|
|
|
| Registros recuperados: 15 | |
|
|
| Boiça Júnior,Arlindo Leal; Campos,Zeneide Ribeiro; Lourenção,André Luiz; Campos,Alcebíades Ribeiro. |
| The silverleaf whitefly Bemisia tabaci B-biotype is an important pest of cotton; it affects plant vigour, transmits geminivirus and reduces lint quality. In order to evaluate the resistance of cotton genotypes, Gossypium hirsutum (L.), to the whitefly Bemisia tabaci B-biotype, both free-choice and no-choice attractiveness and non-preference for oviposition tests were carried out in a shade house, at room temperature. Low attractiveness to adults of this whitefly was observed for plants of genotypes Fabrika, CNPA Ita 90, Makina, Coodetec 407, and IAC 01-639 CPA 02-24, which may represent a resistance component of these genetic materials to the insect. Genotypes BRS Aroeira, Coodetec 406, Fabrika, and Coodetec 401 presented the non-preference-for-oviposition... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gossypium hirsutum L.; Aleyrodidae; Insecta; Silverleaf whitefly; Host plant resistance. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000200007 |
| |
|
|
| Gonçalves Franco da Silva,José Paulo; Lopes Baldin,Edson Luiz; Santana de Souza,Efrain; Lourenção,André Luiz. |
| Since it was first reported in Brazil in the 1990s, the B biotype of silverleaf whitefly (Bemisia tabaci Genn., Hemiptera: Aleyrodidae) has been recognized as an important pest in soybeans (Glycine max L.), reducing the productivity of this legume species in some areas of the country. As an alternative to chemical control, the use of resistant genotypes represents an important tool for integrated pest management (IPM). This study evaluated the performance of 10 soybean genotypes prior to whitefly infestation, by testing attractiveness and preference for oviposition in the greenhouse and antibiosis in the laboratory. In a multiple-choice test, 'IAC-17' was the least attractive to insects. In a no-choice test, 'IAC-17' was the least attractive for egg... |
| Tipo: Journal article |
Palavras-chave: Glycine max; Silverleaf whitefly; Host plant resistance; Attractiveness; Non-preference; Trichome. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000400009 |
| |
|
|
| Takahashi,Karina Manami; Berti Filho,Evoneo; Lourenção,André Luiz. |
| The silverleaf whitefly Bemisia tabaci (Genn.) B-biotype (= B. argentifolii) (Hemiptera: Aleyrodidae) is a polyphagous insect attacking many plant species of economic importance. A comparison study was conducted on the duration of the egg-to-adult period, and the percentage of hatching eggs of Bemisia tabaci (Genn.) B-biotype on collard (Brassica oleracea L. var. acephala D.C.), soybean(Glycine max (L.) Merr.) and tomato (Lycopersicon esculentum Mill.) plants, as well as the egg-to-adult period of Encarsia formosa (Gahan) on the 1st, 2nd, 3rd and 4th whitefly nymphal instars on these three plant species. The experiments were conducted in a laboratory (25ºC, 70 ± 10% RH, 14-hour photophase). The duration of the egg-to-adult period of B. tabaci was 19.8 days... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hymenoptera; Aphelinidae; Hemiptera; Aleyrodidae; Silverleaf whitefly. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000600011 |
| |
|
| |
|
|
| Lourenção,AL; Alves,AC; Melo,AMT; Valle,GE. |
| The silverleaf whitefly Bemisia tabaci biotype B is one of the most harmful insect pests for agricultural and vegetable crops. Beside the direct damage, it transmits pathogenic virus and induces plant physiological disorders, such as the squash silverleaf disorder. In this research we evaluated the development of leaf silvering in squash cultivars submitted to artificial infestation of B. tabaci biotype B. An experiment was conducted under field conditions, in Campinas, São Paulo State, Brazil, during the season 2003-2004. The germplasm (Cucurbita spp.) comprised of seven cultivars of summer squash and nine of bush squash. The experiment used a complete randomized blocks design, with 16 treatments (cultivars) and five replications. Each plot consisted of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cucurbita spp.; Bemisia tabaci (Genn.) biotype B; Aleyrodidae; Silverleaf whitefly; Squash silverleaf disorder. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362011000100019 |
