A laboratory rearing method forCleopus japonicus(Wingelmüller) (Coleoptera: Curculionidae), a biological control agent forBuddleja davidiiFranchet (Lamiales: Scrophulariaceae) in New Zealand

Gresham, Belinda A.; Watson, M. C.; Withers, T. M.

doi:10.1080/00779962.2009.9722176

Cited by 6 publications

(9 citation statements)

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“…In phase A, the C. japonicus were released as pupae, to allow for the natural prealighting cues of adult weevils in choosing between B. davidii and the test plants following emergence. Furthermore, newly emerged adults can be expected to show the highest motivation to feed because this is the life stage when nutritional requirements for food are greatest (Gresham et al 2009). The presence of a small number of C. japonicus on S. auriculata, V. virgatum, H. speciosa and M. laetum early in phase A of the trial may be a product of both this high feeding motivation, and agent mobility.…”

Section: Discussionmentioning

confidence: 99%

Twophase openfield test to confirm host range of a biocontrol agent Cleopus japonicus

Watson¹,

Withers²,

Hill³

2009

NZPP

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The buddleia leaf weevil Cleopus japonicus was released in New Zealand in 2006 as a biological control agent for the weed Buddleja davidii A twophase openfield design was used to confirm laboratory host range and examine nontarget impacts in the field This was the first field trial undertaken in New Zealand and included six nontarget plant species Feeding and dispersal of the agent on the test species and B davidii were compared Cleopus japonicus strongly preferred B davidii Larvae were recorded on Verbascum virgatum and Scrophularia auriculata during the choice stage of the trial Killing the B davidii plants in the second phase resulted in adults feeding on the two exotic species V virgatum and S auriculata Minor exploratory feeding was recorded on the natives Hebe speciosa and Myoporum laetum These results confirm that laboratory tests conducted to assess the safety of this agent for release in New Zealand accurately predicted field host range

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Section: Discussionmentioning

confidence: 99%

Twophase openfield test to confirm host range of a biocontrol agent Cleopus japonicus

Watson¹,

Withers²,

Hill³

2009

NZPP

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“…japonicus weevils were reared under controlled conditions in the Scion Invertebrate Quarantine and Containment Facility in Rotorua, New Zealand, using the methods described in Gresham et al (2009). At each site, 250 mature adult C. japonicus were released monthly from mid-October 2006 (mid-spring) to January 2007 (mid-summer), a total of 1000 released at each site.…”

Section: Japonicus Releasesmentioning

confidence: 99%

“…Larvae can move only short distances, while adults can locate further hosts by flight. In addition to high mobility, the adults can live up to 300 days and fecundity is high (up to 20 eggs per day) (Zhang et al, 1993;Gresham et al, 2009), all key attributes for a successful biological control agent. It is hoped these characteristics will enable the agent to spread and increase rapidly to damaging population levels (Kriticos et al, 2009).…”

Section: Introductionmentioning

confidence: 98%

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Potential for Cleopus japonicus to control the weed Buddleja davidii in plantation forests in New Zealand

Watson

Watt

Withers

et al. 2011

Forest Ecology and Management

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“…The buddleia leaf weevil, Cleopus japonicus Wingelmüller was first released in New Zealand as a biological control agent for the weed buddleia (Buddleja davidii Franchet) in October 2006 (Gresham et al 2009). Buddleja davidii is an invasive weed in exotic and indigenous forests in New Zealand.…”

Section: Introductionmentioning

confidence: 99%

Cleopus japonicus releases and distribution of the buddleia biological control agent in New Zealand

Watson¹,

Withers²,

Heaphy³

2011

NZPP

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The buddleia leaf weevil Cleopus japonicus was released in New Zealand by Scion in 2006 as a biological control agent for the weed Buddleja davidii One thousand C japonicus adults were released at each of five commercial forest sites in the North Island A further 33 releases of approximately 14910 C japonicus were made between 2006 and 2011 in the North and South Islands on both privately and publicallyowned land and sites of conservation importance The weevil is known to have established at all sites with the possible exception of one release made in 2007 Location data of C japonicus provided by local and regional councils DOC forest health officers and others have provided information on the spread of C japonicus These data show C japonicus has spread over 50 km from some release sites and is rapidly increasing in population density and distribution

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A laboratory rearing method forCleopus japonicus(Wingelmüller) (Coleoptera: Curculionidae), a biological control agent forBuddleja davidiiFranchet (Lamiales: Scrophulariaceae) in New Zealand

Cited by 6 publications

References 0 publications

Twophase openfield test to confirm host range of a biocontrol agent <i>Cleopus japonicus</i>

Twophase openfield test to confirm host range of a biocontrol agent <i>Cleopus japonicus</i>

Potential for Cleopus japonicus to control the weed Buddleja davidii in plantation forests in New Zealand

<i>Cleopus japonicus</i> releases and distribution of the buddleia biological control agent in New Zealand

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