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| Registros recuperados: 38 | |
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| Wineland, Nora. |
| In 1995, the National Animal Health Monitoring System (NAHMS) collaborated with the Research and Education Division of the American Sheep Industry Association (ASI) in developing a needs assessment tool to identify the most important health and productivity factors for the sheep industry. In collaboration with the USDA's National Agricultural Statistics Service (NASS), a statistically designed producer sample was selected to provide estimates for the United States sheep population in the 48 contiguous states. The NAHMS/ASI questionnaires were mailed to 19,807 sheep operations in January 1996; data were received and summarized from 5,174 respondents. It was estimated that in the 48 contiguous states, there were 82,040 operations with sheep as of 1995;... |
| Tipo: Report |
Palavras-chave: NAHMS; Sheep; Health; Disease; Death; Morbidity; Mortality; Economics; Predators; Vaccinations; Antibiotics; Income; Worms; Reproduction; Profitability; Livestock Production/Industries. |
| Ano: 1996 |
URL: http://purl.umn.edu/32743 |
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| Matos,Sidnéia Terezinha Soares de; Andrade,Daniel Júnior de; Zanata,Renan Moisés Paneghini; Azevedo,Emiliano Brandão de; Lima,Élison Fabrício Bezerra. |
| Abstract The mango tree (Mangifera indica L.), native to Asia, is expanding in Brazil. However, research related to phytophagous organisms and natural enemies associated with this fruit are scarce in the country. The aim of this work was to report new species of thrips-pest and natural enemies associated with mango tree inflorescence. The work was carried out in a Tommy Atkins mango orchard located in the municipality of Jardinópolis, São Paulo, Brazil. The arthropods found in malformed inflorescences were collected and identified. Frankliniella gemina Bagnall, Frankliniella distinguenda Bagnall (Thysanoptera: Thripidae) and Haplothrips gowdeyi (Franklin) (Thysanoptera: Phlaeothripidae) thrips-pest species were recorded for the first time associated with... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Thysanoptera; Pest; Predators. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000100404 |
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| França,Letice C.; Marini,Miguel Â.. |
| The Cerrado is still one of the most important ecosystems in Brazil, even though more than 50% of its area has been altered or converted to pastureland and plantations. Despite its intense degradation, few ecological processes that might affect its biodiversity have been evaluated. The goal of this study was to test the edge effect on the predation rates at natural and artificial nests, at the Ecological Station of Águas Emendadas, Federal District, Brazil. Natural nests were found and monitored every three to four days from September to December of 2004 in the interior and at the edge of the reserve. Artificial nests were placed at four distances from the edge (0, 500, 1000 and 2000 m) in three spatial replicates in September and again in December of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brood parasitism; Nest predation; Plasticine eggs; Predators. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000200006 |
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| Didonet,Julcemar; Zanuncio,José Cola; Sediyama,Carlos S.; Picanço,Martelo C.. |
| The effect of temperature on the development of Podisus nigrispinus (Dallas, 1851) and Supputius cinctceps (Stål, 1860) was studied in order to adjust equations to predict the development of these predators under 18, 20, 25, 30, 32 and 35º±0.2ºC, relative humidity of 65±10% and photophase of 12 hours. Incubation period of the eggs and duration and viability of nymphal stage were quadratically influenced by temperature while egg viability decreased linearly with increased temperature. The best temperature for egg development was 29ºC for both species and for nymphal development of P. nigrispinus and S. cincticeps they were 29º and 28ºC respectivelly. Nymphal viability was highly affected by extreme temperatures, with optima around 24ºC for S. cincticeps and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Heteroptera; Pentatomidae; Podisus nigrispinus; Supputius cincticeps; Nymphal development; Predators. |
| Ano: 1995 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751995000300005 |
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| Lopes,José. |
| Larvae of Culex eduardoi, Culex bigoti, Limatus durhamii and Toxorhynchites were collected in a tyre that had been placed in a wood by a river bank. These larvae were present coexisting and in an individualized form. It was observed that Toxorhynchites, Culex bigoti and Limatus durhamii were efficient in reducing the other two species's population. Culex bigoti and Toxorhynchites showed preference for Culex quinquefasciatus larvae, while Limatus durhamii preferred Culex eduardoi. The most efficient predator was Toxorhynchites, and the least efficient was Limatus durhamii. The reduction of the preys' population density was statistically meaningful in the face of the three species considered as predators. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Culicidae; Biological contral; Predators; Larvae; Artificial breeding sites. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000300018 |
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| Bortolotto, Orcial Ceolin; Menezes Junior, Ayres de Oliveira; Hoshino, Adriano Thibes; Campos, Thiago Augusto. |
