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Simulium spp. control program in Rio Grande do Sul, Brazil
Mardini, Lucia Beatriz LF;Torres, Maria Amélia N;Silveira, Geraldo Lopes da;Atz, Ana Maria V;
Memórias do Instituto Oswaldo Cruz , 2000, DOI: 10.1590/S0074-02762000000700036
Abstract: insects of the simuliidae family have been the object of control in rio grande do sul since the 70s. their constant attacks became a social-economical problem as well as a problem of public health, with serious consequences to men and to the economy of the areas in which the insects develop. at first, the control was done with a chemical larvicide themephos abate 500 e, but an imperfect measuring of outflow to determine the quantity of the product made simulium spp. resistant to it. from 1983 on, following a study of a new method for the outflow measuring, we started to use a biological larvicide bacillus thuringiensis serovar israelensis based. the biological control uses the new method in 36.4% of the state area, assisting about 3,500,000 inhabitants.
Simulium spp. control program in Rio Grande do Sul, Brazil  [cached]
Mardini Lucia Beatriz LF,Torres Maria Amélia N,Silveira Geraldo Lopes da,Atz Ana Maria V
Memórias do Instituto Oswaldo Cruz , 2000,
Abstract: Insects of the Simuliidae family have been the object of control in Rio Grande do Sul since the 70s. Their constant attacks became a social-economical problem as well as a problem of Public Health, with serious consequences to men and to the economy of the areas in which the insects develop. At first, the control was done with a chemical larvicide Themephos ABATE 500 E, but an imperfect measuring of outflow to determine the quantity of the product made Simulium spp. resistant to it. From 1983 on, following a study of a new method for the outflow measuring, we started to use a biological larvicide Bacillus thuringiensis serovar israelensis based. The biological control uses the new method in 36.4% of the state area, assisting about 3,500,000 inhabitants.
Presence of eggs of Toxocara spp. and hookworms in a student environment in Rio Grande do Sul, Brazil
Gallina, Tiago;Silva, Maria Antonieta Machado Pereira da;Castro, Luciana Laitano Dias de;Wendt, Emília Welter;Villela, Marcos Marreiro;Berne, Maria Elisabeth Aires;
Revista Brasileira de Parasitologia Veterinária , 2011, DOI: 10.1590/S1984-29612011000200016
Abstract: environmental contamination by parasite forms was studied on a university campus in the municipality of pelotas, rio grande do sul. soil samples were analyzed using the modified caldwell & caldwell technique to identify parasite forms. nematode eggs were detected in 62% of the samples. among the parasites detected, eggs of toxocara spp. and ancylostomatidae were the most prevalent parasites in the studied area throughout the study period. the results demonstrated that there is significant environmental contamination, thereby representing a risk of zoonotic infection for humans frequenting the study area.
OCORRêNCIA DE Glycaspis brimblecombei (Moore, 1964) (Hemiptera: Psyllidae) EM Eucalyptus spp. NO RIO GRANDE DO SUL, BRASIL
Leonardo da Silva Oliveira,Ervandil Corrêa Costa,Marta Grellmann,Edison Bisognin Cantarelli
Ciência Florestal , 2006,
Abstract: Em janeiro de 2005, pela primeira vez, foi constatada a ocorrência de Glycaspis brimblecombei (Moore, 1964) (Hemiptera: Psyllidae) em espécies de Eucalyptus spp. no estado do Rio Grande do Sul, Brasil. A observa o ocorreu nos municípios de Butiá, Ca apava do Sul e Santa Maria.
Qualidade sanitária de sementes de aveia-preta (Avena strigosa Schreb.) produzidas no estado do Rio Grande do Sul, safra 1999/2000
Farias, Candida Renata Jacobsen;Lucca-Filho, Orlando Antonio;Pierobom, Carlos Roberto;Del Ponte, Emerson Medeiros;
Revista Brasileira de Sementes , 2002, DOI: 10.1590/S0101-31222002000100001
Abstract: this work aimed to evaluate the health quality of black oat seeds (avena strigosa schreb.) produced in the rio grande do sul state, brazil. 81 seed lots from 16 different countries were evaluated. blotter test was used based with 400 seeds by lot. the fungi detected in the seeds were: alternaria sp., chaetomium sp.,cladosporium sp., colletotrichum sp., curvularia sp., epicoccum sp., nigrospora sp., colletotrichum sp., fusarium sp. and the storage fungi aspergillus sp.and penicillium sp. were detected. the highest mean incidence was observed to phoma sp. and bipolaris spp. with 18.4 and 22.4%, respectively. it was concluded that it must be taken a best management of this forage to reduce seed contamination.
Intoxica??o por Senecio spp. em bovinos no Rio Grande do Sul: condi??es ambientais favoráveis e medidas de controle
Karam, Fernando Castilhos;Schild, Ana Lucia;Mello, Jo?o Roberto Braga de;
Pesquisa Veterinária Brasileira , 2011, DOI: 10.1590/S0100-736X2011000700010
Abstract: the study aimed to review the main aspects of senecio spp. poisoning in rio grande do sul, sou-thern brazil, in relation to the pathology, pathogenesis and epidemiology of this important cause of death in cattle in that state. the main climatic and environmental factors that apparently favor the emersion and plant establishment were revised. the occurrence of poisoning, which has increased its frequency in recent years in the state, and possible ways to control the plant, including the correct handling of soil and the use of less susceptible domestic species in invaded areas were also discussed.
