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| Registros recuperados: 585 | |
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| Barbosa,Maria Angélica G.; Rehn,Kurt Georg; Menezes,Maria; Mariano,Rosa de Lima R.. |
| The verrucose caused by Cladosporium herbarum reduces production and quality of Passion fruit (Passiflora edulis Sims.), a largely consumed tropical fruit. This work aimed to investigate the antagonism of Trichoderma species (T. polysporum, T. koningii, T. viride and T. harzianum) against Cladosporium herbarum, and to study the production of extracellular hydrolytic enzymes by the pathogen and the antagonists. The results showed considerable antagonistic potential for the biocontrol of C. herbarum isolates by all Trichoderma species, except T. koningii. The most distinguished effect was observed for T. polysporum. In relation to the pattern of esterase obtained by electrophoresis in poliacrylamyde gel, the major activity presented by the isolates was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Passion fruit; Biological control; Extracellular enzymes; Fungi. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822001000200005 |
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| Ferraz,Hélvio Gledson Maciel; Resende,Renata Sousa; Moreira,Poliana Coutinho; Silveira,Patrícia Ricardino; Milagres,Elisângela Aparecida; Oliveira,José Rogério; Rodrigues,Fabrício Ávila. |
| AbstractTomato bacterial spot on tomato may be caused by four species of Xanthomonas and among them X. gardneri(Xg) is the most destructive one, especially in areas irrigated using a center pivot system in Minas Gerais state and the midwest region of Brazil. Due to the ineffectiveness of chemical control and the lack of cultivars with high levels of genetic resistance, this study investigated the potential of three antagonists (Streptomyces setonii (UFV618), Bacillus cereus (UFV592) and Serratia marcescens (UFV252)), and the hormone jasmonic acid (JA) as a positive control, to reduce bacterial spot symptoms and to potentiate defense enzymes in the leaves of tomato plants infected by Xg. Tomato seeds were microbiolized with each antagonist, and the soil was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Xanthomonas gardneri; Solanum lycopersicum; Biological control; Host defense mechanisms; Induced resistance. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052015000400417 |
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| Cai,Jin; Gao,Yichen; Wang,Mengliang; Zhang,Jing; Zhang,Yongbin; Wang,Qi; Liu,Jiquan. |
| Abstract Clavibacter michiganensis subsp. michiganensis (Cmm), which is a Gram positive bacterium, causes the bacterial canker of tomato disease. The purpose of the study was to evaluate the antibacterial activity of Polygonum orientale extracts against Cmm. In this study, firstly, effects of three extracting parameters (extractive time, extractive temperature, and solid to liquid ratio) of orthogonal experiment design L27 (313) were conducted. Secondly, survival rate was determined and inhibition zone of Cmm rescued post-stress was monitored. Finally, extracellular OD260nm value, extracellular protein content, conformational structure of membrane protein, extracellular alkaline phosphatase (AKP) activity, and ATPase activity were measured to investigate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Plant bioactive compounds; Antibacterial agent; Plant pathogenic bacterium; Orthogonal experiment design; Biological control. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100217 |
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| Frederic,Jean B; Costa,Cândido A da; Rocha,Fernando da S; Fernandes,Maria de Fátima G. |
| ABSTRACT Mixture of antagonist agents and form of application may influence in the control of root-knot nematodes. Thus, the aim of this work was to study the action of a biological product based on enzyme mixtures, Bacillus sp. and Trichoderma sp., at different concentrations on hatching, motility, mortality and reproduction of Meloidogyne incognita in tomato, considering two ways of application of the product. Eggs and second-stage juveniles (J2) of M. incognita were placed in biological product solutions at concentrations: 0, 1.25, 2.5, 5, 10, 20 and 40 g L-1. The same concentrations were applied to planting pits or to the soil surface. Afterwards, 3,692 eggs of M. incognita were inoculated in tomato crop. A significant reduction in J2 hatching of M.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacillus spp.; Trichoderma longibrachiatum; Root-knot nematodes; Enzymes; Biological control. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000300254 |
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| CAMPOS,LUCAS S.; COELHO JR,ALOISIO; PARRA,JOSÉ ROBERTO P.. |
