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PostPosted: Thu Jun 12, 2008 9:08 am 
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Joined: Thu Sep 28, 2006 5:22 pm
Posts: 3821
Location: Tucson, Arizona
I have noticed these cute little plants(?) on Creosote Bushes before. Does anyone have any idea what it is and if it is parasitic or symbiotic?
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Thanks,
Ed

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"Look deep into nature, and then you will understand everything better."
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ArizonaEd--Tucson Cactus and Succulent Society-- www.tucsoncactus.org


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PostPosted: Sat Sep 20, 2008 8:58 pm 
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Joined: Fri May 05, 2006 6:04 pm
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Location: Escobedo, Nuevo Leon, Mexico
Hi Ed:
I saw this gall many times before in the field and your post remind me to look for a response. I google for "Larrea tridentata parasitoid" and find some info. I think is the called Creosote Bush Gall Midge (Asphondylia).
........"This small fly lays eggs on twigs, the larvae hatch, and chew into the twigs. Chewing by the larvae, cause the bush to grow a ball of deformed leaves (a gall). The larvae live inside these galls, feeding on the plant material and protected from predators and the elements until they emerge as flies.".....
Look at this link:
http://wc.pima.edu/~bfiero/tucsonecolog ... ubs_cb.htm

Saludos.

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 Post subject: WoW--Thanks
PostPosted: Sun Sep 21, 2008 9:45 am 
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Location: Tucson, Arizona
Astro,
You must have some time on your hands in order to view posts from June. I thank you very much for the information. You are always so helpful Amigo.
Disfrute de su día,
Edwardo de Tucson

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"Look deep into nature, and then you will understand everything better."
Albert Einstein (1879-1955)
ArizonaEd--Tucson Cactus and Succulent Society-- www.tucsoncactus.org


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