@article {13954,
	title = {A process-based population dynamics model to explore target and non-target impacts of a biological control agent},
	journal = {Ecological Modelling},
	volume = {220},
	number = {17},
	year = {2009},
	month = {September 10},
	pages = {2035-2050},
	abstract = {The risks and benefits associated with efforts to control invasive alien species using classical biological control are being subjected to increasing scrutiny. A process-based population dynamics model was developed to explore the interactions between a folivorous biological control agent, Cleopus japonicus, and its plant host Buddleja davidii. The model revealed that climate could have a significant impact upon the interactions between B. davidii and C japonicus. At the coolest sites, the impact of C japonicus on B. davidii was slowed, but it was still eventually capable of controlling populations of B. davidii. At the warmer sites where both B. davidii and C. japonicus grew faster, B. davidii succumbed rapidly to weevil damage. We hypothesise that barring an encounter with a natural enemy, C. japonicus will eventually be able to provide sustained control B. davidii throughout the North Island of New Zealand. The model scenarios illustrate the potential for the C japonicus population to attain high densities rapidly, and to defoliate patches of B. davidii, creating the potential for spill-over feeding on non-target plants. The potential magnitude of this threat will depend partly on the climate suitability for C. japonicus, the pattern by which it migrates in response to a reduction in the available leaf resource, and the suitability of non-target plants as hosts. In all migration scenarios considered, the pattern of population growth and resource consumption by C. japonicus was exponential, with a strong tendency toward complete utilisation of resource patches more quickly at the warmer compared to colder sites. In addition to providing some useful hypotheses about the effects of climate on the biological control system, and the non-target risks, it also provides some insight into the mechanisms by which climate affects the system. (C) 2009 Published by Elsevier B.V.},
	keywords = {Cleopus japonicus},
	isbn = {0304-3800},
	author = {Kriticos, Darren J. and Watt, Michael S. and Withers, Toni M. and Leriche, Agathe and Watson, Michelle C.}
}
@article {11475,
	title = {A laboratory rearing method for Cleopus japonicus (Wingelmueller) (Coleoptera: Curculionidae), a biological control agent for Buddleja davidii Franchet (Lamiales: Scrophulariaceae) in New Zealand},
	journal = {New Zealand Entomologist},
	volume = {32},
	year = {2009},
	month = {2009},
	pages = {55-58},
	abstract = {Buddleia, Buddleja davidii, is a fast-growing woody weed in New Zealand. The buddleia leaf weevil Cleopus japonicus was released in 2006 as a classical biological control agent for buddleia and is now established in the North Island. The laboratory rearing method developed and a morphological method of sexing the adults of this external leaf-feeding weevil are described.},
	keywords = {Cleopus japonicus},
	isbn = {0077-9962},
	author = {Gresham, Belinda A. and Watson, Michelle C. and Withers, Toni M.}
}
