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Fruit Fly Exclusion Bags

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Kath starts with ...
I have just picked the best nectarine I have ever grown in my home orchard. This year I used the mesh exclusion bags and I have found them to be very successful. My neighbour netted her tree with a 2 inch poly pipe frame and had nightmares catching pregnant bats. I am wondering if anyone else has used exclusion bags and how you found them, or has anyone designed a successful fruit fly frame for exclusion netting to cover the whole tree?
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Kath
Cawongla
18th November 2010 9:48am
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Wayne says...
They look absolutely beautiful Kath
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Wayne
Mackay QLD
18th November 2010 10:29am
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BJ says...
I've used exclusion bags this year on White Sapote, Yellow Cherry Guava and Flat Peaches and no hint of fruit fly despite my trap catching hundreds of males.

The ones I use are much smaller than the ones from Daley's - unfortunately they weren';t giving them away anymore when my order was ready :( - So there is a little problem with rubbing on the skin of the fruit, but it keeps out the fly and doesn't effect the taste in the least.
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BJ
Brisbane
18th November 2010 11:37am
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amanda says...
Hi Kath - is that your Sunraycer? It looks perfect! what taste rating would you give it? :)
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amanda
Geraldton Mid West WA
18th November 2010 9:38pm
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Kath says...
Hi Amanda, yes this is my Sunraycer. Taste rating - really yummy. I just had one for breakfast to check, and it was deliciously perfect. Let them sit for a day after picking - if you can wait to let them get soft and juicy.

I also bagged some of my plums, the gulf ruby (pictured) ripened first, the gold are still ripening and this year for the first time I even have a splattering of mariposa's due to our weird warmer but cooler winter. The birds did descend on the ruby once they were ripe and knocked all the fruit off the branch but they were all caught in the bag and still good even with a couple of claw holes in the skin.
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Kath
Cawongla
19th November 2010 8:13am
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amanda says...
Nice one Kath! My Gulf Ruby's got sunburnt :(
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amanda
Geraldton Mid West WA
19th November 2010 12:09pm
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Brad says...
Here's a link to the Fruit Fly and the Home Garden website
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Brad
G Hill, Perth
19th November 2010 2:32pm
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Original Post was last edited: 4th June 2011 10:19am
Lee Gardner says...
Hi All,
Can someone tell me where i can get some of these bags from, I lost approx 200 nectarines last year to fruit fly and i don't intend to let that happen again. I am in brisbane and have tried hawkins and bunnings with no success.
Please help
Thanks
Regards
Lee Gardner
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Lee Gardner
Brisbane
2nd June 2011 12:20pm
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Jim says...
http://www.greenharvest.com.au/pestcontrol/exclusion_prod.html
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Jim
Fremantle
2nd June 2011 12:22pm
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Charles cant spell says...
Lee, If you want to net that many fruit I would recommend netting the whole tree if possible - http://www.netprocanopies.com/hail%20netting%20pest%20protection.php#BIRDSANDBATS is one supplier, I think green harvest gets their nets from them also.
Netting the whole tree can be quite simple if its not to large, or you could prune the tree back and thin it well to get less but better quality fruit.
Once pruned and thinned you then decide whether 20-30 exclusion bags or one big net is more appropriate.
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Charles cant spell
Perth Innaloo
2nd June 2011 2:10pm
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Lee Gardner says...
Thanks Jim & Charles,
I have already trimmed the tree back ready for this years fruit, I already have some tiny fruit and i intend to select the best and bag them, I tried to net the whole tree last year but buy then the fruit fly had got to them and the local possum had also found them so i was struggling to keep the net on with the possums nightly attacks.
Regards
Lee Gardner
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Lee Gardner
Brisbane
2nd June 2011 2:38pm
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Haakon says...
I lost all my nectarines to Med fruit fly. I have a mosquito net that I intend to put over the entire tree and tie tightly when spring comes around.

