Whitefly
Mostrando 13-24 de 69 artigos, teses e dissertações.
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13. Biological aspects of the beetle Delphastus davidsoni fed with whitefly eggs laid on tomato genotypes
Many plant breeding programs have incorporated plant resistance characteristics without considering how this resistance may affect the natural enemies of plant pests. We evaluated the biological aspects of Delphastus davidsoni (Gordon) fed with Bemisia tabaci B biotype eggs laid on tomato genotypes with different trichome densities and types. On LA1335 and N
Sci. agric. (Piracicaba, Braz.). Publicado em: 2014-10
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14. Biological traits and Life table parameters A and B biotype of Bemisia tabaci (Genn.) on cotton and rapeseed
The aim of this work was to construct life table of Bemisia tabaci (Gen.) A and B (silverleaf whitefly B. argentifolii Bellows and Perring) biotype (Hem.: Aleyrodidae) on two host plants; cotton, (Gossypium hirsutum L.) and rapeseed, (Brassica napus L.). Experiments were conducted in a growth chamber under 24 ± 2ºC, 55±3% RH and 16:8 (L:D) h photoperiod o
Braz. arch. biol. technol.. Publicado em: 2014-06
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15. Molecular characterization reveals Brazilian Tomato chlorosis virus to be closely related to a Greek isolate
Tomato chlorosis virus (ToCV, genus Crinivirus, family Closteroviridae) is a whitefly-transmitted crinivirus with a bipartite RNA genome. This virus is emerging as a serious threat to tomato crops worldwide. To date, only three complete genomic sequences of ToCV have been described from North America, Spain, and Greece isolates. In this study, we present the
Trop. plant pathol.. Publicado em: 26/07/2013
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16. Avaliação do efeito sistêmico de nanoformulações à base de derivados de nim (Azadirachta indica A. Juss) sobre Bemisia tabaci (Genn.) biótipo B (Hemiptera: Aleyrodidae) em tomateiro / Evaluation of the systemic effect of neem (Azadirachta indica A. Juss) nanoformulations against Bemisia tabaci (Genn.) biotype B (Hemiptera: Aleyrodidae) in tomato plants
A nanotecnologia é cada vez mais empregada em métodos alternativos de controle de pragas. Em virtude disso, nanoformulações foram preparadas com nanocápsulas (NC) utilizando os polímeros poli-metacrilato de metila (PMMA), poli-?-caprolactona (PCL) e poli- ?-hidroxibutirato (PHB) como agentes encapsulantes de duas moléculas inseticidas (azadiractina e
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/10/2012
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17. Identificação de isolados do Sida mottle virus e Sida micrantha mosaic virus não transmissíveis por Bemisia tabaci biótipo B que infectam maracujazeiros (Passiflora edulis f. flavicarpa) / Identification of Sida mottle virus and Sida micrantha mosaic virus isolates non transmissible by Bemisia tabaci biotype B infecting passionflower (Passiflora edulis f. flavicarpa)
Doenças causadas por virus do gênero Begomovirus (família Geminiviridae) são incomuns em espécies de passifloras. Nos últimos dez anos, entretanto, foram encontrados no Brasil begomovirus infectando passifloras em pomares nos municipios de São Fidelis (RJ), Paragominas (PA), Patos de Minas (MG) e Araguari (MG). Estes isolados foram transmitidos mecani
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/09/2012
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18. Ecologia química de Metamasius hemipterus, Rhynchophorus palmarum e Homalinotus coriaceus, e primeiro registro de Aleurodicus pseudugesii em coqueiro no Brasil / Chemical Ecology Metamasius hemipterus, Rhynchophorus palmarum and Homalinotus coriaceus, and first recorded in Aleurodicus pseudugesii coconut in Brazil
O coqueiro, Cocos nucifera, é cultivado em toda a faixa intertropical do planeta, incluindo o Brasil, principalmente na região Nordeste. Um dos fatores limitantes à produção são as pragas que causam danos em todas as fases do cultivo. Dentre estas, se destacam as coleobrocas (Rhynchophorus palmarum, Homalinotus coriaceus e Metamasius hemipterus) e a mo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/03/2012
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19. Genetic structure of a Brazilian population of the begomovirus Tomato severe rugose virus (ToSRV)
Begomoviruses are whitefly-transmitted single-stranded DNA viruses of great economic importance in the tropics and subtropics. Several begomovirus species have been reported in tomatoes in Brazil, but only a few predominate in the field, for unknown reasons. In this study begomovirus-infected tomato samples were collected in Viçosa, State of Minas Gerais, i
Trop. plant pathol.. Publicado em: 2012-10
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20. Resistência de genótipos de tomateiro à Bemisia tabaci (Genn.) (Hemiptera: Aleyrodidae) biótipo B. / Resistance in tomato genotypes to Bemisia tabaci (Genn.) (Hemiptera: Aleyrodidade) biotype B.
A mosca-branca Bemisia tabaci (Genn.) (Hemiptera: Aleyrodidae) destaca-se como uma das principais pragas do tomateiro no Brasil. A busca por cultivares resistentes, derivadas de tomateiros selvagens surge como oportunidade de redução dos problemas causados por esta praga. Assim, genótipos de tomateiro oriundos do cruzamento entre Solanum lycopersicum L. e
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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21. Silicon influence on resistance induction against Bemisia tabaci biotype B (Genn.) (Hemiptera: Aleyrodidae) and on vegetative development in two soybean cultivars
The potential of populations of Bemisia tabaci (Genn.) to become resistant to insecticides has stimulated research into alternative tactics of integrated pest management such as the induction of host-plant resistance. Recent data have shown that silicon can increase the degree of resistance of host plants to insect pests. Therefore the aim of our work was to
Neotropical Entomology. Publicado em: 2011-08
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22. Estrutura genética populacional de Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) utilizando marcadores microssatélites
We aimed to characterize the population genetic structure within and among five Bemisia tabaci (Gennadius) populations collected from different host plants and geographic regions by using microssatelites as a molecular marker. Each population was represented by 19 specimens. The host plants and geographic origins of these populations were described as follow
Neotropical Entomology. Publicado em: 2011-04
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23. Resistance of Soybean Genotypes to Bemisia tabaci (Genn.) Biotype B (Hemiptera: Aleyrodidae)
The silverleaf whitefly Bemisia tabaci (Genn.) biotype B has become a serious problem for soybean cultivation because it can significantly reduce soybean productivity. The use of soybean cultivars resistant to whitefly attack is an important strategy in an integrated pest management (IPM) program. This study evaluated the preference for oviposition and colon
Neotropical Entomology. Publicado em: 2011-02
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24. Factors affecting attack rate of whitefly on the eggplant.
The objective of this study was to determine the effects of weather, predators and parasitoids, canopy height and plant age, leaf chemical composition, levels of leaf N and K and leaf trichomes on the intensity of Bemisia tabaci attack on Solanum melongena. A higher density of nymph and whitefly adults was recorded at the base and medium of the plant compare
Pesquisa Agropecuária Brasileira. Publicado em: 2011