Biological Control of Brontispa longissima in Western Samoa: An Ecological and Economic Evaluation

Voegelé, Jean

doi:10.1016/b978-0-444-88610-1.50031-0

Cited by 6 publications

(6 citation statements)

References 1 publication

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“…Although we did not investigate the mtDNA sequences of specimens from the Aru Islands because we could not obtain them, the specimens from nearby areas such as Australia and Papua New Guinea belonged to the PaciÞc clade, suggesting that the Þrst described B. longissima may have belonged to the PaciÞc clade and that the Aru Islands could have been the initial habitat of this clade. However, B. longissima was not reported in Western Samoa (where the PaciÞc clade was collected) before 1980 (Voegele 1989). It is likely that the beetle entered Samoa long after the divergence of the two clades, possibly in association with human activity.…”

Section: Discussionmentioning

confidence: 89%

Two Cryptic Species in Brontispa longissima (Coleoptera: Chrysomelidae): Evidence from Mitochondrial DNA Analysis and Crosses between the Two Nominal Species

Takano

Konishi

Takasu

et al. 2011

Annals of the Entomological Society of America

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The beetle Brontispa longissima (Gestro) (Coleoptera: Chrysomelidae) is a serious invasive pest of the coconut palm, Cocos nucifera I., in Southeast Asia and the Pacific region. Genetic analysis is essential to ecological and evolutionary study of such invasive species. We therefore conducted molecular analyses by using partial sequences (1044 bp) of the mitochondrial cytochrome oxidase subunit I (COI) genes of B. longissima collected from several locations. We found two monophyletic groups: one distributed over a limited area (Australia, Papua New Guinea, Samoa, and Sumba Island; referred to as the Pacific group) and the other collected from a wide area of Asia and the Pacific region (referred to as the Asian group). We compared the biological and morphological traits of the two groups. We found that insects in the Pacific group had a shorter developmental time from hatching to adult emergence, produced fewer eggs, and had a larger adult body size than insects in the Asian group. Elytral color patterns did not differ between the two groups. Our interpopulation crosses produced significantly fewer progeny than intrapopulation crosses, suggesting that B. longissima represents two cryptic species.

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Section: Discussionmentioning

confidence: 89%

Two Cryptic Species in Brontispa longissima (Coleoptera: Chrysomelidae): Evidence from Mitochondrial DNA Analysis and Crosses between the Two Nominal Species

Takano

Konishi

Takasu

et al. 2011

Annals of the Entomological Society of America

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“…To control populations of B. longissima, importation biological control has been conducted mainly using two specialist parasitoids, Asecodes hispinarum Boucek (Hymenoptera: Eulophidae) and Tetrastichus brontispae Ferriere (Hymenoptera: Eulophidae). Asecodes hispinarum was introduced into Western Samoa from Papua New Guinea in 1982, and populations of B. longissima subsequently decreased (Voegele 1989). Tetrastichus brontispae is native to Java and has been successfully introduced to several countries, including Sulawesi, Tahiti, Solomon Islands, New Guinea, and Western Samoa (Gutierrez 1978).…”

Section: Introductionmentioning

confidence: 99%

Artificial diets for rearing the coconut hispine beetle,Brontispa longissima(Coleoptera: Chrysomelidae), and their suitability to two specialist parasitoids

Ichiki

Murata

Takano

et al. 2011

Biocontrol Science and Technology

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The coconut hispine beetle, Brontispa longissima (Gestro), is a serious invasive pest that infests young unopened fronds of coconut palms (Cocos nucifera L.) in Southeast Asia. We previously developed the first artificial diet for rearing B. longissima larvae, which contained a leaf powder of young coconut fronds. Because the fronds are required for healthy growth of coconut palms, it is necessary to reduce their use for rearing the beetles. In this study, we tested two new artificial diets for the beetle larvae, which contained the leaf powders of mature coconut leaves or orchard grass (Dactylis glomerata L.). Brontispa longissima successfully developed from hatching to adulthood on both the mature coconut leaf diet and orchard grass diet. The beetles reared on the mature coconut leaf diet and orchard grass diet developed faster than those reared on the young coconut leaf diet. Fecundity and egg hatchability of beetles did not differ among the three diet treatments. We then examined the suitability of beetle larvae or pupae reared on each diet as hosts for two specialist endoparasitoids, Asecodes hispinarum Boucek and Tetrastichus brontispae Ferriere. The survival rate from oviposition to adult emergence for A. hispinarum was 43.8% in hosts reared on a young coconut leaf diet, 77.1% on a mature coconut leaf diet, and 85.7% on an orchard grass diet. For T. brontispae, the survival rate was 70.0% in hosts reared on the young coconut leaf diet, 38.1% on the mature coconut leaf diet, and 66.7% on the orchard grass diet. Our results indicate these artificial diets can be useful for rearing B. longissima and its two parasitoids, helping to reduce the costs of mass rearing these insects.

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“…Both larvae and adults feed on the soft tissues of young unfolded coconut leaflets that later become brown, dry, and die, resulting in the stunting of the palm, reduced nut production (as much as 50-70% in Samoa), and the death of the plant (Voegele, 1989;Acevedo et al, 2014). Due to the pest's high adaptability to environmental stressors and changing cultural practices, and its robustness and high reproductive rate, there is no effective strategy against it.…”

Section: Introductionmentioning

confidence: 99%

Transcriptome sequencing and analysis of the coconut leaf beetle, Brontispa longissima

Wang¹,

Liu²,

Li³

et al. 2015

Genet. Mol. Res.

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ABSTRACT. The coconut leaf beetle, Brontispa longissima, is a destructive pest of palm plants. Although its ecological and biological characteristics are well understood, its genetic information remains largely unknown. To advance our understanding of its molecular basis of biology and ecology, we sequenced and analyzed its whole transcriptome by using high-throughput Illumina paired-end sequencing technology. Approximately 8.08 Gb of clean reads were generated in a single run, which were assembled by using Trinity into 41,652 unigenes with an average length of 932 bp. By sequence similarity searches for known proteins, 23,077 (55.4%) unigenes were annotated by BLASTx searches against the NCBI non-redundant protein database. Of the unigenes assembled, 18,153 and 13,733 were assigned to Gene Ontology and Clusters of Orthologous Groups of proteins, respectively. In addition, 10,415 unigenes were mapped onto 247 pathways using the W. Yan et al. 8360©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 14 (3): 8359-8365 (2015) Kyoto Encyclopedia of Genes and Genomes Pathway database. These transcriptomic resources will facilitate gene identification and elucidate the molecular mechanisms of biological and ecological aspects underlying this palm pest, in order to design a new control strategy.

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Biological Control of Brontispa longissima in Western Samoa: An Ecological and Economic Evaluation

Cited by 6 publications

References 1 publication

Two Cryptic Species in Brontispa longissima (Coleoptera: Chrysomelidae): Evidence from Mitochondrial DNA Analysis and Crosses between the Two Nominal Species

Two Cryptic Species in Brontispa longissima (Coleoptera: Chrysomelidae): Evidence from Mitochondrial DNA Analysis and Crosses between the Two Nominal Species

Artificial diets for rearing the coconut hispine beetle,Brontispa longissima(Coleoptera: Chrysomelidae), and their suitability to two specialist parasitoids

Transcriptome sequencing and analysis of the coconut leaf beetle, Brontispa longissima

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