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Control of red-gum lerp psyllid with formulated mycoinsecticides under semi-field conditions

Published online by Cambridge University Press:  28 June 2011

Mario Henrique Ferreira do Amaral Dal Pogetto*
Affiliation:
Laboratory of Biological Control Pest Forestry, Department of Vegetal Production, College of Agronomic Sciences, Botucatu, São Paulo State, Brazil
Carlos Frederico Wilcken
Affiliation:
Laboratory of Biological Control Pest Forestry, Department of Vegetal Production, College of Agronomic Sciences, Botucatu, São Paulo State, Brazil
Marcelo Júnior Gimenes
Affiliation:
Laboratory of Biological Control Pest Forestry, Department of Vegetal Production, College of Agronomic Sciences, Botucatu, São Paulo State, Brazil
Rafael de Souza Christovam
Affiliation:
Laboratory of Biological Control Pest Forestry, Department of Vegetal Production, College of Agronomic Sciences, Botucatu, São Paulo State, Brazil
Evandro Pereira Prado
Affiliation:
Laboratory of Biological Control Pest Forestry, Department of Vegetal Production, College of Agronomic Sciences, Botucatu, São Paulo State, Brazil
*
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Abstract

This study evaluated the potential use of commercial mycoinsecticide formulations against red-gum lerp psyllid Glycaspis brimblecombei Moore in semi-field conditions. Eucalypt seedlings infested with psyllid nymphs were sprayed with different formulations and two concentrations of each product. Conidial deposits were evaluated after spraying for control efficiency. The conidial deposit was affected by the pathogen species and by formulation types. Higher conidial deposits were associated with mycoinsecticide formulation concentrates of lower granulometry and oil dispersion. However, some products with low deposits of conidia were highly efficient against psyllid nymphs. The results showed that the use of entomopathogenic fungi is a promising alternative method for controlling the red-gum lerp psyllid.

Type
Research Paper
Copyright
Copyright © ICIPE 2011

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