Darn! Major OE Infected Adult

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Darn! Major OE Infected Adult

Postby ilsa » Sun Sep 13, 2009 4:37 pm

I have over 200 chrysalides in Gaithersburg, MD. The eggs were laid 16-18 Aug and they have been eclosing since Thursday, 10 Sep. I had an eclose today that was clearly EO-infected. Its wings were crumpled and it had trouble extracting its abdomen from the chrysalis. I separated it immediately and after it pumped up its wings, I took a specimen from its abdomen and looked at it under my scope. Major, major OE infection. I'm sad to say that this will be my first euthanasia.

Ilsa
crumpled_eclose_13Sep09.jpg
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Re: Darn! Major OE Infected Adult

Postby Paul Cherubini » Sun Sep 13, 2009 4:56 pm

Great photo! I'd love it if you could explain or post a picture of the equipment you have that enables you to take a photo through a microscope. Thanks.
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Re: Darn! Major OE Infected Adult

Postby ilsa » Sun Sep 13, 2009 5:10 pm

Alright, Paul. I'll collect a photo of my setup (minus the camera, of course, but I can point to where it goes) and other info as I can.

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Re: Darn! Major OE Infected Adult

Postby texas butterfly » Sun Sep 13, 2009 7:16 pm

I'd be interested to know what scope also.

Great picture.
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Re: Darn! Major OE Infected Adult

Postby Mona Miller » Sun Sep 13, 2009 9:22 pm

The good news is that even if you have an infected adult the other pupae may not have a problem. Keep a close eye on them. You did the right thing separating the infected one from the others.
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Re: Darn! Major OE Infected Adult

Postby ilsa » Sun Sep 13, 2009 9:31 pm

Mona Miller wrote:The good news is that even if you have an infected adult the other pupae may not have a problem. Keep a close eye on them. You did the right thing separating the infected one from the others.


Yes, I'm thinking this might have been one of the cats who came home on a native milkweed cutting. There were several.

I haven't done the dirty deed yet. He actually looks fine now. I'll put him in the fridge in the morning, then move him to the freezer. This is really tough. First time for me.
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Re: Darn! Major OE Infected Adult

Postby Mona Miller » Sun Sep 13, 2009 9:36 pm

Yes, it is really tough. Releasing very sick butterflies makes other butterflies sick.
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Re: Darn! Major OE Infected Adult

Postby ilsa » Sun Sep 13, 2009 9:38 pm

I know. It's the right thing to do to euthanize him, for the sake of the whole species.
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Re: Darn! Major OE Infected Adult

Postby Wyvern » Mon Sep 14, 2009 2:44 pm

digital / video cameras for microscopes are pretty common now a days....and some can be had for pretty cheap. you hook it up to your computer and take pics that way. carolina biological supply has a selection you can see for reference, then do searches for the same models on amazon for a better price. :-)
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Re: Darn! Major OE Infected Adult

Postby Monarch MaMa » Tue Sep 15, 2009 8:14 pm

Ilsa - very impressive!
Thanks for the good look - this is important to teach the new monarch parents what to look for.
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Re: Darn! Major OE Infected Adult

Postby ilsa » Tue Sep 15, 2009 9:07 pm

Isn't it interesting how the O.E. spores resemble milkweed seeds?
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