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| Registros recuperados: 58 | |
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| Pérez Rodríguez, Jaime. |
| Una de las enfermedades más importantes en México y en todos los países donde se cultiva maíz, es la pudrición de la mazorca. Además de reducir el rendimiento del cultivo, esta enfermedad afecta las cualidades físicas, fisiológicas y fitosanitarias de las semillas. Los agentes causales reportados responsables de la pudrición de la mazorca, corresponden al género Fusarium (hongos transmitidos por semilla). Una forma fácil y accesible de manejar a estos patógenos es con el uso de fungicidas aplicados como tratamiento a la semilla. Sin embargo en México no existe información disponible sobre la eficacia de estos fungicidas contra las especies de Fusarium. Los objetivos en este estudio fueron: a) determinar la biodiversidad de las especies de Fusarium... |
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Palavras-chave: F. verticiilioides; F. proliferatum; F. subglutinans; F. poae; Tratamiento de semillas; Seed treatment; Fitopatología; Maestría. |
| Ano: 2014 |
URL: http://hdl.handle.net/10521/2310 |
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| Strausbaugh, C.A.; Wenninger, E.J.; Eujayl, Imad A.. |
| Curly top in sugarbeet can result in severe yield losses and is caused by Beet severe curly top virus (BSCTV) and other closely related Curtovirus spp. which are vectored by the beet leafhopper. Neonicotinoid seed treatments (Cruiser, NipsIt, and Poncho) have been shown to be an effective supplement to host resistance, but measures to extend control beyond the duration of seed treatment efficacy needs to be investigated. In 2012, a field study was arranged in a randomized complete block design with 8 replications and planted with the cultivar B-42. The 16 treatments included untreated and Poncho Beta treated seed with and without 6 foliar insecticides (applied 7 days before and 6 days after release of viruliferous beet leafhopper) and just Poncho and... |
| Tipo: Article |
Palavras-chave: Seed treatment; Sugarbeet; Insecticide. |
| Ano: 2013 |
URL: http://eprints.nwisrl.ars.usda.gov/1524/1/1451.pdf |
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| Strausbaugh, C.A.; Eujayl, Imad A.; Foote, P.. |
| Insect feeding and vectoring of viruses cause serious problems in sugarbeet production worldwide. In order to ameliorate insect and disease problems on sugarbeet, two seed treatments, Poncho Beta (60 g a.i. clothianidin + 8 g a.i. beta-cyfluthrin/100,000 seed) and Cruiser Tef (60 g a.i. thiamethoxam + 8 g a.i. tefluthrin/100,000 seed) were investigated (the neonicotinoid was tested alone in some trials). The two seed treatments and an untreated check were tested in a series of seven field trials from 2006 to 2008 along with various commercial sugarbeet cultivars in a randomized complete block design with eight replications per trial. Natural insect incidence and curly top symptoms were evaluated. Both Poncho and Cruiser provided significant reduction... |
| Tipo: Article |
Palavras-chave: Seed treatment; Sugarbeet; Insecticide. |
| Ano: 2010 |
URL: http://eprints.nwisrl.ars.usda.gov/1408/1/1378.pdf |
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| Strausbaugh, C.A.; Rearick, E.; Eujayl, Imad A.; Foote, P.. |
| Sucrose loss in sugarbeet storage is a concern for all roots, but particularly those stored under ambient conditions. In order to control or suppress insect issues in sugarbeet production and consequently improve root storability, two neonicotinoid seed treatments, Poncho Beta (60 g a.i. [active ingredient] clothianidin + 8 g a.i. beta-cyfluthrin/100,000 seeds) and Cruiser Tef (60 g a.i. thiamethoxam + 8 g a.i. tefluthrin/100,000 seeds), were used to produce roots from four commercial sugarbeet cultivars grown in Declo, ID. At harvest, eight-beet samples from each cultivar-treatment combination were collected and placed inside an outdoor pile. Samples were removed on approximately 30-day intervals beginning on December 6 and 8 in 2008 and 2009,... |
| Tipo: Article |
Palavras-chave: Seed treatment; Sugarbeet; Insecticide. |
| Ano: 2010 |
URL: http://eprints.nwisrl.ars.usda.gov/1409/1/1379.pdf |
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| Strausbaugh, C.A.; Wenninger, E.J.; Eujayl, Imad A.. |
| Curly top caused by Curtovirus species is a widespread disease problem vectored by the beet leafhopper in semiarid sugar beet production areas. The insecticide seed treatment Poncho Beta has proven to be effective in controlling curly top in sugar beet, but was only evaluated under light to moderate disease pressure. Thus, the insecticide seed treatments Poncho Beta, NipsIt INSIDE, and Cruiser Force were evaluated under severe curly top pressure (6 viruliferous beet leafhoppers per plant) in field studies during the 2010 and 2011 growing seasons on two commercial sugar beet cultivars. In addition, the foliar insecticides Movento, Provado, and Scorpion were also evaluated. The seed treatments and Scorpion reduced curly top symptoms by 33 to 41% (P... |
| Tipo: Article |
Palavras-chave: Curly top; Seed treatment; Sugarbeet; Insecticide. |
| Ano: 2012 |
URL: http://eprints.nwisrl.ars.usda.gov/1461/1/1426.pdf |
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| Strausbaugh, C.A.; Wenninger, E.J.; Eujayl, Imad A.. |
| Curly top in sugar beet caused by Beet curly top virus (BCTV) is an important yield limiting disease that can be reduced via neonicotinoid and pyrethroid insecticides. However the length of efficacy of these insecticides is poorly understood, so a series of field experiments was conducted with the seed treatment Poncho Beta (60 g a.i. clothianidin + 8 g a.i. beta-cyfluthrin/100,000 seed) and foliar treatment Asana (55.48 g a.i. esfenvalerate/ha). A series of four experiments were conducted in 2014 and repeated in 2015 with four treatments (untreated check, Poncho Beta, Asana, and Poncho Beta + Asana) which were arranged in a randomized complete block design with 8 replications. To evaluate efficacy, viruliferous (contain BCTV strains) beet leafhoppers... |
| Tipo: Article |
Palavras-chave: Curly top; Seed treatment; Sugarbeet; Insecticide. |
| Ano: 2016 |
URL: http://eprints.nwisrl.ars.usda.gov/1622/1/1579.pdf |
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| Chocorosqui,Viviane R.; Panizzi,Antônio R.. |
| Results of field evaluations indicated that the neotropical pentatomid Dichelops melacanthus (Dallas) is associated with wheat, Triticum aestivum L. In the no-tillage cultivation system, adults and nymphs were mostly found on the soil, near the plant stems and underneath crop residues of the preceding summer crop, usually soybean, Glycine max (L.) Merrill, or corn, Zea mays L. Wheat grown under the conventional cultivation system showed minimal bug attack. D. melacanthus caused substantial damage to no-tillage wheat plants, particularly to seedlings. Bug attack reduces the number of seed heads of up to 34%. Seed yield was reduced in 31% due to the bugs' feeding, compared to plants free of damage. All developmental phases of the wheat plant were susceptible... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Insecticide; No-tillage; Seed treatment; Stink bug. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2004000400014 |
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| Registros recuperados: 58 | |
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