The Abundance and Population Dynamics of Leptocybe invasa (Hymenoptera: Eulophidae) Galls on Eucalyptus spp. in China

@article{Zhu2012TheAA,
  title={The Abundance and Population Dynamics of Leptocybe invasa (Hymenoptera: Eulophidae) Galls on Eucalyptus spp. in China},
  author={Fangjun Zhu and S. Ren and Baoli Qiu and Z. Huang and Zheng-qiang Peng},
  journal={Journal of Integrative Agriculture},
  year={2012},
  volume={11},
  pages={2116-2123}
}
Abstract The blue gum chalcid, Leptocybe invasa Fisher & La Salle, invaded China in 2007 and has subsequently caused substantial damage to eucalyptus trees. In the current paper, we investigated the susceptibility of 10 Eucalyptus spp. and Eucahetus dunnii to L. invasa in the field, determined the density of galls as well as the gall volume on these tree species, and monitored the population dynamics of wasps in Hainan and Guangdong provinces of China. The order of susceptibility to L. invasa… Expand
Susceptibility of eucalyptus species and hybrids to the gall wasp Leptocybe invasa (Hymenoptera: Eulophidae) in northern Misiones, Argentina
TLDR
This study suggests that in Misiones, E. tereticornis is the most sensible eucalyptus species to gall wasp attack, whereas other species and hybrids presented low damage levels or tolerance to L. invasa region. Expand
The gall wasp Leptocybe invasa (Hymenoptera: Eulophidae) stimulates different chemical and phytohormone responses in two Eucalyptus varieties that vary in susceptibility to galling
TLDR
The results suggest that the effects of gall-inducing insects on plants depend not only on the susceptibility of the plant infested but also on the developmental stage of galled tissues. Expand
Longevity and survival of Leptocybe invasa (Hymenoptera: Eulophidae), an invasive gall inducer on Eucalyptus, with different diets and temperatures
TLDR
Biological aspects need to be studied to assist in developing management strategies and to maintain this insect in the laboratory to rear the parasitoid Selitrichodes neseri Kelly & La Salle that depends on having a supply of Eucalyptus seedlings infested by L. invasa. Expand
Terpenes associated with resistance against the gall wasp, Leptocybe invasa, in Eucalyptus grandis.
TLDR
Testing the hypothesis that specific terpenes are associated with pest resistance in a Eucalyptus grandis half-sib population found that susceptibility was associated with increased γ-terpinene and α-pinene, whereas reduced susceptibility wasassociated with iso-pinocarveol, which may act to recruit parasitoids or have direct toxic effects. Expand
Differential development time of galls induced by Leptocybe invasa (Hymenoptera: Eulophidae) reveal differences in susceptibility between two Eucalyptus clones.
TLDR
This is the first study showing differential morphological responses induced by a galling insect, even before gall formation, revealing differences in susceptibility between different plant hosts, and identifies a novel stage of gall development, not previously reported. Expand
Serangga yang berasosiasi dengan puru daun eukaliptus di Kabupaten Humbang Hasundutan dan Samosir, Provinsi Sumatra Utara
TLDR
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Galling impacts of the gall wasp Leptocybe invasa (Hymenoptera: Eulophidae) on Eucalyptus trees vary with plant genotype
Impacts of galling on the distributions of plant metabolites can vary greatly with plant genotype. In this study, two Eucalyptus genotypes with different resistance levels were chosen, and the levelsExpand
The Distribution and Management of Two Invasive Pests of Eucalyptus: The Red Gum Lerp Psyllid, Glycaspis brimblecombei (Hemiptera: Psylloidae), and the Blue Gum Chalcid Wasp, Leptocybe invasa (Hymenoptera: Eulophidae), in Zimbabwe
TLDR
The distribution of the two pests as well as the possibility of managing L. invasa through biological control by releasing and recovering successive generations of the natural enemy Selitrichodes neseri were determined using Maximum Entropy ecological niche modelling. Expand
Effect of temperature on life table parameters of Leptocybe invasa (Hymenoptera: Eulophidae)
TLDR
The results showed that farmers or managers of forests could predict the population dynamics of the wasp and adopt physical or chemical methods to control it according to the temperature, and the intrinsic rate of natural increase indicates that L. invasa population growth is likely to be greatest at 29°C. Expand
Genomic Breeding for Diameter Growth and Tolerance to Leptocybe Gall Wasp and Botryosphaeria/Teratosphaeria Fungal Disease Complex in Eucalyptus grandis
TLDR
This study analyzed Lepto, BotryoTera, and stem diameter growth in an E. grandis multi-environmental, genetic trial and proposes a genomic selection breeding strategy for E.grandis that addresses some of the present population structure problems. Expand
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