Home
Contents Vol. 47 public Print E-mail

  

These papers are currently only available to members of the Entomological Society of New South Wales, or directly from the author.  Once the entire Journal 47 is published they will also be available through Informit. They will be made freely available to all via this website once volume 48 is published (approximately one year later).  

Volume 47 

Olive fruit (Olea europaea L.) as a host of Queensland fruit fly (Bactrocera tryoni (Froggatt) in south eastern Australia.

Bernard C. Dominiak, Linda Semeraro, Mark J. Blacket, Adrian C. Englefield, and Alicia Mellberg 

This e-mail address is being protected from spam bots, you need JavaScript enabled to view it

There is limited historical information for olive fruit as a host for Queensland fruit fly (Bactrocera tryoni). In 2015, five suspect samples from informal surveys of olive fruit from the Sunraysia district were examined for B. tryoni and found positive. Larval and adult identifications were confirmed using both morphological and molecular  methods. Olive fruit were found to support and produce between 3.8 and 32.5 adults per kilogram of fruit, which is comparable to some citrus. There is a need to further develop a fruit fly standard for a host susceptibility index or host potential index. If producers are developing a systems approach to manage fruit fly, they need to be aware that olive fruit can act as an alternative host for B. tryoni.

General & Applied Entomology 47: 1-6.

Posted on-line 12.07.2019

 

Expansion of Sycamore Lace Bug Corythucha ciliata (Say) (Hemiptera: Tingidae) in New South Wales, Australia, between 2008 and 2019.

Bernie C. Dominiak, Peter Worsley, Bernard Millynn and Angus J. Carnegie

This e-mail address is being protected from spam bots, you need JavaScript enabled to view it  

Sycamore lace bug (Corythucha ciliata (Say)) was detected on Platanus x acerifolia in New South Wales in 2007 and confined to the Sydney basin. Surveys were undertaken in New South Wales in 2008, 2009, 2012, 2015 and 2019 to monitor the spread of the pest. There were 1,351 sites inspected with 409 detections during these five survey years. Corythucha ciliata was found on P. x acerifolia, P. orientalis and P. orientalis var. ‘digitata’, and is now distributed from Albury in southern NSW to Glen Innes on the Northern Tablelands, and west to Dubbo. The insect had dispersed a maximum of about 450 km after eight years. However some dispersal distances were as short as 270 km to the north. The insect continues to disperse slowly across New South Wales.

General & Applied Entomology 47: 7-11.

Posted on-line 12.07.2019

 

Review of the biology and distribution of Newman Fruit Fly, Dacus newmani (Perkins) (DIPTERA: TEPHRITIDAE), a cryptic Dacinae species from the dry inland of Australia

 Dominiak, B.

  This e-mail address is being protected from spam bots, you need JavaScript enabled to view it

 Dacus newmani is a commonly collected native fruit fly in Australia. However, D. newmani is poorly understood but has no economic impact on commercial fruit industries. Dacus newmani is trapped in large numbers in dry environments, unlike many other fruit flies. Trade partners may become concerned by these large numbers and may need to be assured that this species does not pose a threat to exports. This review aims to provide information to allay any concerns. There is very little information on hosts including native hosts, although a member of Asclepiadaceae (the native Marsdenia australis) is speculated to be a host. As no hosts are known, there is also no knowledge about immature forms. There is only one description of female flies. Adult males are possibly long lived with up to two generations per year but generally seem to be single brooded. Dacus newmani adult males are attracted to cuelure but not to wet food lures. The fly is distributed mainly through arid areas in Australia in all mainland states. It is not known in any other countries. Dacus newmani remains a cryptic species despite being known of for decades.

 General & Applied Entomology 47: 17-24.

 Posted on-line 29.11.2019

  

Spinetoram resistance detected in Australian Western Flower Thrips Frankliniella occidentalis (Pergande) from Queensland and Victoria.

 Langfield, K., Nguyen, D., Annetts, R. and Herron, G.A.

  This e-mail address is being protected from spam bots, you need JavaScript enabled to view it

 A control failure to spinetoram was recently detected in a population of western flower thrips Frankliniella occidentalis (Pergande) from Western Australia that was verified to be resistant. Here we present data from thrips sampled at one location in Victoria and three locations in Queensland to determine if resistance is restricted to Western Australia only. Resistance was detected in both states but not in every population sampled with an LC50 Resistance Factor (RF) range (95% confidence interval in brackets) of 5.6 (3.8-8.4) to 55.7 (41.2-75.4) fold. Unexpectedly a response consistent with negative cross resistance was detected in some strains with one having a RF of 0.1 (0.06-0.2) fold.

 General & Applied Entomology 47: 12-16.

 Posted on-line 29.11.2019

 

Last Updated ( Friday, 29 November 2019 )
 
© 2020 Entomological Society of New South Wales & hosted by Decompression Australia
Joomla! is Free Software released under the GNU/GPL License.