Microbial biopesticides for control of invertebrates: Progress from New Zealand

Glare, Travis R.; O’Callaghan, Maureen

doi:10.1016/j.jip.2017.11.014

Cited by 40 publications

(20 citation statements)

References 24 publications

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“…The P. hermaphrodita strain that became Nemaslug1 was isolated in Bristol, England [18]. With increased interest in this potential biocontrol there has been increased surveying efforts; P. hermaphrodita has also been discovered in Chile [27], Iran [28], Egypt [29], and more recently in New Zealand [30,31] and the west coast of North America [32,33]. It remains unclear, however, whether these reported observations of P. hermaphrodita in non-European locations constitute previously unknown natural populations of the species, or instead resulted from the introduction of Nemaslug1.…”

Section: Plos Onementioning

confidence: 99%

“…With increased interest in this potential biocontrol there has been increased surveying efforts; P . hermaphrodita has also been discovered in Chile [ 27 ], Iran [ 28 ], Egypt [ 29 ], and more recently in New Zealand [ 30 , 31 ] and the west coast of North America [ 32 , 33 ]. It remains unclear, however, whether these reported observations of P .…”

Section: Introductionmentioning

confidence: 99%

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Phylogenetic evidence for the invasion of a commercialized European Phasmarhabditis hermaphrodita lineage into North America and New Zealand

Howe

Colton

et al. 2020

PLoS ONE

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Biological control (biocontrol) as a component of pest management strategies reduces reliance on synthetic chemicals, and seemingly offers a natural approach that minimizes environmental impact. However, introducing a new organism to new environments as a classical biocontrol agent can have broad and unanticipated biodiversity effects and conservation consequences. Nematodes are currently used in a variety of commercial biocontrol applications, including the use of Phasmarhabditis hermaphrodita as an agent targeting pest slug and snail species. This species was originally discovered in Germany, and is generally thought to have European origins. P. hermaphrodita is sold under the trade name Nema-slug®, and is available only in European markets. However, this nematode species was discovered in New Zealand and the western United States, though its specific origins remained unclear. In this study, we analyzed 45 nematode strains representing eight different Phasmarhabditis species, collected from nine countries around the world. A segment of nematode mitochondrial DNA (mtDNA) was sequenced and subjected to phylogenetic analyses. Our mtDNA phylogenies were overall consistent with previous analyses based on nuclear ribosomal RNA (rRNA) loci. The recently discovered P. hermaphrodita strains in New Zealand and the United States had mtDNA haplotypes nearly identical to that of Nemaslug®, and these were placed together in an intraspecific monophyletic clade with high support in maximum likelihood and Bayesian analyses. We also examined bacteria that co-cultured with the nematode strains isolated in Oregon, USA, by analyzing 16S rRNA sequences. Eight different bacterial genera were found to associate with these nematodes, though Moraxella osloensis, the bacteria species used in the Nemaslug® formulation, was not detected.

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Section: Plos Onementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Phylogenetic evidence for the invasion of a commercialized European Phasmarhabditis hermaphrodita lineage into North America and New Zealand

Howe

Colton

et al. 2020

PLoS ONE

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“…Pseudomonas species are commonly found as part of the healthy ora in the oral cavity and intestinal tracts of venomous reptiles. These can produce toxins and can kill insects and other organisms by affecting the gut epithelium [32,33]. The relative abundance of Spiroplasma in S. geminata was signi cantly higher than those in D. rugosum and S. invicta.…”

Section: Discussionmentioning

confidence: 99%

Identification and Diversity of Bacterial Communities Associated with the Venom Glands of the Fire Ant, Solenopsis invicta Buren (Hymenoptera: Formicidae)

