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| Registros recuperados: 90 | |
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| Becker,Walter F; Mueller,Siegfried; Santos,Janaína P dos; Wamser,Anderson Fernando; Suzuki,Atsuo; Marcuzzo,Leandro Luiz. |
| An alert system for tomato late blight was validated in an Integrated Production System (IP) in the 2006-2007 and 2007-2008 season in Caçador, Santa Catarina State, Brazil. The late blight is a destructive disease and demands 25 or more fungicide sprayings per season in a Conventional Production (CP) System. For the CP area, the chemical control was according to the growers' production systems and consisted of weekly sprays soon after planting. For the IP area, the criterion for the first fungicide spray was according to Machardy (1972) and for subsequent ones according to Wallin (1962), when the disease severity values (DSV) reached eight points. There was a decrease on the fungicide application in the IP, not only in the number of fungicide sprays... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum lycopersicum; Lycopersicon esculentum; Phytophthora infestans; Integrated pest management; IPM. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362011000400013 |
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| Costa,Ewerton M; Silva,Francisco EL; Araujo,Elton L. |
| ABSTRACT The leafminer [Liriomyza sativae (Diptera: Agromyzidae)] is one of the main pests of melon crop (Cucumis melo) in the states of Rio Grande do Norte and Ceará. Thus, adopting strategies to control this destructive insect is essential. The aim of this study was to evaluate the effect of aqueous neem seed extract, applied to soil via irrigation, on leafminer larvae, in the melon crop. An experiment was conducted in greenhouse, in completely randomized design, consisting of five treatments (four doses of aqueous neem seed extract: 1; 3; 5 and 10 g/100 mL) and the control consisting only of distilled water and 10 replicates (melon plants). The treatments were applied in a single dose, via soil irrigation. In the first stage of the evaluation, 24 hours... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cucumis melo; Azadirachta indica; Leafminer; Integrated pest management. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000300353 |
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| Inoue-Nagata,Alice K; Lima,Mirtes F; Gilbertson,Robert L. |
| ABSTRACT: Insect-transmitted viruses cause some of the most damaging and economically important diseases of crop plants, especially in tropical and subtropical regions. The geminiviruses, a group of single-stranded DNA viruses with unique twined icosahedral virus particles, are responsible for many of these diseases. Of particular importance are the geminiviruses transmitted by whiteflies (Bemisia tabaci), which are in the genus Begomovirus. This is the largest genus of plant viruses (in terms of number of species), and some are responsible for many devastating diseases in vegetable and fiber crops throughout the world. This review presents the current understanding of begomoviruses, the diseases they cause, and approaches for disease management. An... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Begomovirus; Golden mosaic; Integrated pest management; Whitefly; Bemisia tabaci.. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362016000100008 |
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| ARAUJO, O. G.; MENDES, S. M.; ROSA, A. P. S. A. da; MARUCCI, R. C.; SANTOS, C. D. dos; BARBOSOA, T. A. N.; DIAS, A. S.; CARVALHO, S. S. de S.. |
| Com intuito de subsidiar estratégias de manejo de pragas usando milho Bt no Rio Grande do Sul, onde são conhecidas e registradas diferentes populações de Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae), o objetivo deste trabalho foi avaliar os aspectos biológicos de populações dessa espécie provenientes de milho e arroz, oriundas de Pelotas- RS, mantidos em arroz e em milho expressando diferentes proteínas Bt. Avaliou-se sobrevivência e biomassa larval eimatura de duas populações de S. frugiperda mantidas em milho expressando proteínas Bt e em arroz. Os maiores valores de sobrevivência larval coincidiram com os maiores valores de biomassa (arroz e milho não Bt). Quanto à sobrevivência na fase imatura verificou-se que as larvas da... |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Lagarta-do-cartucho; Manejo integrado de praga; Manejo de resistência; Praga de planta; Lagarta; Zea mays; Oryza sativa; Plant pests; Insect larvae; Integrated pest management; Resistance management; Corn; Rice. |
| Ano: 2014 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1008563 |
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| CONTE, O.; OLIVEIRA, F. T. de; HARGER, N.; CORRÊA-FERREIRA, B. S.; ROGGIA, S.; PRANDO, A. M.; SERATTO, C. D.. |
| The root is an important organ which supplies water and nutrients to growing plants. Data related to root growth and nutrient uptake by tropical legume cover crops are limited. The objective of this study was to evaluate root growth of tropical legume cover crops and nutrient uptake and use efficiency under different phosphorus (P) levels. The P levels used were 0 (low), 100 (medium) and 200 (high) mg kg¡1 of soil and 5 cover crops were evaluated. Root dry weight, maximum root length, specific root length were significantly in fluenced by P and cover crop treatments. Maximum values of these root growth parameters were achieved with the addition of 100 mg P kg ¡1 soil. The P X cover crops interaction for all the macro and micron utrients, except manganese... |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Praga de planta; Soja; Controle integrado; Integrated pest management; Soybeans; Plant pests. |
| Ano: 2016 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1053139 |
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| BARBOSA, F. R.; QUINTELA, E. D.; OLIVEIRA, L. F. C. de. |
| O manejo integrado de pragas do feijoeiro-comum (MIP-Feijão), desenvolvido pela Embrapa Arroz e Feijão, visa auxiliar os produtores e técnicos nas decisões, racional e economicamente, para o controle de pragas do feijoeiro-comum. Para utilização dessa prática, se faz necessário o reconhecimento das pragas que causam danos à cultura, os inimigos naturais das pragas, a capacidade de recuperação das plantas aos danos causados pelos insetos, o número máximo de indivíduos das pragas que podem ser tolerados (nível de controle) e, quando necessário o controle, o uso de inseticidas de forma criteriosa. Com a utilização dessa tecnologia tem-se reduzido, em média, 60% das aplicações de inseticidas, com uma economia de 78% no custo de controle. Neste trabalho são... |
| Tipo: Circular Técnica (INFOTECA-E) |
Palavras-chave: MIP Feijão; Manejo integrado; Feijão; Phaseolus Vulgaris; Praga de Planta; Manejo; Controle Integrado; Beans; Plant pests; Integrated pest management. |
| Ano: 2021 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131913 |
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| Registros recuperados: 90 | |
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