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| Huerta,Amanda; Faúndez,Miguel; Araya,Jaime E. |
| To determine the susceptibility of important species of eucalypt trees in Chile to Glycaspis brimblecombei Moore (Hemiptera: Psyllidae), an insect that was detected on Eucafyptus camaldulensis Dehn. in 2002 in Santiago, which causes defoliation of trees affected, and even their death in severe infestations, a field evaluation of an induced infestation was performed in 2004 of one-year-old plants of E. camaldulensis, E. nitens Deane & Maiden, and E. globulus Labill Growths of infested plants were compared with uninfested controls, using destructive sampling at 15, 30, 45, and 60 days. Also, observations were made regarding the duration of the development stages of the insect during two generations. The only species that was susceptible to the... |
| Tipo: Journal article |
Palavras-chave: Eucalyptus camaldulensis; Eucalyptus globulus; Eucalyptus nitens; Glycaspis brimblecombei; Red gum lerp psyllid. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202010000200003 |
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| Queiroz, Dalva Luiz de; Camargo, Joelma Melissa Malherbe; Dedecek, Renato Antonio; Oliveira, Edilson Batista; Zanol, Keti Maria Rocha; Melido, Raul Cesar Nogueira; Burckhardt, Daniel. |
| The use of silicon in forestry has increased recently as it is directly related to improved resistance to insect pests. The red gum lerp psyllid, Glycaspis brimblecombei, occurs in all eucalypt producing regions in Brazil. Two field experiments were conducted to study the effect of silicon applied to Eucalyptus camaldulensis on the psyllid population. In the first experiment, the applications were made via soil (calcium silicate) and leaves (potassium silicate) in a nine months old E. camaldulensis plantation. In the second experiment, we evaluated silicon on seedlings, incorporating it into the substrate (soil) or applying it on leaves (foliar). Monthly, for 24 months, the number of psyllid eggs and immatures were counted on leaf samples. The plant height... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Entomologia Florestal Psylloidea; Red gum lerp psyllid; Forest pest Psylloidea; Psilídeo de concha; Pragas florestais. |
| Ano: 2016 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/976 |
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