tipo: Folhetos |
Palavras-chave: Caupi; Campo Experimental de Tracuateua; Braganca; Pará; Brasil; Cowpea; Pulverization; Infestation; Yield; Insecticide; Fungicide; Fungicida; Germinação; Inseticida; Infestação; Produtividade; Pulverização; Vigna Unguiculata; Amazonia; Germination; Vigor. |
| Ano: 1985 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/383610 |
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| Ali,H.H.; Tanveer,A.; Naeem,M.; Jamil,M.; Iqbal,M.; Chadhar,A.R.; Kashif,M.S.. |
| Rhynchosia capitata is a newly emerging threatening weed of summer crops in many Asian countries. We conducted 2-yr experiments to evaluate R. capitata competition with mungbean under irrigated conditions. Rhynchosia capitata was allowed to compete with mungbean for 0, 3, 4, 5, 6, 7 weeks after planting and for full crop season. The competitive ability of R. capitata was assessed by measuring its dry weight, micro and macro nutrient contents and uptake; and its effects on mungbean growth and yield parameters. The results showed that full season weed competition produced highest dry weight of R. capitata and its macro and micronutrient contents and uptake. Yield and yield components of mungbean decreased in a linear fashion with increase in competition... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rhynchosia capitata; Emerging; Infestation; Competition; Mungbean; Nutrients. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582015000200175 |
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| Freitas,C.M.V.; Leite,R.C.; Oliveira,P.R.; Fernández,F.C.. |
| The development of acquired resistance to Amblyomma cajennense ticks was evaluated. A total of 18 rabbits were uniformly distributed into three groups named GL, GN, and GA that were submitted to three consecutive infestations with, respectively, larvae, nymphs, and adults of A. cajennense. After the infestations, the parasitic and reproductive parameters of recovered instars were evaluated. A significant reduction of recovery rates of inoculated ticks was observed only after the third infestation of animals in groups GL and GN (P<0.01). The modal day for drop-off of engorged larvae and nymphs increased along the infestations. The recovered engorged nymphs presented a significant reduction of the mean body weight between the first and the third... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tick; Ixodide; Resistance; Immunity; Infestation. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352009000500011 |
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| Lyra-Neves,Rachel M. de; Farias,Ângela M. Isidro de; Telino-Júnior,Wallace R.. |
| The objective of this study was to investigate feather mites on birds of the Family Emberizidae, to collect data on the ecological ectoparasite-host relationship and infestation level. A sum of 94 birds of 9 species was captured at the Refúgio Ecológico Charles Darwin, Igarassú, Pernambuco, Brazil, from August 1996 to July 1997. Five genera of mites from the superfamily Analgoidea were identified: Analges Nitzsch, 1818; Mesalgoides Gaud & Atyeo, 1967; Pterodectes Robin, 1877; Proctophyllodes Robin, 1877 and Trouessartia Canestrini, 1899. Among the 94 birds examined, 92 (97,87%) were infested. Regarding the prevalence, it was observed that the genera with higher percentage were, respectively, Pterodectes (88,04%), Proctophyllodes (56,52%) and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Analgoidea; Ecology; Infestation; Passeriformes. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752003000300019 |
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| Alavalapati, Janaki R.R.; Jose, Shibu; Stainback, G. Andrew; Matta, Jagannadha R.; Carter, Douglas R.. |
| Cogonagrass (Imperata Cylindrica), an invasive weed, is a threat to slash pine forests. Using a dynamic optimization model, we estimated the impact of cogongrass on the profitability of slash pine forestry under four scenarios: no threat of cogongrass infestation; infestation is uncertain, and no control measures are taken; infestation is uncertain, but control measures are undertaken by one landowner but not the neighbors; and infestation is uncertain, and control measures are undertaken by everyone. Results indicate that annual net returns per acre under each scenario, respectively, are $25.30, $16.97, $13.89, and $17.38. Results suggest fostering a cooperative behavior among landowners is desirable. |
| Tipo: Journal Article |
Palavras-chave: Cogongrass; Infestation; Invasive species; Productivity; Profitability; Q0; Q2. |
| Ano: 2008 |
URL: http://purl.umn.edu/37121 |
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| Machado,Glauco B. de O.; Sanches,Fabio H. C.; Fortuna,Monique D.; Costa,Tânia M.. |
| Stalked barnacles Octolasmis lowei Darwin, 1851 are frequently found attached to decapod crustaceans. Their epibiotic association depends on many factors, which are mainly related to characteristics of the host's biology. This study evaluated the infestation and distribution of stalked barnacles in the branchial chambers of crabs, and analyzed the data with respect to the host's sex, maturity stage, molt cycle and size. The crab species Arenaeus cribrarius Lamarck, 1818, Callinectes danae Smith, 1869, Callinectes ornatus Ordway, 1863, Hepatus pudibundus Herbst, 1785, Libinia ferreirae Brito Capello, 1871, and Persephona punctata Linnaeus, 1758 were sampled and found to be infested by O. lowei. No juvenile crabs were infested. The prevalence of infestation... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brachyurans; Epibiont; Infestation; Host biology; Symbiosis. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702013000300007 |
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| BARROS, A. T. M. de. |
