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Tipo: | Artigo |
Título: | Glycaspis brimblecombei (Hemiptera: Psyllidae) attack patterns on different Eucalyptus genotypes |
Autor(es): | Tuller, Juliana Oliveira, Karla Nunes Silva, Jhonathan Oliveira Faria, Maurício Lopes de Espírito-Santo, Mario Marcos do Serrão, José Eduardo Zanuncio, José Cola |
Abstract: | 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 on Eucalyptus camaldulensis Dehn (Myrtaceae) and its hybrids E. urophylla X E. camaldulensis (urocam) and E. urophylla X E. grandis (urograndis). In addition, parasitism rates of Psyllaephagus bliteus Riek (Hymenoptera: Encyrtidae) on G. brimblecombei collected on different eucalypt genotypes are reported. Plantation plots of three eucalypt genotypes were evaluated over one year. The eucalypt leaves were collected and examined for attack by G. brimblecombei. Nymph parasitism of G. brimblecombei by P. bliteus was recorded. Damage by G. brimblecombei was lower on the hybrid genotypes and on the adaxial surface of the eucalypt leaves. G. brimblecombei egg and nymph density were negatively correlated with monthly rainfall. Nymph parasitism of G. brimblecombei by P. bliteus was low (2.9%) independent of genotype and did not vary throughout the year. Our data indicate the use of less susceptible eucalypt genotypes (e.g., hybrids) as an alternative to G. brimblecombei management. Because of the current low mortality rates for G. brimblecombei resulting from P. bliteus parasitism, biological control with this natural enemy is not recommended as a management strategy for G. brimblecombei. |
Palavras-chave: | Hybrid eucalypt Biological control Psyllaephagus bliteus Red gum lerp psyllid Water stress |
Editor: | PeerJ |
Tipo de Acesso: | Open Access |
URI: | http://dx.doi.org/10.7717/peerj.3864 http://www.locus.ufv.br/handle/123456789/16502 |
Data do documento: | 24-Out-2017 |
Aparece nas coleções: | Artigos |
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artigo.pdf | texto completo | 1,51 MB | Adobe PDF | Visualizar/Abrir |
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