Data/hora: 13/06/2024 05:29:47

Provedor de dados: | 92
País: | Brazil
Título: | An experimental test of rainfall as a control agent of Glycaspis brimblecombei Moore (Hemiptera, Psyllidae) on seedlings of Eucalyptus camaldulensis Dehn (Myrtaceae)
Autores: | Oliveira,Karla N.; Jesus,Fabiene M. de; Silva,Jhonathan O.; Espírito-Santo,Mário M. do; Faria,Maurício L.
Data: | 2012-03-01
Ano: | 2012
Palavras-chave: | Herbivory; Pest management; Red gum lerp psyllid.
Resumo: | An experimental test of rainfall as a control agent of Glycaspis brimblecombei Moore (Hemiptera, Psyllidae) on seedlings of Eucalyptus camaldulensis Dehn (Myrtaceae). Glycaspis brimblecombei is one the greatest threats to eucalyptus plantations in Brazil. The effects of rainfall to reduce the abundance of lerp of Glycaspis brimblecombei on experimentally infested seedlings of Eucalyptus camaldulensis were assessed. The number of lerps on the adaxial and abaxial surfaces of every leaf of 60 seedlings was recorded, before and after submission to the following treatments: "artificial rain", "leaf wetting" and control. A drastic reduction in lerp abundance per plant was observed after the treatments "leaf wetting" and artificial rain (F = 53.630; p &lt; 0.001), whereas lerp abundance remained roughly constant in the control treatment along the experiment (F = 1.450; p = 0.232). At the end of the experiment, lerp abundance was significantly lower in both the "artificial rain" and "leaf wetting" than in the control treatment. Two days of rainfall simulation were sufficient to decrease more than 50% of the lerp population, with almost 100% of effectiveness after 5 days of experiment. Our results indicate that lerp solubilization and mechanical removal by water are potential tools to the population regulation of G. brimblecombei on E. camaldulensis seedlings.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262012000100016
Editor: | Sociedade Brasileira De Entomologia
Relação: | 10.1590/S0085-56262012005000008
Formato: | text/html
Fonte: | Revista Brasileira de Entomologia  v.56 n.1 2012
Fonte: | info:eu-repo/semantics/openAccess