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Mendoza Peña, Estrella. |
El Huanglongbing (HLB) es una enfermedad de los cítricos que se caracteriza por causar áreas moteadas en hojas, generar frutos deformes y decolorados, semillas abortivas, causar pérdida paulatina de la producción y provocar que la muerte de los árboles infectados sea inevitable. El agente asociado a esta enfermedad es la bacteria Candidatus Liberibacter ssp., y en México es dispersada por el vector Diaphorina citri Kuwayama (Hemiptera: Liviidae). En el presente estudio, mediante el método de microextracción en fase solida (SPME) se recolectaron compuestos volátiles emitidos de brotes vegetativos (menores a 3 cm) sanos, así como de brotes infectados con Ca. L. asiaticus, de limón persa (Citrus latifolia Tanaka) y limón mexicano (Citrus aurantifolia... |
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Palavras-chave: Cítricos; SPME; Psílido asiático; B-ocimeno; D-limoneno; Brotes vegetativos; Citrus; Psyllid; B-ocimene; D-limonene; Vegetative shoots; Entomología y Acarología; Maestría. |
Ano: 2013 |
URL: http://hdl.handle.net/10521/2155 |
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Gómez-Torres,Mariuxi Lorena; Nava,Dori Edson; Parra,José Roberto Postali. |
Thermal hygrometric requirements for the rearing and release of Tamarixia radiata (Waterston) (Hymenoptera, Eulophidae). Tamarixia radiata is the main agent for the biological control of Diaphorina citri in Brazil with a parasitism rate ranging from 20 to 80%. This study investigated the influence of temperature on the development, fecundity and longevity of adults of T. radiata and the effect of relative humidity (RH) on their parasitism capacity and survival rate in the pre-imaginal period. The effect of temperature was assessed in the range between 15 and 35 ± 1ºC, 70 ± 10% RH, and a 14-h photophase. The RH effect was evaluated in the range from 30 to 90 ± 10%, temperature at 25 ± 1ºC, and photophase of 14-h. At 25ºC, circa 166.7 nymphs were... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological control; Capacity; Fecundity; Longevity; Psyllid. |
Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262014000300011 |
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Queiroz,Dalva Luiz de; Zanol,Keti M. R.; Oliveira,Edílson B.; Anjos,Norivaldo dos; Majer,Jonathan. |
Feeding and oviposition preferences of Ctenarytaina spatulata Taylor (Hemiptera, Psyllidae) for Eucalyptus spp. and other Myrtaceae in Brazil. The Australian psyllid, Ctenarytaina spatulata Taylor (Hemiptera, Psyllidae), was first detected in Brazil in 1994, where it was found on drought-affected shoots of Eucalyptus grandis in a plantation located in the northern part of Paraná State. The oviposition and feeding preferences of this psyllid were examined on 19 Eucalyptus species, one Eucalyptus hybrid (Cambiju), three Corymbia species and four native Myrtaceae species (Hexaclames edulis, Marlieria edulis, Plinia trunciflora, and Psydium sp.) under greenhouse conditions. The largest populations of C. spatulata were found on E. robusta and E. pellita, while... |
Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Exotic pest; Forest pest; Psyllid. |
Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262010000100023 |
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Costa,Marilia Gregolin; Barbosa,José Carlos; Yamamoto,Pedro Takao; Leal,Renata Moreira. |
The psyllid Diaphorina citri Kuwayama is one of the most important pests of citrus, mainly because it is the vector of the bacterium that causes huanglongbing (HLB) or 'Greening' disease. To study the spatial distribution of nymphs and adults of this pest, an experiment was carried out in two 'Valencia' sweet orange orchards, four and 12 years of age, established in Matão, central area of São Paulo state, Brazil. The following dispersion indices were used to study pest aggregation in the citrus plants: variance/mean relationship (I), index of Morisita (Iδ), coefficient of Green (Cx), the <img border=0 width=16 height=16 src="../../../../../img/revistas/sa/v67n5/a08form10.gif" align=absmiddle>exponent of negative binomial distribution, common k... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Citrus sinensis; Psyllid; Probability distributions; Negative binomial distribution. |
Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000500008 |
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