Southwestern Entomologist (2010) 35, 11-18

Georges F. Backoulou, Norman C. Elliott, Kristopher L. Giles, Vasile Catana, Mpho Phoofolo, Frank B. Peairs and Gary L. Hein (2010)
Relationship between Russian wheat aphid abundance and edaphic and topographic characteristics in wheat fields
Southwestern Entomologist 35 (1), 11-18
Abstract: This study explores the spatial relationship between abundance of Russian wheat aphid, Diuraphis noxia (Mordvilko), and variation in edaphic and topographic factors within fields of wheat, Triticum aestivum L. Data from six wheat fields in Colorado, Wyoming, and Nebraska were analyzed by multiple regression. Data collected were numbers of Russian wheat aphids, aspect, relative elevation, slope, and percentages of clay and sand of soils at 25 geographically referenced sites in each field. Slope and percentage of sand explained 24.2% of the variation in Russian wheat aphid abundance within wheat fields in a model developed using stepwise regression.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Mpho W. Phoofolo, Frank B. Peairs

Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation
population dynamics/ epidemiology

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Diuraphis noxia	Wheat (Triticum)	U.S.A. (SW)
	Diuraphis noxia	Wheat (Triticum)	U.S.A. (NW)
	Diuraphis noxia	Wheat (Triticum)	U.S.A. (mid N)