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| Registros recuperados: 10 | |
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| Soccol,Carlos Ricardo; Pollom,Teresinha E. V.; Fendrich,Ricardo Cancio; Prochmann,Fernando Alberto; Mohan,Radijiskumar; Blaskowski,Marita Maciel Moreira; Melo,André Luiz de Almeida; Carvalho,Cláudio Jose Barros de; Soccol,Vanete Thomaz. |
| Aedes aegypti is the vector of Dengue disease, responsible for 20,000 deaths/year worldwide. Bacillus thuringiensis var israelensis - Bti releases selective and effective toxins (crystal proteins) against A. aegypti larvae. We present a low cost bioprocess for toxin production, accomplished by a selected Brazilian strain Bti (BR-LPB01) and employment of low cost substrates. Soybean meal and sugarcane molasses lead to high toxic effectiveness after 2L bioreactor fermentation (LD50=26ng/mL), near to the reference strain IPS82 (LD50=17.3 ng/mL). The pH ranged between 5.8 and 7.0 during the exponential growth period and between 7.0 and 8.4 during the stationary phase, with low activity. Thus, control of foam and pH 7.0 were started and proved to be crucial for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biopesticide; BTI; Dengue Fever Disease; Soybean meal; Sugarcane molasses. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700017 |
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| Slininger,Patricia J.; Behle,Robert W.; Jackson,Mark A.; Schisler,David A.. |
| Thousands of potential microbial biocontrol agents have been isolated from agricultural fields and crops during research over the last 80 years, yet only a few are in commercial use. Recently, public health and safety concerns about the environmental impact of chemical pesticides have led to consideration of biological control as a natural approach to maintaining crop health. Despite environmental incentives and strong research efforts, commercialization of biocontrol agents has been slow to evolve. The momentum of the chemical industry is difficult to shift, and fermentation processes tend to be more expensive to operate than synthetic chemical processes.Yet there is a demand for biological control products, especially in agricultural niche markets, where... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biopesticide; Biological control; Fermentation; Formulation; Stabilization. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2003000200001 |
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| Alizadeh, Esmaeil. |
| Alfalfa weevil (Hypera postica Gyllenhal.) control is traditionally based on the use of chemical insecticides. Due to the side effects of these compounds, there are many motivations for the use of integrated control methods, which may include the use of biopesticides (microbial and botanical). The result of the effect of seven doses of the tested biopesticides (500, 1000, 1500, 2000, 2500, 3000 and 3500 ppm) under laboratory conditions indicated that the insecticides Azadiractin® (1859.971 ppm) and Biobit® (2000.57 ppm) were of the highest, while Basiokara® (3178.697 ppm) and Naturalis® (2973.246 ppm) were of the lowest lethality. Field experiments were carried out based on randomized complete block design with 10 treatments and 4 replications. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biopesticide; Control; Forage; Lucerne; Management. |
| Ano: 2019 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5367 |
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| CAPALBO, D. M. F.; ARANTES, O. N.; MEDUGNO, C. C.; SILOTO, R. C.; WATANABE, M. A.; GONZALES, G. M.. |
| A loopful of Bti mantained on Luria-Bertani agar medium was transferred to Bacto-Peptona agar medium. After 3 days at 30oC, the petri-disheswere washed with sterilized water (100ml/petri-dish). The suspension obtained represented the inoculum for the semi-solid rice-based fermentation medium. The growth units were incubated until complete sporulation of Bti. The resulting biomass was dried at 60oC in an oven for 24h, sieved through 60 tyler. The retained powder did not show any larvicidal activity. In parallel, colloidal bentonite was treated with organic macromolecules dissolved in toluene, after sedimentation, the botton phase was dried at 120oC for 4h. This treatment led to a spreading and floating clay which resulted in a good carrier for Bti. Then,... |
| Tipo: Parte de livro |
Palavras-chave: Bacillus thuringiensis var; Israelensis; Rice medium; Fermentation medium; Formulation; Biopesticide; Biopesticida.; Arroz; Controle Biológico; Fermentação; Formulação; Meio de Cultura.; Biological control.. |
| Ano: 1994 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/12425 |
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| BARROS, S. K. A.; PITTA, R. M.; LOPES, R. B.; ALMEIDA, E. G. de; FERREIRA, F. T. R.. |
| EN-US: Due to the reduced host spectrum of the entomopathogenic fungus Metarhizium rileyi, its pathogenicity against different target insects must be assessed to develop biopesticides capable of controlling more than one pest species. This study aimed to evaluate the susceptibility of the pest species Chrysodeixis includens and Spodoptera frugiperda to different isolates of M. rileyi and, thus, determine a possible influence of the host of origin on the pathogenic activity of these isolates. Three isolates [CG1312 (C. includens as original host), CG381 (S. frugiperda as original host) and a new wild isolate (C. includens as original host)] were tested against larvae of C. includens and S. frugiperda, in third instar age, by treatment of surfaces with... |
| Tipo: Artigo de periódico |
Palavras-chave: Biopesticida; Largarta falsa-medideira; Lagarta-do-cartucho; Muscardine verde; Fungo entomopatogênico; Biopesticide; Soybean looper; Fall armyworm; Green muscardine; Entomopathogenic fungus. |
| Ano: 2020 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1130292 |
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| Registros recuperados: 10 | |
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