Martin Anderson, Texas AgriLife Extension Service. "Kentucky Bluegrass". Aggie Horticulture. Archived from the original on 2023-05-08.
usda.gov
ars.usda.gov
Pfadt, Robert E. (1994). "Species Fact Sheet - Clubhorned Grasshopper"(PDF). Wyoming Agricultural Experiment Station Bulletin 912 · Grasshopper Species Fact Sheets. Agricultural Research Service U.S. Department of Agriculture - Pest Management Research: Sidney, MT. Archived(PDF) from the original on 2024-12-08. Retrieved 2025-01-29.
web.archive.org
Martin Anderson, Texas AgriLife Extension Service. "Kentucky Bluegrass". Aggie Horticulture. Archived from the original on 2023-05-08.
Pfadt, Robert E. (1994). "Species Fact Sheet - Clubhorned Grasshopper"(PDF). Wyoming Agricultural Experiment Station Bulletin 912 · Grasshopper Species Fact Sheets. Agricultural Research Service U.S. Department of Agriculture - Pest Management Research: Sidney, MT. Archived(PDF) from the original on 2024-12-08. Retrieved 2025-01-29.