Glycaspis brimblecombei (Hemiptera: Psyllidae) attack patterns on different Eucalyptus genotypes

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1 Department of Biology, Universidade Federal de Lavras, Lavras, Minas Gerais, Brazil
2 Department of Biology, Universidade Estadual de Montes Claros, Montes Claros, Minas Gerais, Brazil
3 Colegiado de Ecologia, Universidade Federal do Vale do São Francisco - UNIVASF, Senhor do Bonfim, Bahia, Brazil
4 Department of General Biology, Universidade Estadual de Montes Claros, Montes Claros, Minas Gerais, Brazil
5 Departamento de Entomologia/BIOAGRO, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
DOI
10.7287/peerj.preprints.2783v1
Published
Accepted
Subject Areas
Agricultural Science, Entomology, Plant Science
Keywords
Hybrid eucalypt, Biological control, Psyllaephagus bliteus, Red gum lerp psyllid, Water stress
Copyright
© 2017 Tuller et al.
Licence
This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ Preprints) and either DOI or URL of the article must be cited.
Cite this article
Tuller J, Oliveira KN, Silva JO, de Faria ML, do Espírito-Santo MM, Serrão JE, Zanuncio JC. 2017. Glycaspis brimblecombei (Hemiptera: Psyllidae) attack patterns on different Eucalyptus genotypes. PeerJ Preprints 5:e2783v1

Abstract

Background. The red gum lerp psyllid Glycaspis brimblecombei Moore (Hemiptera: Psyllidae), an eucalypt insect pest from Australia, was reported in Brazil in 2003. This study evaluated damage patterns of this pest and the parasitism rates of Psyllaephagus bliteus (Hymenoptera: Encyrtidae) on E. camaldulensis and its hybrids E. urophylla X E. camaldulensis and E. urophylla X E. grandis. Methods. Plantation plots of three eucalypt genotypes were evaluated over one year. The eucalypt leaves were collected and examined. Results. Damage by G. brimblecombei was lower on the hybrid genotypes and on the adaxial surface of the eucalypt leaves. Glycaspis brimblecombei egg and nymph density correlated negatively with monthly rainfall. Nymph parasitism by P. bliteus was low (2.9%) independent of genotype and did not vary throughout the year. Discussion. The use of less susceptible eucalypt genotypes (e.g., hybrids) seems to be an alternative to G. brimblecombei management because mortality rates for this pest resulting from P. bliteus parasitism were low.

Author Comment

This is a submission to PeerJ for review.

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