DISTRIBUI??O GEOGRáFICA E COMPOSI??O QUíMICA DE CHAPéU DE COURO (Echinodorus spp.) NO RIO GRANDE DO SUL
Bevilaqua, Gilberto Antonio Peripolli;Nedel, Jorge Luis;Zuanazzi, José Angelo;Correa, Claudia Tatiane;
Ciência Rural , 2001, DOI: 10.1590/S0103-84782001000200004
Abstract: the aim of this research work was to describe the genetic and chemical variability of the medicinal specie "chapéu de couro" (echinodorus grandiflorus and other species), which is found in rio grande do sul state, brazil. the plants had been collected at sixteen different sites and planted again in an experimental area at the federal university of pelotas (ufpel), in the town of pelotas-rs. the plants have grown in waterlands, by keeping them underwater during the winter and adding water when the soil was dry. the plants have been fed up with lime, ash of rice waste and vermcomposite. the leaves and the seeds have been collected during spring and summer. the phenology of the different material has been observed to proceed the botanical and physiological description of ecotypes, through field parameters and in the experimental area. the chemical composition of the major chemical substances in the leaves of both native and non native plants was also analyzed. the evaluation led to conclude that: 1- the vailing specie in rio grande do sul state is echinodorus grandiflorus; 2 - the ecotypes from cruz alta and s?o gabriel are prefered for cropping due to their early and dry matter production; 3 - the ecotypes from arroio grande and jaguar?o are prefered for cropping due to your rich chemical composition.
Ocorrência de Helicoceras oryzae em sementes e gr?os de arroz produzidos no Rio Grande do Sul
Alvarado, Indira del C.M.;Moura, Andréa B.;Schafer, Jaqueline T.;Farias, Candida R.J.;Pierobom, Carlos R.;
Tropical Plant Pathology , 2008, DOI: 10.1590/S1982-56762008000400013
Abstract: samples of rice seeds and grains were collected from different localities in the state of rio grande do sul during 2000-2001 (62 samples) and 2001-2001 (194 samples). samples from the localities of agro reis, agudo, alegrete, arambaré, arroio grande, bagé, ca?apava do sul, cachoeira do sul, cachoeirinha, camaqu?, cangu?u, cap?o do le?o, capivari do sul, dom pedrito, eldorado do sul, esteio, guaíba, herval, itaquí, júlio castilhos, morro redondo, palmares do sul, pedro osório, pelotas, pinheiro machado, porto alegre, quaraí, restinga seca, rio grande, rosário do sul, santa vitória do palmar, santa rita, santo angelo, santo ant?nio, s?o borja, s?o gabriel, s?o louren?o do sul, s?o luiz gonzaga, tapes, turu?u, uruguaiana and viam?o were evaluated for the presence of a pest not found in brazil, helicoceras spp. using the blotter test, 400 seeds were examined for each sample. the fungus h. oryzae was found in three samples of the 2000-2001 season: 268 (eea-406), 647 (formosa) and 652 (irga 419) from cachoeirinha. these results allowed confirmation of the presence of the fungus h. oryzae. the conesul committee of plant health and safety is evaluating the exclusion of this fungus, considered a pest of minor importance, from the quarantine list. future studies about dissemination and impacts of the disease are necessary to support effective control measures.
Quality of Schizolobium parahyba seeds and seedlings from Rio Grande do Sul, Santa Catarina and Paraná states  [PDF]
Edicléia Aparecida Iensen Cherobini,Marília Lazarotto,Marlove Fátima Bri?o Muniz,Leonita Beatriz Girardi
CERNE , 2010,
Abstract: This research aimed to study the vigor and the quality of Schizolobium parahyba seeds from samples of three differentstates, Rio Grande do Sul (RS), Santa Catarina (SC) and Paraná (PR) and to evaluate the seedlings quality produced by these seeds.The seeds were submitted to evaluations of moisture content, germination, vigor and healthy. The seedlings quality was evaluated byhard seeds, dead seeds, emergence, seedling height, root length, collar diameter, fresh and dry weight of seedlings. On the seedsevaluations, the samples from SC and PR presented better results for first count of germination, dry matter and accelerate aging. Thefungi associated to the seeds were Aspergillus sp., Alternaria sp., Penicillium sp. and Trichoderma sp. About the seedlings evaluations,seeds from PR showed the bests results when the differences between tests were significant (emergence, root length and dry weight ofseedlings). Some of the labs variables had correlation with the seedlings variables.
Occurrence of antibodies anti-Neospora spp. in cart horses and Crioula breed horses from Rio Grande do Sul state
Toscan, G;Vogel, F.S.F;Cadore, G.C;Cezar, A.S;Sangioni, L.A;Pereira, R.C.F;Oliveira, L.S.S;Lopes, S.T.A;
Arquivo Brasileiro de Medicina Veterinária e Zootecnia , 2011, DOI: 10.1590/S0102-09352011000100038
Abstract: o objetivo deste estudo foi avaliar a frequência de detec??o de anticorpos contra neospora spp. em cavalos de carro?a e em cavalos da ra?a crioula. para tal, 214 amostras de soro foram coletadas e analisadas pela técnica de imunofluorescência indireta, das quais 91 eram de cavalos de carro?a e 123 de cavalos da ra?a crioula, todas provenientes da regi?o central do rio grande do sul. as frequências de anticorpos detectadas foram: 15,9% (34/214) na popula??o total estudada, 15,4% (14/91) nos cavalos de carro?a e 16,3% (20/123) nos cavalos da ra?a crioula. estes resultados sugerem que a infec??o por neospora spp. está presente igualmente nas duas popula? ?es. assim, devido à importancia e ao padr?o da patogênese da neosporose em equinos, neospora spp. deve ser incluído no diagnóstico de problemas reprodutivos em éguas e em casos de problemas neurológicos em equinos.
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