Agronomy and Horticulture Department



Corn Rootworm: Small Insect, Big Impact

Date of this Version


Document Type



Plant and Soil Sciences eLibrary (PASSeL) Lesson

NSE approved


Copyright © 2012 Leah Sandall, Lance Meinke, Don Lee, and Blair Siegfried. Used by permission.

This project was supported in part by the National Research Initiative Competitive Grants CAP project 2011-68002-30029 from the USDA National Institute of Food and Agriculture, administered by the University of California-Davis and by the National Science Foundation (NSF), Division of Undergraduate Education, National SMETE Digital Library Program, Award #0938034, administered by the University of Nebraska. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the authors and do not necessarily reflect the views of the USDA or NSF.

This project was supported by the Nebraska Research Initiative, University of Nebraska-Lincoln (2012).


Corn rootworm can cause devastating effects to corn yields. The focus of this lesson is the ongoing research of scientists as they work to combat the resistance of corn rootworm to control measures. The importance of this research in developing Insect Resistance Management strategies is discussed.


After reading this lesson you should be able to

  1. List reasons for collecting data/doing research.
  2. Describe a field research study that tests a hypothesis on transgenic control of corn rootworm populations.
  3. Define and identify different levels of selection pressure.
  4. Predict the impact a specific selection pressure can have on the corn rootworm population.

The target audience for this lesson is the undergraduate college learner and the general public.