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Diuraphis Noxia

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Name Kingdom: Animalia Phylum: Arthropoda Class: Insecta Binomial Nomenclature: Diuraphis noxia

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From Eurasia (central and western) Came to U.S. in 1986 Brought to Texas accidentally from Mexico Can now be found in many western states (California, Colorado, Nevada, etc.)

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Map Of Distribution over all years

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Mostly eats Wheat and Barley Main economic effect: Farmers lose money by losing crops and by buying pesticides

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What Effects Has it Caused? (Ecosystems) To save money by not buying pesticides, types of flies have been introduced to stop the aphids

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Food Chain Wheat Barley Sun Aphid Ladybug Flies

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Reasons For Success Many predators such as lady beetles are too large to enter the rolled leaves Reproduce Asexually and all are female

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In The Future Attempts to Stop the Menace Farmers can plant their crops early Trade off- unanticipated weather Making sure plants are not under water stress Trade off- might over water plants Not planting wheat or barley Trade off- fewer wheat and barley for us(consumers)

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Infected Crops The Aphid injects a toxin into the plant while feeding and causes damage The leaves then get white longitudinal streaks The leaf then curls up

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Different Types Winged (alate)- when the plant dies several nymphs grow wings They seek a new host plant Dark green thorax Wingless (apterous)- produce many children Normal green thorax

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http://www.invasivespeciesinfo.gov/animals/r wa.shtml http://www.invasivespeciesinfo.gov/animals/r wa.shtml http://www.ipm.ucdavis.edu/PMG/r73030021 1.html http://www.ipm.ucdavis.edu/PMG/r73030021 1.html http://www.ksre.ksu.edu/library/entml2/mf26 66.pdf http://www.ksre.ksu.edu/library/entml2/mf26 66.pdf http://ces.uwyo.edu/PUBS/B1013.07.pdf

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