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Iowa State University

The European Corn Borer

Department of Entomology

  • The Insect
    • Identification
    • Life Cycle and Generational Ecotypes
    • Pheromone Types and Pheromone Trapping
    • How Corn is Damaged
  • Management
    • Scouting Techniques
    • First Generation
    • Second Generation
    • Reaching a Management Decision
    • First Generation in Whorl-Stage Corn
    • Second Generation in Tassel-Stage or Later Corn
    • Cost-Benefit
    • Timing Insecticide Treatment
    • Application Equipment
    • Resistant Varieties
    • Biological Agents
    • Transgenic Corn
    • Weather
    • Cultural Practices
  • Commodities
    • Sweet Corn
    • Popcorn
    • Seed Corn
    • Peppers
    • Snap Bean
    • Cotton
    • Wheat
    • Potato
    • Other Crops
  • Predictive Models
  • Galleries
Eggs

 
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Description: 

Egg sacs of spiders on corn leaves may be confused with European corn borer eggs because of their similarity in color and size. However, spider egg sacs are usually fuzzy and not overlapping like fish scales.

Iowa State University

Department of Entomology

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