We hope you have enjoyed the SRGC Forum. You can make a Paypal donation to the SRGC by clicking the above button

Author Topic: May Narcissus 2012  (Read 4505 times)

Lesley Cox

  • way down south !
  • Hero Member
  • *****
  • Posts: 16348
  • Country: nz
  • Gardening forever, house work.....whenever!
Re: May Narcissus 2012
« Reply #15 on: May 17, 2012, 11:03:56 PM »
Fruit flies are very fruitful.

Too true but we mustn't let them get full of fruit. Not ours anyway. ::)
Lesley Cox - near Dunedin, lower east coast, South Island of New Zealand - Zone 9

Gerdk

  • grower of sweet violets
  • Hero Member
  • *****
  • Posts: 2929
Re: May Narcissus 2012
« Reply #16 on: May 18, 2012, 07:00:12 AM »
Thank you Lesley, your fruit fly is Bactrocera tryoni - I don't know whether its dangerousness is the same as the med fruit fly.

Gerd
Gerd Knoche, Solingen
Germany

Kees Green

  • Full Member
  • ***
  • Posts: 181
  • Country: au
Re: May Narcissus 2012
« Reply #17 on: May 18, 2012, 11:35:52 AM »
Yes they are pheromone baited, I remember putting baits out for certain moth species with DoC probably 20+ years ago.

The queensland fruit fly in question is Bactrocera tryoni, so far no other specimens have been found and given the numbers as Anthony has said could occur this would dictate there should have been a lot more caught. We may have been extremely lucky again this time.
This is the third time that a single fruit fly of this species has been found in NZ without any colonies established, funny enough they have all been in Autumn.
Kees Green, miniature daffodil and insect enthusiast

League fan in a city crazed by AFL

Anthony Darby

  • Bug Buff & Punster
  • Hero Member
  • *****
  • Posts: 9647
  • Country: nz
Re: May Narcissus 2012
« Reply #18 on: May 18, 2012, 01:13:32 PM »
......which might suggest Auckland really isn't a suitable environment for for a tropical fruit fly? This being said, it is spreading into more temperate parts of Australia, but summers are much hotter than here. Studies suggest they routinely disperse up to 90km as adults, which would suggest they could easily be blown across the Tasman. Adults can live up to a year, so plenty of scope for hitching a lift. It seems that when ever an isolated outbreak occurs it can be successfully eradicated. I'm impressed with the systems in place to detect this insect!
Anthony Darby, Auckland, New Zealand.
"Nothing in biology makes sense except in the light of evolution"
http://www.dunblanecathedral.org.uk/Choir/The-Choir.html

Hoy

  • Hero Member
  • *****
  • Posts: 3854
  • Country: no
  • Rogaland, Norway - We used to have mild winters!
Re: May Narcissus 2012
« Reply #19 on: May 19, 2012, 08:09:11 PM »
A little Narcissus (and a tulip) flowering now at my summerhouse. I've forgotten which one.
Trond Hoy, gardening on the rainy west coast of Norway.

Anthony Darby

  • Bug Buff & Punster
  • Hero Member
  • *****
  • Posts: 9647
  • Country: nz
Re: May Narcissus 2012
« Reply #20 on: May 20, 2012, 12:00:54 AM »
How many summerhouses do you have? ;D
Anthony Darby, Auckland, New Zealand.
"Nothing in biology makes sense except in the light of evolution"
http://www.dunblanecathedral.org.uk/Choir/The-Choir.html

Hoy

  • Hero Member
  • *****
  • Posts: 3854
  • Country: no
  • Rogaland, Norway - We used to have mild winters!
Re: May Narcissus 2012
« Reply #21 on: May 22, 2012, 08:21:55 PM »
How many summerhouses do you have? ;D

One to many maybe?

Actually I have one at the sea together with my sister and my wife has one in the mountains together with her sister ;) Both are small cabins and not luxurious  ;)
Trond Hoy, gardening on the rainy west coast of Norway.

 


Scottish Rock Garden Club is a Charity registered with Scottish Charity Regulator (OSCR): SC000942
SimplePortal 2.3.5 © 2008-2012, SimplePortal