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Characterization of tolerance to citrus leafminer of Citrus and related genera. Repositório Alice
SANTOS, M.; PITTA, R. M.; RIBEIRO, L. do P.; DIAS, N. da S.; VENDRAMIM, J. D..
The aim of this study was to identify resistance of tolerance type in Citrus and Poncirus genotypes towards the citrus leafminer (CLM), Phyllocnistis citrella. The quantitative variables leaf and shoot lengths, leaf width, number of larvae and new shoots, and fresh and dry shoots weights, and qualitative variables associated with foliar damage were evaluated in six Citrus-related genotypes infested with CLM. In preliminary trials with lime Rough lemon (C. jambhiri), the variables that best discriminated the infestation effect of CLM were established as the numbers of larvae and new shoots per plant together with the percentages of partially rolled leaves (PRL), rolled leaves (RL) and total damage (TD = RL + PRL). In subsequent tests with all six genotypes,...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Resistance categories; Host selection; Poncirus genotypes; Phyllocnistis; Hosts; Sustainable agriculture; Pest management; Poncirus.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1110196
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Population fluctuation of Spodoptera frugiperda eggs and natural parasitism by Trichogramma in maize. Repositório Alice
DEQUECH, S. T. B.; CAMERA, C.; STURZA, V. S.; RIBEIRO, L. do P.; QUERINO, R. B.; PONCIO, S..
This study aimed to evaluate the fluctuation of S. frugiperda eggs and natural parasitism by Trichogramma and identify and quantify parasitoid species in maize fields in the state of Rio Grande do Sul, Brazil. Surveys were carried out in two growing seasons: in 2006/2007 we assessed one growing season (late sowing) in Santa Maria, and in 2007/2008 we assessed two growing seasons (early and late sowing) in Santa Bárbara do Sul. Daily air temperature and rainfall were recorded at both locations. In each evaluation, entire plants were examined for the presence or absence of S. frugiperda egg masses, which were analyzed for larvae hatching or parasitoid emergence. The number of S. frugiperda eggs is higher between 8 and 30 days after plant emergence,...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Lagarta-do-cartucho; Controle biológico; Zea mays; Biological control; Fall armyworm; Noctuidae; Trichogrammatidae.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/handle/doc/962559
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