My question is: Do I wait for the flowers to get fertilised before putting the net on? And when exactly should I put the net on?

many thanks
Haakon
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Haakon
Fremantle
2nd June 2011 4:18pm
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John Mc says...
How's the pic enlargement going? Here's what I've been doing recently with great results. Easy to cover the fruit and comes with a built in drawstring. The best of all? costs less than $5 per 100 delivered to my door from China. I've just bought some larger ones from Australia at just under $20 per 100.

If they don't enlarge I'll post them on photobucket.
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John Mc
 
2nd June 2011 6:25pm
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kim says...
John Mc,
Where did you order your bags from
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kim
brisbane
2nd June 2011 7:37pm
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kim says...
John Mc,
Where did you order your bags from
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kim
brisbane
2nd June 2011 7:39pm
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John Mc says...
Here's a couple of suppliers I've bought from. It appears thaat the local supplier is now cheaper than the supplier from China.

China Supplier:
http://stores.ebay.com.au/colorfulworld888store
Hmmmm... he seems to have upped his price already.
He is now advertising 50 bags for $9.47 with free postage

http://www.ebay.com.au/itm/50-White-Pure-Organza-Jewellery-Gift-bag-120-90mm-xf-/290519435903?pt=AU_WeddingSupplies&hash=item43a44eca7f

Local Australian supplier. Postage is extra:

http://www.blingin.com.au/organza-bags-white-10x13cm-100-pack-p-9095.html?zenid=f5b128ab5b04d4c30c862145da4e7d8d


There are several sizes. Always order two sizes larger than you think you might need. I've only ordered the plain white, you can get all the colours under the sun, they look quite attractive hanging off the tree, even in plain white.
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John Mc
 
2nd June 2011 10:06pm
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Charles cant spell says...
haakon - yes it needs to get pollinated, you will see the petals dropping off, that about the time you can do it, however you need to wait for a decent number of the fruit to have set, shouldnt be any issues with the fruit fly until the fruit is olive seed size.... so yeah wait intil the petals fall off enough fruit, then net the whole tree and make sure you tie around the base etc
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Charles cant spell
Perth Innaloo
2nd June 2011 11:49pm
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Haakon says...
Great, thanks Charles.

Have you got a similar opinion about when I should net my figs?

Oh, and if I get mangoes this year, do I need to net them in Perth?

many thanks
Haakon
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Haakon
Fremantle
3rd June 2011 11:26am
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Charles cant spell says...
Figs are trickier, I dont even know the pollination timeframe in general let alone the random fruiting times in perth. Sorry, more experience folks than me here though so hopefully none WA folks can give you a representative answer.

Mangoes, dont have expeirence but my understanding is no, thankfully its the eastern state fruit fly that hits mangoes/papayas etc. My one fruit was fine this year.
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Charles cant spell
Perth Innaloo
3rd June 2011 3:52pm
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BJ says...
Fruit flies are back already, so I spent the weekend bagging my champagne loquats.
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BJ
Brisbane
15th August 2011 1:36pm
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Brad says...
you definitely should bag mangoes in Perth
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Brad
G Hill,Perth
15th August 2011 5:30pm
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Brad says...
Here's a note on
How to choose the size of organza bags you will need
written as my bags just arrived and made me realise I never thought hard enough about it. I now note John's comment "Always order two sizes larger than you think you might need.". sage advice.I ordered 13x18cm bags. This sounded plenty big, but isn't.

The best way to size the bags you will need is to match the circumference of fruit which needs to be less than double the width of the bag. NOT the width of the fruit to the width of the bag.

I put up a couple photos to demonstrate this example.The bag width is around 12-13cm. The fruit diameter is around 7.5cm. Fruit circumference is 3.14*7.5 = 23.5cm and I have 2*width=24-26cm available at the top of the drawstring. Note that the string appears to pinch in a little so can be slightly less. so my bags may need to be destroyed to remove larger fruit on the tree.

see also: http://www.daleysfruit.com.au/forum/fruit-fly-control/ and http://www.ebay.com.au/sch/Gift-Bags-/161728/i.html
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Brad
G Hill,Perth
21st October 2011 1:11pm
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Original Post was last edited: 1st November 2011 5:51pm
BJ says...
Mine turned up yesterday and were smaller than I thought too!
They are okay for bagging individual guavas and white sapotes, but I may have to order more large ones for bunching fruit - grapes, loquat etc and larger fruit. Very hard to find big ones on eBay though...

