Scientific name
Caelifera
Pest image (all)
Grasshopper
Management guide
Description
Grasshoppers are a problem at seedling emergence. During years of high populations, grasshoppers migrate into emerging stands and devour the cotyledons. Damage is usually limited to the field margins, but total stand loss there can occur.
Source of information
http://entomology.k-state.edu/extension/insect-information/crop-pests/canola/grasshoppers.html
Pest photo source
Brian McCornack, KSU Entomology