UC IPM Online UC ANR home page UC IPM home page

UC IPM Home

SKIP navigation

 
  Printer-friendly version

Research and IPM

Phenology Model Database

| More models | Calculate degree-days |
="English

English Grain Aphid

Scientific name: Macrosiphum avenae (Sitobion avenae)

Phenology models predict timing of events in an organism's development. For many organisms which cannot internally regulate their own temperature, development is dependent on temperatures to which they are exposed in the environment.

Information in this database comes from published articles. It may be used in conjunction with field monitoring and a degree-day calculator.

Note: Before using a model that was not field tested in your location, you should test the model for one or more seasons under your conditions to verify that it will work for you.

Model 1 of 1

Kieckhefer, R. W., N. C. Elliott, and D. D. Walagenbach. 1989. Effects of constant and fluctuating temperatures on developmental rates and demographic statistics of the English grain aphid (Homoptera: Aphididae). Ann. Entomol. Soc. Am. 82: 701-706.

Location of study: South Dakota (laboratory studies)

Developmental thresholds
Lower:39.2°F (4.0°C)
Upper:76.3°F (24.6°C)

Method of calculation:Double Sine
Cutoff method:Horizontal Cutoff

Degree-day accumulations required for each stage of development
Host: BarleyDD (°F)DD (°C)
Apterae generation time: 246.2136.8
Alatae generation time: 271.4150.8

Statewide IPM Program, Agriculture and Natural Resources, University of California
All contents copyright © 2014 The Regents of the University of California. All rights reserved.

For noncommercial purposes only, any Web site may link directly to this page. FOR ALL OTHER USES or more information, read Legal Notices. Unfortunately, we cannot provide individual solutions to specific pest problems. See our Home page, or in the U.S., contact your local Cooperative Extension office for assistance.

Acknowledgements Staff-only pages Subscribe (RSS) Contact UC IPM

Agriculture and Natural Resources, University of California

© 2014 Regents of the University of California Division of Agriculture and Natural Resources Nondiscrimination Statement

Accessibility   /PHENOLOGY/ma-english_grain_aphid.html?srcPage=PHENOLOGY%2Fma-english_grain_aphid.html revised: July 10, 2014. Contact webmaster.