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BJ
Brisbane
21st October 2011 1:55pm
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JUJUBE FOR SALE says...
mine have not turned up but I ordered 2 sizes:
13x16cm 50 bags for $5
and
size 26x18 50 bags for $ US10 (best offer)

http://www.ebay.com.au/itm/50x-Red-Heart-Organza-Wedding-Gift-Bags-18x26cm-120233-/170642292711?pt=LH_DefaultDomain_0&hash=item27bb12bfe7
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JUJUBE FOR SALE
 
21st October 2011 3:23pm
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John Mc says...
I see there is some confusion as to the right size organza bags to buy.
This link explains it all very well:

http://www.organzabags.com.au/online.htm
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John Mc
Warnervale NSW
23rd October 2011 2:24pm
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Julie says...
Useful link, thanks John.
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Julie
Roleystone WA
23rd October 2011 8:58pm
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Vanessa says...
Try www.thepouchplace.com.au they have heaps of sizes
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Vanessa
 
6th January 2012 5:09pm
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au0rey says...
Wow great thread!!!

Few questions to you guys :

1. Why do we need to be so concerned about the sizes? Why cant we buy the largest possible ones? The largest can be used to protect like say half a branch of fruits eg peaches. Or it still can be used to net one fruit right??

2. I saw on tele once that a gardener used black organza. Can I know if the colour will make a difference? What is the best colour to use? Will certain colours attract certain animals more? Or will black help ripening better or white reflect off sunlight etc? You know what I mean? I feel that it is not just about making the tree look pretty but to maximise the use of the bags for yummy protected fruits.

3. I dont get fruit flies here (fingers crossed) but do you guys think these bags will protect fruits against birds? I know wont work on possums cos they will try to pluck the fruit, even if the fruit cannot be eaten but if plucked not fully ripened, it is still lost. Fruits like peaches wont ripen after plucking prematurely.

THanks guys! Thanks for the helpful links!
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au0rey
Melbourne
7th January 2012 11:39am
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John Mc says...
I think I can help with a couple of questions.
1. I think it's just a cost factor. I'm using 16cm x 22cm organza bags ($33 del per 100)for figs. That same size covers a complete bunch of loquats nicely.
The smaller bags are $10 cheaper per 100.
2. I'd like to know more on the colour aspect as well. ATM I'm using white and silver.
3. Last year I had a bird strike on the guavas. I have a growing family of king parrots, and do they know how to damage a crop? The bags limited the damage to half a dozen fruit, they worked hard to get through the bags, which were damaged beyond repair. all the rest were left untouched, not to mention no FF.
Not a bad compromise.
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John Mc
Warnervale NSW
7th January 2012 8:14pm
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au0rey says...
Thanks John! Well-answered.
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au0rey
melbourne
7th January 2012 9:28pm
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Julie says...
I found three peaches on the ground today - seem to have been pecked by birds. They are not ripe yet, but starting to colour up. I hope I have John Mc's experience - I don't mind losing s few, but not the lot!

I bought blue bags, because birds are not attracted to blue - supposedly.
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Julie
Roleystone WA
7th January 2012 10:05pm
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au0rey says...
Yeah it isnt nice losing fruits like that. I lost a few to possums plucking them but leaving them tangling in the individual cut nets I put up around them. Still cant eat and have to throw them out.

