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| Godoy,Cláudia Vieira; Seixas,Claudine Dinali Santos; Soares,Rafael Moreira; Marcelino-Guimarães,Franscismar Correa; Meyer,Maurício Conrado; Costamilan,Leila Maria. |
| Abstract: Asian soybean rust, caused by the fungus Phakopsora pachyrhizi, is the most severe disease of the crop and can cause yield losses of up to 90%. The disease was first reported in Brazil in 2001. Epidemics of the disease are common in the country, where the fungus can survive year-round. Regulatory measures to reduce the inoculum between seasons and avoid late-season soybean have been adopted to manage the disease. Disease control has relied mainly on chemical control, but a lower sensibility of the fungus to fungicides has been reported in Brazil. Major-resistance genes have been mapped and incorporated into the cultivars. With the reduced efficacy of the fungicides, the adoption of integrated measures to control the disease will be important for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max; Phakopsora pachyrhizi; Biotechnology; Chemical control; Genetic resistance; Losses; Management.. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000500407 |
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| Ferreira,Júlio CA; Hernandes,Isabela; Brito,Olívia DC; Cardoso,Michelly R; Dias-Arieira,Claudia R. |
| ABSTRACT Root-knot nematodes are among the major phytosanitary problems on vegetables, and the use of organic matter can be a viable method to control this parasite. Thus, in the present study we aimed to investigate in a greenhouse the use of bokashi doses (organic compound produced by fermentation of grain mixtures) in the control of Meloidogyne javanica in lettuce. Substrate infestation was carried out using tomato seedlings transplanted into pots containing 2 kg of autoclaved soil and inoculated with 2000 eggs and eventual second stage juveniles. After 60 days, the aerial part of the tomato plant was discarded and lettuce seedlings of cv. Vera were transplanted, adding bokashi at doses of 0, 5, 10 and 20 g/pot. One second treatment consisted in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lactuca sativa; Organic matter; Root-knot nematode; Management.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362017000200224 |
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| Cysne, Alex Queiroz; Rios, Sara de Almeida. |
| Rhynchophorus palmarum (L.) is one of the main pests of economic importance in the cultivation of American oil palms. This work aimed to evaluate the influence of the management practices and environmental variables in the population of R. palmarum in area of seed production of Elaeis spp. in the Amazonas State, Brazil. The climate data (temperature, relative humidity, and rainfall), seed production (number of harvested bunches, number of female inflorescences) and capture of insects (traps baited with pheromone of aggregation and sugar cane (Saccharum officinarum L.) were collected, and subjected to statistical analysis, multiple linear regression, and Pearson’s correlation. It was observed that rainfall, minimal relative humidity and harvest of bunches... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coleoborers; Elaeis guineensis; Elaeis oleifera; Management.. |
| Ano: 2017 |
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/13876 |
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