Yang

Chen

et al. 2020

Preprint

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Background Ant-microbe interactions that naturally occur in the venom microenvironment remain mostly unknown. To best of our knowledge, no research exists that shows the identity and diversity of bacterial communities in the fires ants, and what adaptive advantages that venom-associated microbes might offer to their hosts or that hosts might provide to venom-associated bacteria. This study assessed the diversity and identity of bacteria associated with the venom glands of Solenopsis invicta and compared this community with the bacterial communities of two other stinging ants, Solenopsis geminata and Diacamma rugosum. Results The major phylum associated with the venom glands of S. invicta (workers, alates, and queens) and S. geminata (workers) was Proteobacteria, while Firmicutes were abundant in the venom glands of D. rugosum (workers). Tenericutes were also more abundant in the venom glands of S. invicta queens than in those of workers and alates. The relative abundance of Spiroplasma in S. geminata was significantly higher than those in D. rugosum and S. invicta. A microbial diversity analysis of venom glands of worker ants of Solenopsis species showed that the relative abundances of Bacillus and Lactococcus were higher in Guangxi S. invicta workers than in workers collected from Guangzhou. However, the abundance of Lactococcus in workers of D. rugosum was higher than those in workers of S. geminata from Guangxi and S. invicta collected from Guangzhou. Conclusions This study provides the first insight into the microbiota in the venom glands of S. invicta, S. geminata, and D. rugosum, which might contribute to a more comprehensive view of the role of bacteria in the synthesis or degradation of active venom components in the host. We hypothesized that the differences in bacterial communities of three ant species could be due to the local adaptation of insects along with the coevolution of bacteria and hosts.

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“…However, it is essential to solve the problem of the commercialized production of A. limonicus in New Zealand . Importing A. limonicus from Europe might be problematic, because the importation of biological control agents needs to be registered and a permit needs to be applied for in New Zealand, and the mass rearing food source, Carpoglyphus lactis (L.) (Acari: Carpoglyphidae), present a high risk to New Zealand biosecurity because the food source might mix with some other unknown organisms ( e.g . storage mites, pathogens) …”

Section: Discussionmentioning

confidence: 99%

Provisioning predatory mites with entomopathogenic fungi or pollen improves biological control of a greenhouse psyllid pest

Liu

Zhang

Beggs

et al. 2019

Pest Management Science

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BACKGROUND Tomato/potato psyllid (TPP), Bactericera cockerelli (Šulc), is a recently established invasive pest of solanaceous crops in New Zealand. No alternative control strategies are available against TPP due to the development of insecticidal resistance. We investigated the combined use of the predatory mites Amblydromalus limonicus or Neoseiulus cucumeris with either the fungus Beauveria bassiana (suspensions and dry conidia) or with Typha orientalis pollen as a control of TPP in greenhouse bell pepper over 7 weeks. RESULTS All treatments significantly reduced TPP densities compared with the control. A. limonicus resulted in significantly lower TPP densities than any other combination with N. cucumeris. B. bassiana suspensions did not affect A. limonicus densities when they were combined. However, the application of dry B. bassiana conidia significantly reduced the densities of A. limonicus. The use of T. orientalis pollen resulted in significantly higher densities of A. limonicus but densities of N. cucumeris did not increase. The combined use of A. limonicus with B. bassiana suspensions or T. orientalis pollen resulted in significantly decreased TPP populations and greater crop yield. CONCLUSION The synergistic application of A. limonicus with B. bassiana suspensions could be a suitable strategy to control TPP in the greenhouse. © 2019 Society of Chemical Industry

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Microbial biopesticides for control of invertebrates: Progress from New Zealand

Cited by 40 publications

References 24 publications

Phylogenetic evidence for the invasion of a commercialized European Phasmarhabditis hermaphrodita lineage into North America and New Zealand

Phylogenetic evidence for the invasion of a commercialized European Phasmarhabditis hermaphrodita lineage into North America and New Zealand

Identification and Diversity of Bacterial Communities Associated with the Venom Glands of the Fire Ant, Solenopsis invicta Buren (Hymenoptera: Formicidae)

Provisioning predatory mites with entomopathogenic fungi or pollen improves biological control of a greenhouse psyllid pest

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