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 Post subject: Spider? Bug?
PostPosted: Mar 18th, '10, 17:46 
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I found this yesterday and I'm not sure what it is.

I cant work out if the spider was eating the eggs or if it was its own eggs. The eggs all seemed to have holes in them.

Any ideas?
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 Post subject: Re: Spider? Bug?
PostPosted: Mar 18th, '10, 17:55 
Seriously, this cant be healthy.
Seriously, this cant be healthy.
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They hatched :wink:


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 Post subject: Re: Spider? Bug?
PostPosted: Mar 18th, '10, 18:04 
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Thats what I am worried about. :)


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 Post subject: Re: Spider? Bug?
PostPosted: Mar 18th, '10, 20:50 
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It is fantastic news Embi.
The story of the white cabbage butterfly will be in the next magazine Edition 8. The parasitic wasp! :cheers:
I don't want to spoil the ending, but I also found them and watched them emerge in my bug catcher, awesome experince with a macro. They are the eggs of a beneficial wasp. There is a whole story and a you tube video as well. Joel thinks I'm really sick, especially when I got sooo excited about the awesome video. I will see if I can find it.

Found it http://www.youtube.com/watch?v=vMG-LWyNcAs Enjoy!


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 Post subject: Re: Spider? Bug?
PostPosted: Mar 19th, '10, 01:58 
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That is an amazing video. So I guess my wasps have hatched as all the cocoons had holes.

I'll have to look out for more plump caterpillars. :)


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 Post subject: Re: Spider? Bug?
PostPosted: Mar 19th, '10, 08:56 
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Here's a snippet of an email I recieved form the Worlds leading expert on European wasps, Philip Spradbery. It's amazing what you find out about people. I happen to work with his son and just found out this morning that his Dad is the guru after discussing the video Faye posted.

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The video material was awesome to say the least! Wonderful photography.

Yes, these are wasp pupae (not eggs) as correctly identified in the video. The wasp is not closely related to European wasps and the like, belonging to a group called Parasitica (Terebrantia) – small to medium size wasps that parasitize other insects – especially caterpillars. They are incredibly important in maintaining the balance of nature and often manipulated by us buggerologists in biological control projects. There are labs throughout the world that breed such beneficial wasps for use in horticulture etc.
I was studying parasitic wasps when doing the Sirex Woodwasp project – my first CSIRO assignment.

The wasps in the photo you sent are probably in the Family Braconidae of which there are 800 different species in Australia!
Your colleague should encourage these efficacious insects – they are doing a great job in his hydroponics patch keeping caterpillars at bay – don’t use pesticides!!

Do you remember that caterpillar we collected from your garden a while ago? It subsequently ‘produced’ hundreds of tiny parasitic braconid wasps – I keep meaning to show you when you visit Canberra – still have the original jar of specimens!

Thanks for the opportunity to see the material.

Philip


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 Post subject: Re: Spider? Bug?
PostPosted: Mar 19th, '10, 11:49 
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Very cool!


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 Post subject: Re: Spider? Bug?
PostPosted: Mar 19th, '10, 22:00 
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I have lots of spiders in my greenhouse,I call them my unpaid workers ,the only thing that I have to spray for is powdery mildew.


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