| ABSTRACT The Brazilian Poplar Moth, Condylorrhiza vestigialis (Guenée), compromises the wood productivity of poplar trees (Populus sp.), mainly affecting the matchstick industry in southern Brazil. Considering the lack of information on rearing techniques for this insect, the objective of this study was to develop an artificial diet to rear C. vestigialis with biological characteristics similar to the wild insects. A properly diet will enable bio-ecological studies and biological control programs using the baculovirus Condylorrhiza vestigialis multiple nucleopolyhedrovirus (CvMNPV). To attain this objective, first, three artificial diets were tested. Only the diet based on corn, wheat germ and yeast as a protein source (Diet 3) was able to supply the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: IPM; Biological control; Forest entomology; Baculovirus. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000100333 |
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| MONTEIRO, N. V.; SARAIVA, W. V. A.; DIAS, N. da S.; MACIEL, G. P. DE S.; VASCONCELOS, J. F.; DUARTE, P. M.; MELO, J. W. DA S.; RODRIGUES, S. M. M.. |
| Uma alternativa ao uso de produtos químicos para o controle de artrópodes fitófagos em ambientes agrícolas é a utilização de agentes de controle biológico. O objetivo deste estudo foi avaliar o desenvolvimento de Chrysoperla externa (Hagen, 1861) (Neuroptera, Chrysopidae) alimentado com ovos, ninfas e adultos da mosca-branca-do-cajueiro, Aleurodicus cocois (Curtis, 1846) (Hemiptera: Aleyrodidae) e ovos da traça-da-farinha, Anagasta kuehniella (Zeller, 1879) (Lepidoptera: Pyralidae). Diariamente, larvas recémeclodidas de C. externa foram alimentadas ad libitum com as presas fornecidas |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Crisopídeo; Mosca-branca-do-cajueiro; Green lacewing; Giant whitefly; Aleurodicus Cocois; Anagasta Kuehniella; Controle Biológico; Chrysoperla externa; Biological control. |
| Ano: 2021 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130075 |
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| Rezende,Maria A.A; Cruz,Ivan; Lucia,Terezinha M.C. Della. |
| Biological aspects of Chelonus insularis (Cresson, 1865) an egg-larval parasitoid reared on Spodoptera frugiperda (Smith, 1797) eggs Chelonus insularis (Cresson. 1865) has been cited in the international literature as a promissing biological control agent against the fall armyworm, Spodoptera frugiperda (Smith, 1797). Its field occurrence in Sete Lagoas, Minas Gerais (Brasil) has been increasing in the last years. For these reasons this experiment was conducted in the laboratory, at the National Corn and Sorghum Research Center, of EMBRAPA, under temperature of 25ºC. RH of 73% and photophase of 12 hours. Ten couples of the parasitoid were individually placed in a glass jar (5 liters capacity). They were fed on a 10% sugar solution. Each couple received one... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Braconidae; Chelonus insularis; Noctuidae; Spodoptera frugiperda; Biological control. |
| Ano: 1995 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751995000400007 |
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| Hodur, Nancy M.; Leistritz, F. Larry; Bangsund, Dean A.. |
| Leafy spurge is an exotic, noxious, perennial weed which is widely established in the north central United States and is an especially serious problem in the northern Great Plains. In 1997, the Agricultural Research Service and the Animal and Plant Health Inspection Service of the U.S. Department of Agriculture (USDA), initiated a major Integrated Pest Management (IPM) research and demonstration project, TEAM Leafy Spurge (TLS), to develop and demonstrate ecologically based IPM strategies that can produce effective, affordable leafy spurge control. A key component of the project was to expand the use of biological control (biocontrol) agents, specifically flea beetles. To assess the level of insect establishment and the level of current and perceived... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Leafy spurge; Biological control; Apthona lacertosa/czwalinae; Flea beetle; Noxious weeds; Weed management; Resource /Energy Economics and Policy. |
| Ano: 2004 |
URL: http://purl.umn.edu/23643 |
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| Costa,Juliana R V da; Rossi,Juliana R; Marucci,Suzana C; Alves,Eliane C da C; Volpe,Haroldo X L; Ferraudo,Antonio S; Lemos,Manoel V F; Desidério,Janete A. |
| Aedes aegypti (L.), the main vector of dengue fever in Brazil, has been controlled with the use of massive chemical products, contributing to the development of resistance and decreasing the insect control efficiency. The control of dipterans with bioinsecticides based on Bacillus thuringiensis has been satisfactory, due to the production of insecticidal proteins denominated Cry (crystal), Cyt (cytolytic) toxins and Chi (chitinase), and to the synergistic effects among them. The present work aimed to select B. thuringiensis isolates efficient against A. aegypti larvae. A bacterial collection containing 1,073 isolates of B. thuringiensis, obtained from different locations of Brazilian territory, had the DNA isolated and submitted to PCR amplifications using... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological control; Cry; Cyt; Chitinase; Dengue fever. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000500015 |
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| Registros recuperados: 585 | |
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