| |
|
|
| Lourenção,André L.; Yuki,Valdir A.; Alves,Sérgio B.. |
| The first observations on the presence of Bemisia tabaci biotype B (=B. argentifolii) in Brazil were made in the beginning of the 1990s in the State of São Paulo. from then on, that whitefly has spread out to other States. In the summer of 1997/98, B. tabaci biotype B reached Guaíra-Miguelopólis, an area of the State of São Paulo not yet infested, with high populations of the insect, mainly in soybean, cotton and vegetable crops. In the the first week of February 1998, during a survey in an abandoned field of soybean, an epizootic of Aschersonia cf. goldiana was verified on that whitefly in the whole area, with total infection of nymphs in the lower surface of the leaves. At the same date, in two other soybean fields of the region, the incidence of this... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Aleyrodidae; Bemisia argentifolii; Silverleaf whitefly; Biological control; Coelomycetes. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591999000200020 |
| |
|
|
| Martinez,Sueli S.; Carvalho,Alfredo O. R. de; Vieira,Luiz G.; Nunes,Liliane M.; Bianchini,Anésio. |
| This work was carried out in order to identify Bemisia tabaci (Genn.) biotypes present in the state of Paraná and to determine their geographical distribution and host plants. About 50 adults were collected in several host crops, weeds and ornamental plants in North, Northwest, Northeast, West and Central areas of the state, from January to May, 1998 and 1999. The species were identified by means of RAPD-PCR, using the primer Operon H-16. Whitefly populations were detected mainly from February on, in both years, seldom achieving more than one adult per leaf. The insect was found in only 66% of the sampled areas. Bean golden mosaic was almost never observed during the period. Both biotype A and biotype B of B. tabaci were found in the State of Paraná, the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Silverleaf whitefly; Sweetpotato whitefly; RAPD; DNA variability. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80592000000300023 |
| |
|
|
| Baldin,Edson Luiz Lopes; Vendramim,José Djair; Lourenção,André Luiz. |
| The tomato (Lycopersicon spp.) productivity is severely reduced by attack of several insects and microorganisms. It is economically one of the most important crops that has been extensively cultivated in the Americas. Therefore, assays were performed in the greenhouse and the laboratory to evaluate the possible interaction between resistant tomato genotypes and plant extracts on the control of the pest Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae) biotype B. This evaluation was performed for genotypes IAC-Santa Clara, PI-134417, LA-716, PI-134418, and PI-127826, and aqueous extracts from seeds of Azadirachta indica A. de Jussieu (Rutales: Meliaceae), branches and leaves of Trichilia pallida Swartz (Rutales: Meliaceae). In the greenhouse, spraying with... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Aleyrodidae; Silverleaf whitefly; Host plant resistance; Botanical insecticide. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000500004 |
| |
|
| |
|
|
| Alves,Mariangela; Boscolo,Maurício; Fernandes,Odair Aparecido; Nunes,Maria Andréia. |
| The B-strain of Bemisia tabaci Gennadius is a key pest of several crops and chemical control is the main control method used by growers, although reduction in efficacy due to insecticide resistance has already been reported. The aim of this work was to investigate the insecticidal effect of an array of synthetic sucrose esters with the aliphatic and aromatic groups on whitefly adults. Sucrose butyrate, caprate, octanoate, palmitate, oleate, octaacetate, phthalate, benzoate, and sucrose diacetate hexaisobutyrate were tested. The solutions were prepared and applied on the adults caught on yellow sticky traps using the Potter spray tower. Long-chains sucrose aliphatic esters were more effective against the silverleaf whiteflies and the highest mortality was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sucroesters; Silverleaf whitefly; Pest control; Integrated pest management. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000600005 |
