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The Veg IPM TEAM received the following specimen (picture) from a resident of the
Foothills in Yuma AZ for identification. In our last update we asked you to email
us with your answer to AZVegIPM-Team@email.arizona.edu
to receive a U of A Vegetable IPM hat from Dr. John Palumbo.
Arizona Desert Ecology
http://mbreiding.us/ert/Arizona/desertecology/creogall.htm
Wildlife
around Las Vegas
http://www.birdandhike.com/Wildlife/Invert/Ph_Arthropoda/SubP_Hexapoda/Cl_Insecta/Diptera/Midge/Cecidomyiidae/Asphon_aur/_Asp_aur.htm
Mr. Dan Fox contacted us with the right answer. This is a gall produced by the Creosote Midge Gall (Asphondylia auripila) and was found in creosote plants at the Foothills in Yuma Arizona. Adult female midges oviposit (inserts eggs) into the part of the plant their species prefers, along with a fungal spore. The fungus induces the plant to produce the gall, and the fungus grows inside the gall, lining the inside of the egg chamber. The egg eventually hatches, and the larva feeds on the fungus. Very interesting insect! Congratulations Dan, you are the winner of A NEW HAT!! |
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For questions or comments on any of the topics please contact Marco Pena at the Yuma Agricultural Center.
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