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| Registros recuperados: 62 | |
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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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| ANDREOTTI, R.; BARROS, J. C.; GARCIA, M. V.; RODRIGUES, V. da S.; HIGA, L. de O. S.; DUARTE, P. O.; BLECHA, I. M. Z.; BONATTE-JUNIOR, P.. |
| The present study evaluated the behavior of Rhipicephalus microplus naturally infesting Brangus cattle raised with Nellore animals in the municipality of Água Clara, state of Mato Grosso do Sul, Central Brazil. For the field experiment composed of a group with 15 Brangus animals and 15 Nellore animals and a control group with 30 Brangus cattle, all at the post-weaning stage. The 2 groups were kept for 6 months in 2 adjacent paddocks, naturally infested with ticks, at a stocking rate of approximately 0.6 of an animal unit per hectare (AU/ha). Every 18 days, the animals were weighed, and ticks on both sides of each bovine were counted. Every 36 days, blood was collected for hematocrit measurement and molecular diagnosis of the 3 pathogens that cause tick... |
| Tipo: Artigo de periódico |
Palavras-chave: Carrapato-do-boi; Bovine; Cattle tick; Control; Infestation; Bovino; Infestação. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1101878 |
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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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| CRUZ, I.; VENDRAMIM, J. D.. |
| Os genotipos de sorgo foram semeados em vasos, sendo as plantas protegidas com uma gaiola de armacao de arame envolta de tecido fino (filo). No primeiro experimento, usando apenas o genotipo suscetivel (BR 601) efetuou-se a infestacao com uma densidade de pulgoes de zero, cinco, dez, quinze, 20 e 25 individuos de sete dias de idade por planta, quando esta estava com onze dias apos o plantio. Num segundo experimento, incluindo tambem o genotipo resistente TX 2567, utilizaram-se densidades de zero, dez, 20 e 30 pulgoes por planta, com as infestacoes realizadas quando as plantas estavam com 16, 26 e 36 dias apos o plantio. As avaliacoes basearam-se em uma escala de notas, de zero (nenhum dano) a nove (acima de 81% de necrose da planta) e na diferenca do... |
| Tipo: Artigo de periódico |
Palavras-chave: Nivel; Sorghum; Infestation; Greenbug; Damage; Host; Plant; Resistance; Insect; Dano; Infestação; Inseto; Planta; Praga; Pulgão Verde; Resistência; Schizaphis Graminum; Sorgo; Pests. |
| Ano: 1988 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/471646 |
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| MOREIRA, A. N.; OLIVEIRA, J. V. de; HAJI, F. N. P.. |
| O microacaro Aculops lycopersici constitui uma das pragas-chave do tomateiro na regiao do Submedio Sao Francisco. No controle deste acaro, utilizam-se basicamente acaricidas e inseticidas-acaricidas, entretanto, o seu uso inadequado provoca um desequilibrio no agroecossistema do tomateiro e aumento dos custos de producao. O excesso ou deficiencia de nutrientes tambem pode afetar o agroecossistema do tomateiro, interferindo nos danos causados pelo ataque do microacaro e de outras pragas. Na busca de novas alternativas de controle, a aplicacao de fertilizantes na agricultura desponta como uma importante tatica de manejo integrado de pragas. Dessa forma, o objetivo deste trabalho foi avaliar o efeito de diferentes niveis de NPK, em condicoes de campo, na... |
| Tipo: Parte de livro |
Palavras-chave: Controle; Brasil; Nordeste; Submedio Sao Francisco; Tomato; Infestation; Management; Control; Fertilization; Northeast.; Tomate; Ácaro; Aculops Lycopersici; Fertilizante; Fósforo; Infestação; Manejo; Nitrogênio; Potássio.; Nutriente; Brazil; Mites.. |
| Ano: 1997 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/132635 |
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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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| 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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| Registros recuperados: 62 | |
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