| |
|
|
| Lourenção,André Luiz; Costa,Valmir Antonio; Pereira,Lillian Silveira; Prado,Juliana Cardoso. |
| The parasitism of Bemisia tabaci (Genn.) biotype B nymphs on cotton plants was observed during a research on resistance of cotton genotypes to this whitefly. The experiment was set in a greenhouse at the Experimental Station of the Instituto Agronômico (IAC), in Campinas, São Paulo State, Brazil. Samples of the parasitized nymphs were collected and maintained in laboratory to monitor the parasitism and obtain the adult parasitoids. A total of 129 adult parasitoids were obtained, including one Encarsia inaron (Walker), 13 En. lutea (Masi), and 115 Eretmocerus mundus Mercet (Hymenoptera: Aphelinidae). This is the first report of Er. mundus in Brazil. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological control; Parasitism; Silverleaf whitefly. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052014000200010 |
| |
|
|
| Baldin,Edson LL; da Silva,José Paulo GF; Pannuti,Luiz Eduardo R. |
| The silverleaf whitefly, Bemisia tabaci biotype B, is currently one of the most important pests of melon, causing direct and indirect damage to plants, and significantly reducing production in the field. Due to the need for alternative methods of chemical control in melon crops, the melon cultivars AF-646, AF-682, Don Luis, Frevo, Jangada, Nilo, Vereda, Amarelo Ouro and Hales Best were assessed at field, greenhouse, and laboratory trials for resistance to whitefly B. tabaci biotype B. In general, 'Hales Best' and 'Amarelo Ouro' were the most resistant, showing oviposition non-preference against whitefly. The trichome density is associated with the variation in oviposition on the cultivars and should be further investigated in future work. These results may... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cucumis melo; Aleyrodidae; Silverleaf whitefly; Host plant resistance; Antixenosis; Antibiosis. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362012000400007 |
| |
|
|
| Silva,Márcia S; Lourenção,André L; Souza-Dias,José Alberto C de; Miranda Filho,Hilário da S; Ramos,Valdir J; Schammass,Eliana A. |
| The resistance of 24 potato genotypes to B. tabaci (Genn.) biotype B (Hemiptera: Aleyrodidae) was evaluated in five greenhouse experiments. The first experiment we evaluated the attractiveness and preference for oviposition in a free-choice test (randomized blocks, 24 treatments, and eight replications). In two other experiments we evaluated no-choice preference for oviposition (randomized blocks, six treatments, and ten replications). The whitefly egg-adult cycle was monitored using a statistical design in randomized blocks with five replications. Trichome density was evaluated in an experiment with 24 treatments and six replications, in a completely randomized design. In the free-choice test, potato genotypes NYL 235-4 and IAC-1966 were the most... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Aleyrodidae; Silverleaf whitefly; Host plant resistance. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362008000200018 |
| |
|
| |
|
|
| Fontes,Fernanda von Hertwig Mascarenhas; Colombo,Carlos Augusto; Lourenção,André Luiz. |
| Bemisia tabaci (Genn.) represents a complex of cryptic species that causes losses of many valuable crops. Even though there are differences in their ability to colonize hosts, transmit phytovirus and develop resistance to insecticides, the genetic differentiation of the insect populations is important for the adoption of control measures. Therefore, the genetic diversity of B. tabaci populations in economically important crops in Brazilian locations was characterized through a microsatellite analysis. Eight microsatellite markers were used for the analysis of eight populations, three in Solanum tuberosum (States of São Paulo, Minas Gerais and Bahia), two in Glycine max (States of São Paulo and Mato Grosso), one in Phaseolus vulgaris and Brassica oleracea... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: SSR; Biotype B; Population genetics; Silverleaf whitefly. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000100007 |
| |
| Registros recuperados: 15 | |
|
|
|
