The cereal leaf beetle was introduced into North America from Europe prior to 1960. An overview of the control of the insect in North America is presented with major emphasis on host plant resistance. The length and density of the adaxial trichomes (pubescence or leaf hairs) convey resistance to wheat, and the amount of resistance can be estimated mathematically without the insect being present.
Wellso, Stanley G.
"Cereal Leaf Beetle (Coleoptera: Chrysomelidae) and Winter Wheat: Host Plant Resistance Relationships,"
The Great Lakes Entomologist, vol 19
Available at: https://scholar.valpo.edu/tgle/vol19/iss3/10