Pest Resistance
Mostrando 13-24 de 119 artigos, teses e dissertações.
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13. Resistance of sugarcane cultivars to Mahanarva fimbriolata
ABSTRACT The spittlebug Mahanarva fimbriolata (Stål) (Hemiptera: Cercopidae) is one of the most important pest of sugarcane in Brazil. Population control measures are currently restricted to the use of chemical insecticides and the fungus Metarhizium anisopliae, in part because very little information exists regarding the resistance of sugarcane cultivars.
Bragantia. Publicado em: 12/03/2018
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14. Resistance to Dichelops melacanthus (Hemiptera: Pentatomidae) in soybean genotypes of different maturity groups
ABSTRACT Some species of pentatomids stink bugs have global economic importance, damaging various plant species during the vegetative and reproductive phases. Dichelops melacanthus (Dallas) (Hemiptera: Pentatomidae), known as the green-belly stink bug, is part of the soybean stink bug complex in Brazil and has increasing importance in crops,with potential to
Bragantia. Publicado em: 15/05/2017
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15. Advances in induced resistance by natural compounds: towards new options for woody crop protection
ABSTRACT: The activation of defensive responses of plants is a promising tool for controlling pests in conventional agriculture. Over the last few years, several compounds have been studied to protect crops from pests, without displaying direct toxicity for pathogenic organisms. These compounds have the ability to induce a priming state on the plants that re
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-02
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16. Resistance mechanisms of sugarcane cultivars to spittlebug Mahanarva fimbriolata
ABSTRACT The spittlebug Mahanarva fimbriolata (Stål) (Hemiptera: Cercopidae) is one of the most important pests of sugarcane in Brazil. Measures for population control are currently restricted to the use of chemical insecticides and fungus Metarhizium anisopliae, in part because very little information exists regarding resistance of sugarcane cultivars. The
Sci. agric. (Piracicaba, Braz.). Publicado em: 2016-04
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17. Identification of the Er1 resistence gene and RNase S-alleles in Malus prunifolia var. ringo rootstock
Woolly apple aphid (WAA; Eriosoma lanigerum Hausm.) is a major insect pest that has significant economic impact on apple growers worldwide. Modern breeding technologies rely on several molecular tools to help breeders select genetic determinants for traits of interest. Consequently, there is a need for specific markers linked to the genes of interest. Apple
Sci. agric. (Piracicaba, Braz.). Publicado em: 2015-02
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18. Cytogenetic identification of wheat-Psathyrostachys huashanica amphiploid × triticale progenies for English grain aphid resistance
English grain aphid (EGA, Sitobion avenae Fabricius) is an important pest in wheat (Triticum aestivum L.). To develop EGA-resistant varieties, introducing the desirable genes from related species is regarded as an efficient avenue. In this study, the F1, F2 and F3 plants derived from the cross of EGA-susceptible wheat-Psathyrostachys huashanica Keng ex Kuo a
Sci. agric. (Piracicaba, Braz.). Publicado em: 2013-06
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19. A Química na agricultura: perspectivas para o desenvolvimento de tecnologias sustentáveis
Food production and preservation of the environment are among the challenges faced by contemporary society. In Brazil, as in most parts of the world, the possibility of increasing the agricultural area is limited by several factors. Thus, an increase in productivity through the application of innovative technologies is regarded as the best solution to overco
Quím. Nova. Publicado em: 2013
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20. Purification of trypsin inhibitor from seeds of Cicer arietinum (L.) and its insecticidal potential against Helicoverpa armigera (Hübner)
Trypsin inhibitors (TI) have crucial functions in plant defense against pests, and recent studies reveal their diversity in stress response. Disease and herbivore infestations are harmful to plant growth, but the response of TI in Cicer arietinum (L.) in Central India has been less studied. In the present study, we partially characterized the TI from Cicer a
Theor. Exp. Plant Physiol.. Publicado em: 2013
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21. Efeito da resistência de Spodoptera frugiperda (J.E.Smith, 1797) (Lepidoptera: Noctuidae) a lambda-cyhalothrin na interação com o milho geneticamente modificado (MON810) e na resposta imunológica ao parasitismo por Campoletis af / Effect of resistance of Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae) to lambda-cyhalothrin on the interaction with genetically modified maize (MON810) and the immune response to parasitization by Campoletis aff. flavicincta (Hymenoptera: Ichneumonidae)
Fitness costs of insect resistance to insecticides can be exploited by integrating other pest control strategies in Integrated Pest Management (IPM) programs. The objective of this research was to evaluate the existence of fitness costs associated with the resistance of Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae) to the pyrethroid insecticid
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/05/2012
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22. Herança da resistência da soja à podridão radicular de fitóftora, em variedades comerciais brasileiras
The phytophthora root rot (PRR), caused by Phytophthora sojae (Kaufman &Gerdman), is one of the most destructive soybean diseases and can provoke yield losses of up to 100%. PRR has occurred more frequently in Brazil since the season 2005/06, mainly in the South region. There are some resistant commercial varieties but their inheritance remains unknown. All
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/02/2012
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23. Evolution of insecticide resistance in non-target black flies (Diptera: Simuliidae) from Argentina
Black flies, a non-target species of the insecticides used in fruit production, represent a severe medical and veterinary problem. Large increases in the level of resistance to the pyrethroids fenvalerate (more than 355-fold) and deltamethrin (162-fold) and a small increase in resistance to the organophosphate azinphos methyl (2-fold) were observed between 1
Memórias do Instituto Oswaldo Cruz. Publicado em: 2012-06
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24. ResistÃncia genÃtica e induzida de Vigna unguiculata (L.) Walp. Ã Aphis craccivora Koch e sua amostragem / Genetic and induced resistance in Vigna unguiculata (L.) Walp. to Aphis craccivora Koch and its sampling
The objective of this work were: to evaluate resistance of cowpea genotypes [Vigna unguiculata (L.) Walp.] to the black aphid [Aphis craccivora Koch, 1854] and to study the genetic variability of these genotypes for this feature; to evaluate the possible inducible action of cis-jasmone to resistance to this pest; to study the spatial dispersion of the aphid
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/10/2011