EurekaMag.com logo
+ Site Statistics
References:
52,654,530
Abstracts:
29,560,856
PMIDs:
28,072,755
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

Impact of indigenous coccinellids on Russian wheat aphids and greenbugs (Homoptera: Aphididae) infesting winter wheat in the Texas Panhandle



Impact of indigenous coccinellids on Russian wheat aphids and greenbugs (Homoptera: Aphididae) infesting winter wheat in the Texas Panhandle



Southwestern Entomologist 26(2): 97-114



Exclusion experiments conducted in Texas Panhandle winter wheat fields from 1993-1995 demonstrated that naturally-occurring predaceous Coccinellids (primarily Hippodamia sp.) had a significant impact on Russian wheat aphid, Diuraphis noxia (Kurdjumov), and greenbug, Schizaphis graminum (Rondani), average aphid density and percentage aphid reduction in both irrigated and dryland habitats. Naturally-occurring predaceous coccinellids significantly reduced Russian wheat aphid and greenbug densities in irrigated and dryland winter wheat on a regular basis in the Texas Panhandle. The coccinellids were able to locate and attack isolated aphid infestations even when overall aphid density in the field was very low. Although the impact on aphid density varied from season to season, and year to year, the percentage reduction in aphid density was relatively consistant, averaging 54% for Russian wheat aphids and 63% for greenbugs across all years and seasons. There was no evidence that naturally-occurring or established exotic parasitoids had a similar impact.

(PDF emailed within 1 workday: $29.90)

Accession: 003469986

Download citation: RISBibTeXText



Related references

Comparative chlorophyll losses in susceptible wheat leaves fed upon by Russian wheat aphids or greenbugs (Homoptera : Aphididae). Journal of the Kansas Entomological Society 74(4): 192-198, 2001

Comparative chlorophyll losses in susceptible wheat leaves fed upon by Russian wheat aphids or greenbugs (Homoptera: Aphididae). Journal of the Kansas Entomological Society 74(4): 192-198, 2001

Role of indigenous coccinellids in regulating greenbugs Homoptera Aphididae on Texas grain sorghum. Journal of Economic Entomology 78.1: 269-273, 1985

Larval development, aphid consumption and oviposition for five imported coccinellids at constant temperature on Russian wheat aphids and greenbugs. Southwestern Entomologist 17(3): 233-243, 1992

Leaf pubescence effects in wheat on yellow sugarcane aphids and greenbugs (Homoptera: Aphididae). Journal of Economic Entomology 87(1): 231-240, 1994

Effect of greenbugs (Homoptera: Aphididae) on yield loss of winter wheat. Journal of Economic Entomology 95(1): 89-95, 2002

Variations in damage to wheat caused by russian wheat aphid homoptera aphididae in texas usa. Journal of Economic Entomology 82(2): 466-471, 1989

Variations in damage to wheat caused by Russian wheat aphid (Homoptera: Aphididae) in Texas. Journal of Economic Entomology 82(2): 466-471, 1989

Factors reducing the pest status of the Russian wheat aphid (Homoptera: Aphididae) on wheat in the Rolling Plains of Texas. Journal of Economic Entomology 86(3): 899-905, 1993

The impact of natural enemies on the population dynamics of cereal aphids on winter wheat in Upper Hessen (Homoptera: Aphididae). Entomologia Generalis 13(3-4): 189-206, 1988

Spatial distribution of fall populations of Russian wheat aphid (Homoptera: Aphididae) in winter wheat. Journal of Economic Entomology 87(5): 1230-1236, 1994

Economic injury level for the Russian wheat aphid (Homoptera: Aphididae) on dryland winter wheat. Journal of Economic Entomology 85(3): 987-992, 1992

Economic injury levels for the Russian wheat aphid (Homoptera: Aphididae) on winter wheat in several climate zones. Journal of Economic Entomology 91(3): 741-747, 1998

Effect of plant phenology and climate on Russian wheat aphid (Homoptera: Aphididae) damage to winter wheat. Environmental Entomology 27(2): 221-231, 1998

Insect-plant interactions: greenbugs (Homoptera: Aphididae) disrupt acclimation of winter wheat to drought stress. Environmental Entomology, 151: 118-121, 1986