| O Pantanal representa uma das regiões mais importantes do pais em termos de Pecuária de corte, com um rebanho estimado em cerca de 3,8 milhões de cabeças (Cadavid Garcia, 1986). Desde sua chegada a região em 1991 (Barros, 1992), a mosca-dos-chifres (Haematobia irritans) tem gerado uma significativa apreensão a classe produtora. A ocorrência inicial de níveis de infestação considerados prejudiciais e a crescente demanda por um programa de controle evidenciaram a necessidade de estudos na região. Desde 1993, pesquisas vem sendo desenvolvidas visando definir as épocas, níveis e duracao das infestações nos bovinos, com o objetivo de avaliar a magnitude do problema e propor um programa de controle adequado ao Pantanal. Paralelamente, tendo em vista a... |
| Tipo: Folhetos |
Palavras-chave: Mosca-dos-chifres; Brasil; Infestation; Haematobia Irritans; Infestação; População; Pantanal; Population. |
| Ano: 1995 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/931146 |
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| Costa,Jane; Almeida,Carlos E.; Esperança,Gleidson M.; Morales,Nínive; Mallet,Jacenir R. dos S.; Gonçalves,Teresa C.M.; Prado,Angelo P. do. |
| Megaselia scalaris (Loew) is a cosmopolitan and synanthropic scuttle fly, eclectic in its feeding habits and acts as detritivore, parasite, facultative parasite, and parasitoid. Here we report for the first time M. scalaris infesting laboratory colonies of Triatoma brasiliensis Neiva, the most important Chagas disease vector in semiarid areas of Brazil. M. scalaris larvae were found feeding inside bugs; pupae were found in the esophagus and intestinal regions of T. brasiliensis through dissection. Other relevant information about this finding is also described in this note, including some preventive measures to avoid laboratory colonies infestations. |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Phorid; Infestation; Triatomine. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2007000600026 |
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| Ofuya,T.I; Olotuah,O.F; Ogunsola,O.J. |
| Fumigant toxicity of crushed fresh bulbs of Allium sativum L. and A. cepa L. to the Callosobruchus maculatus (Fabricius), a major pest of stored cowpea (Vigna unguiculata (L.) Walp.) seeds was assessed under laboratory conditions in Akure, Nigeria. In the tests, 20 g of infested cowpea seeds were suspended in a piece of muslin cloth, over an amount of crushed bulb in a container with a tightly fitted lid. Adult emergence was completely prevented from freshly laid eggs of C. maculatus on cowpea seeds that was fumigated with 6.0 g or more of crushed bulbs of A. sativum. Such fumigated seeds were not holed at all. Other amounts of A. sativum tested (1.0, 2.0, 3.0, 4.0 and 5.0 g) significantly reduced C. maculatus adult emergence from fumigated eggs and seed... |
| Tipo: Journal article |
Palavras-chave: Infestation; Seed holing; Pesticide; Volatiles; Essential oils. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392010000300019 |
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| Sauers-Muller,Alies van. |
| Fruits were collected over a 12-year period to determine the host status for the Carambola fruit fly, Bactrocera carambolae Drew & Hancock, and other tephritid species in Suriname, South America. Over 11,000 fruit samples were collected from many locations and the total of 20 fruit species were recorded as host, ranging in infestation from heavy to occasional. Over 650 samples of 188 fruit species, including many wild species, were collected and no fruit flies were reared. This work, which started specifically to obtain information on the Carambola fruit fly, resulted also in detailed information regarding the importance, distribution and host preferences of several Anastrepha species, and the status of fruit fly parasitoids. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fruit survey; Anastrepha; Infestation; Parasitoid; Host; Preference. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2005000200008 |
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| Vasconcelos, Huann Carllo Gentil; Tavares-Dias, Marcos. |
| Host-parasite interactions between crustaceans and six fish species (Psectrogaster falcata, Ageneiosus ucayalensis, Acestrorhynchus falcirostris, Hemiodus unimaculatus, Serrasalmus gibbus and Geophagus proximus) from a reservoir in eastern Amazon, northern Brazil, were investigated. Eight hundred and seventy-eight parasites belonging to three crustacean species, Excorallana berbicensis, Argulus chicomendesi and Ergasilus turucuyus, which parasitized the hosts’ mouth, gills and tegument, were collected from 295 fish and examined. High infestation levels were caused by E. berbicensis on the body surface of the hosts. Excorallana berbicensis showed aggregate dispersion, except in S. gibbus, while E. turucuyus showed random dispersion in A. falcirostris. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body condition; Ectoparasites; Environment; Freshwater fish; Infestation. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/29601 |
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| Torres, Rodrigo de Nazaré Santos; Barreto, Marliton Rocha. |
| Resumo. Quanto às enfermidades apícolas descreve-se que o Brasil está em situação vantajosa comparando com outros países, por apresentar enxames rústicos que, por serem mais resistentes a doenças, dispensam a utilização de antibióticos. Entretanto, a dinâmica de populações do ácaro Varroa mostrou ser muito diferente das outras regiões afetadas pela varroose sendo os primeiros índices registrados superiores a 20% e, ainda, se têm poucos trabalhos em relação à taxa de infestação em diferentes regiões do Brasil. Desta forma, este trabalho teve como objetivo realizar um levantamento de incidência do ácaro Varroa destructor (Anderson & Trueman) em colmeias na região de Sinop, MT. As coletas foram realizadas nos meses de julho e agosto de 2011 em oito... |
| Tipo: Article |
Palavras-chave: Ácaro; Apis; Infestação; Infestation; Mite. |
| Ano: 2013 |
URL: http://hdl.handle.net/2315/269 |
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| Registros recuperados: 38 | |
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