----WANTED----Russian Wheat Aphid

Diuraphis noxia (Курдюмова)

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What is an Invasive Species?

  • Not native to its new environment
  • Out competes native species

Classification

Kingdom: Animalia

Phylum: Arthropoda

Class: Insecta
Order: Hemiptera

Suborder: Sternorrhyncha

Family: Aphididae

Genus: Diuraphis

Species: Diuraphis noxia

Introduction and Success

The pest was found in the year 1986 in the state of Utah.


The aphid spread in large numbers with its winged form and breed in the new field asexually because there are no male Russian wheat aphids in the U.S.

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Success continued

The Russian wheat aphid is very cold tolerant compared to other aphids being able to survive at temperatures as low as -13 fahrenheit.


The aphid takes 7-10 days to grow up and lives for 60-80 days

Damage Done to the Environment

  • Causes losses to cereal crops such as wheat, corn, and oats.
  • Overpopulates and wipes out fields of crops

Trophic Level

Primary consumer



  • Gets preyed upon by the Braconid wasp
  • Eats grasses and cereal plants
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Limiting factors and solutions

In it's native environment Russia, the aphid cannot over populate because of the cold climate.


  • More parasitic wasps(Braconid wasp) and fungal pathogens into the area
  • Larger dispersion between each wheat fields
  • Chemical use