I saw on tele that insects are atttracted to certain colours eg the white on coriander appears to be a certain colour too them. And the yellow flowers on pak choy plants and curcubits certainly attractt white cabbage butterflies etc...
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au0rey
melbourne
8th January 2012 9:44am
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MaryT says...
Thanks for suggesting these bags; my figs are growing and colouring happily inside them.
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MaryT
Sydney
7th February 2012 3:29pm
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Original Post was last edited: 7th February 2012 3:50pm
MaryT says...
Too easy!
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MaryT
Sydney
8th February 2012 9:05am
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amanda says...
Good work MaryT - looks like a wedding tree somehow ;D
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amanda
Geraldton, 400km North of Perth
8th February 2012 9:17am
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au0rey says...
Exactly what I am doing to my grape bunches and figs though it is bit difficult to bag figs with all the large leaves, i got 50 good sized white organza bags fom ebay, 22 bucks incl deliveryi think is good deal :p
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au0rey
melbourne
8th February 2012 1:22pm
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MaryT says...
Great au0rey! What size are the big ones? I use the smaller ones for figs individually.

The largest ones I can get from blingin.com.au are 16x22cm @$17.99 per 100 (plus postage) on special today. http://blingin.com.au/organza-bags-silver-print-16x22cm-100-pack-p-9090.html but they wouldn't be big enough for bunches.

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MaryT
Sydney
8th February 2012 1:39pm
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au0rey says...
Hi MaryT, mine are 23x17cm...fit my grape bunches just right...wish i can get bigger ones though. Wow yours is better deal! Thought mine's already cheap! Thanks. :)
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au0rey
 
9th February 2012 1:22pm
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MaryT says...
They are on special at 40% off au0rey or they are quite dear; and it's only the silver print that's on sale. Also blingin.com.au has a minimum order of $40 and postage outside of major cities are more expensive. They're quick - I received my order the very next day.
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MaryT
Sydney
9th February 2012 3:32pm
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JUJUBE FOR SALE IN MELBOURNE says...
Just to alert you all that I discovered today that my cocona fruit has fruit fly larvae and it was in organza bag so I think we have to make sure that the bag has to be much bigger so the fruit won't touch the fabric otherwise the fruit fly can lay their eggs through the material.
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JUJUBE FOR SALE IN MELBOURNE
 
13th March 2012 4:35pm
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coastie says...
Hi, I use exclusion bags which a bit more sturdier than organza and find I have to bag my tomatoes at flower stage,early is the secretm I think, the fruit is hardly the size of a pea...same for pumpkins.
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coastie
 
13th March 2012 4:43pm
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Chris says...
Are you sure it's fruit fly? Didn't think it was present in Melbourne. I would contact the relevant authorities if you are definite.
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Chris
Sydney
13th March 2012 5:08pm
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JUJUBE FOR SALE IN MELBOURNE says...
Hi Chris,

I am in Townsville at present and definitely fruit flies and my lufa has the same thing. I should have done the bagging bit much earlier as coastie said.
I bagged mine about half of the mature size it could have fruit fly eggs inside already.
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JUJUBE FOR SALE IN MELBOURNE
 
13th March 2012 5:35pm
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Original Post was last edited: 13th March 2012 6:05pm
snottiegobble says...
Hell Jujube, next thing you get will be cane toads, yet some folks still dont accept global warming!
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snottiegobble
Bunno & Busso ( smack in the middle)
13th March 2012 5:41pm
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JUJUBE FOR SALE IN MELBOURNE says...
Hi snottiegobble,

We don't have fruit flies in Melbourne, too cold for them to survive the hash winter.
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JUJUBE FOR SALE IN MELBOURNE
 
13th March 2012 5:45pm
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Original Post was last edited: 13th March 2012 6:01pm
snottiegobble says...
Sorry jujube, I presumed you were growing lufa, cocona, etc in Melb.
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snottiegobble
Bunno & Busso ( smack in the middle)
13th March 2012 8:24pm
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bloody birds says...
birds do peck through the organza bags. on a pear tree the blue organza bags got pecked through, while white callico wasn't
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bloody birds
 
23rd March 2012 3:07pm
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Julie says...
My experience too 'bloody birds'. You do know you can choose a name for yourself - now you are stuck with a title!
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Julie
Roleystone WA
24th March 2012 12:19am
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John Mc says...
Yes sg, I'll put my hand up, I'm one of those horrible skeptics.
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John Mc
Warnervale NSW
24th March 2012 7:32am
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