| This study aimed to evaluate the influence of the distance from the edge of native forests on the abundance of aphidophagous hoverflies in wheat fields. The study was conducted in four commercial fields in the North of Paraná State, Brazil, during the wheat crop season of 2009. Two transects were surveyed parallel to the edge of the forest at two distances: 25 (“near”) and 525 meters (“far”) from the edge. The abundance of hoverflies was compared using a χ2 test (p ≤ 0.05). In total, 1,845 hoverflies adults were collected, which represented 15 species and three genera. The most abundant species was Allograpta exotica (60.43%), followed by Toxomerus dispar (17.78%) and Toxomerus watsoni (7.26%) (Diptera: Syrphidae). An important inference was that all... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agronomia; Fitossanidade; Entomologia Agrícola conservative biological control; Predators; Wheat pests; Landscape preservation; Refuge area. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/27711 |
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| Fernandes, Flávio Lemes; Fernandes, Maria Elisa de Sena; Lopes, Elisângela Novais; Venzon, Madelaine; Diniz, Juno Ferreira da Silva; Dias, Luis Antônio dos Santos. |
| Jatropha curcas has a high biofuel oil content, which could replace polluting fuels, and has great potential for large scale monoculture cultivation in the conventional system. We explored the occurrence, spatial distribution and the functional response of the main phytophagous species of this plant and their natural enemies to explore the potential for conservative biological control. We began sampling phytophagous species and predators when J. curcas plants were six months old. The most common species of phytophagous insects were nymphs and adults of Empoasca kraemeri, followed by Frankliniella schultzei and Myzus persicae. Among the predators, Ricoseius loxocheles, Iphiseioides zuluagai, Araneidae, larvae and adults of Psyllobora vigintimaculata and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Predators; Parasitoids; Phytophagy; Spatial distribution; Functional response Entomologia Agrícola. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17562 |
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| Canevari,Glauco da Cruz; Rezende,Fernanda; Silva,Rafael Braga da; Faroni,Lêda Rita D'Antonino; Zanuncio,José Cola; Papadopoulou,Smaro; Serrão,José Eduardo. |
| This work investigated the potential of Tyrophagus putrescentiae (Schrank) (Astigmata: Acaridae) to control Lasioderma serricorne (F.) (Coleoptera: Anobiidae) in the laboratory. L. serricorne is the most destructive insect pest ever found on stored tobacco. The experimental delineation had 33 arenas being each experimental unit with 11 arenas of experiments with eggs, larva of L. serricorne with the density of T. putrescentiae maintained constant, where from 11 of these arenas, eight were for the analysis of predation and three to evaluate the natural mortality of the insect. The highest predation rate was found during the larval stage with, approximately, 54, 68 and 78% mortality of L. serricorne from the fourth until the sixty day of predation. These... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological control; Lasioderma serricorne; Predators; Stored products; Tyrophagus putrescentiae. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000200017 |
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| Pal,Suprakash; Mandal,Rupsanatan; Sarkar,Indrajit; Ghimiray,Tulsi Saran; Sharma,Binay Raj; Roy,Ayon; Roy,Suvendu Kumar; Chakraboorty,Gautam; Mitra,Sabyasachi. |
| ABSTRACT The species richness and relative abundances of different aboveground plant-dwelling pest and predator species were assessed in flax (Linum usitatissimum L.) ecosystem under mid-hill conditions of eastern Himalayas. The experiment was conducted in winter seasons during 2004-2013 at the Regional Research Station (Hill Zone), Uttar Banga Krishi Viswavidyalaya, Kalimpong, West Bengal, India. Twenty five species of phytophagous arthropods under 13 families were observed belonging to 6 different orders. The gram pod borer, Helicoverpa armigera (Noctuidae: Lepidoptera), aphid, Myzus persicae (Aphididae: Hemiptera), shield bug, Plautia fimbriata (Pentatomidae: Hemiptera) and leaf webber, Nacoleia sp. (Pyralidae: Lepidoptera) were found as the most common... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Flax; Pests; Predators; Species richness; Abundance. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100459 |
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| Duarte,Adriane da Fonseca; Moreira,Grazielle Furtado; Cunha,Uemerson Silva da; Siqueira,Paulo Ricardo Ebert; Moraes,Gilberto José de. |
| ABSTRACT: The diversity of edaphic mites in Brazilian natural environments is little known, especially in the Pampa biome, in southern region of Brazil. The objective of this study was to evaluate the diversity and abundance of edaphic fauna of mesostigmatid mites in a region of the Pampa biome of the state of Rio Grande do Sul. Soil samples were collected in the municipality of Aceguá, in 2012 and 2013. Mites were extracted using Berlese-Tullgren modified funnels. In total, 1900 mesostigmatid mites were collected, representing 44 species from 23 genera and 10 families. The most abundant families were Rhodacaridae, Ologamasidae and Laelapidae, with respectively 903, 578 and 214 specimens, corresponding respectively to 47.5, 30.4 and 11.3% of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Taxonomy; Predators; Biological control; Biodiversity. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000200152 |
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| Registros recuperados: 38 | |
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