transcript
- Slide 1
- Slide 2
- Diuraphis Noxia
- Slide 3
- 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
- Slide 14