Laboratory host range testing of Lilioceris sp. near impressa (Coleoptera: Chrysomelidae) – a potential biological control agent of air potato, Dioscorea bulbifera (Dioscoreaceae)

@article{Pemberton2010LaboratoryHR,
  title={Laboratory host range testing of Lilioceris sp. near impressa (Coleoptera: Chrysomelidae) – a potential biological control agent of air potato, Dioscorea bulbifera (Dioscoreaceae)},
  author={Robert W. Pemberton and Gloria L. Witkus},
  journal={Biocontrol Science and Technology},
  year={2010},
  volume={20},
  pages={567 - 587}
}
Abstract Air potato, Dioscorea bulbifera, is an invasive, herbaceous, climbing vine, which dominates invaded native vegetation in Florida. The fortuitous discovery of Lilioceris sp. near impressa defoliating D. bulbifera vines and feeding on the bulbils (aerial tubers) in the Katmandu Valley of Nepal initiated a project to assess the potential of this leaf beetle for biological control of air potato in Florida. Quarantine host specificity tests were conducted on 41 plant species in 24 families… Expand
Herbivory by the biocontrol agent Lilioceris cheni suppresses propagule production and smothering ability of the invasive vine Dioscorea bulbifera
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Results show that L. cheni has the ability to suppress the invasive attributes of D. bulbifera in its adventive range. Expand
Comparative Evaluation of Development and Reproductive Capacity of Two Biotypes of Lilioceris cheni (Coleoptera: Chrysomelidae), Biological Control Agents of Air Potato (Dioscorea Bulbifera) in Florida
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The shorter generation time of Nepalese beetles resulted in a higher intrinsic rate of population increase, despite much higher fecundity of Chinese beetles, which may allow a more rapid population increase in the field, and thus, greater damage to air potato plants. Expand
Phenological synchrony between a weed (Dioscorea bulbifera) and a biocontrol agent (Lilioceris cheni) in the introduced range, Florida: implications for biological control
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Air and soil temperatures and total rainfall showed positive correlation with timing of D. bulbifera vine emergence/senescence, vine coverage, adult beetle emergence from diapause, and their life stages, indicating phenological synchrony of the beetle and air potato life stages in Florida. Expand
Release and distribution of Lilioceris cheni (Coleoptera: Chrysomelidae), a biological control agent of air potato (Dioscorea bulbifera: Dioscoreaceae), in Florida
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Damage due to L. cheni was found at 86% of locations and was low in the Florida panhandle where air potato was relatively uncommon and fewer beetles had been released, and in far south Florida, despite high numbers of beetle releases. Expand
Ecological host-range of Lilioceris cheni (Coleoptera: Chrysomelidae), a biological control agent of Dioscorea bulbifera
TLDR
Open-field host-specificity testing assesses the host-range of a biological control agent in a setting that permits the agent to use its full complement of host-seeking behaviors and concludes that L. cheni is host- specific to D. bulbifera and does not pose a spillover risk to the native D. floridana. Expand
Host range validation, molecular identification and release and establishment of a Chinese biotype of the Asian leaf beetle Lilioceris cheni (Coleoptera: Chrysomelidae: Criocerinae) for control of Dioscorea bulbifera L. in the southern United States
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Preliminary observations indicate that L. cheni now contributes to the control of D. bulbifera and the bulbil-feeding L. egena should complement these effects if its host range proves appropriate. Expand
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It is found that there is no evidence of substantial non-target effects by O. communa that could potentially threaten populations of European native plant species that are taxonomically closely related to ragweed. Expand
Changes in latitude: overwintering survival of two Lilioceris cheni (Coleoptera: Chrysomelidae) biotypes in Florida
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It is suggested that current release programmes incorporate Nepalese beetles into their protocol to increase overwinter survival and establishment and Nepale beetles may have a wider ecological envelope – a decided advantage for a large region such as peninsular Florida. Expand
The Effect of Food Source on Survival and Development of Lilioceris cheni (Coleoptera: Chrysomelidae), a Biological Control Agent of Air Potato (Dioscoreales: Dioscoreaceae)
TLDR
It is demonstrated that early instars of Lilioceris cheni Gressitt and Kimoto larvae survived on air potato leaves, whereas older larvae successfully developed on leaves and bulbils, but leaves provided a superior diet to bulbils for older larvae based on a shorter development time. Expand
Minimum threshold for establishment and dispersal of Lilioceris cheni (Coleoptera: Chrysomelidae): a biological control agent of Dioscorea bulbifera
TLDR
The results suggest that future releases of 100 individuals could be spaced several kilometres apart on the landscape to facilitate rapid colonisation of D. bulbifera infestations. Expand
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