The following Nebraska Extension resources offer photos, identification guides, and insecticides for insects commonly found in alfalfa:
- Alfalfa Insects I. Photos and identification information for insect pests of alfalfa in Nebraska, including alfalfa weevil; clover leaf weevil; blister beetles; army, variegated and dingy cutworms, alfalfa caterpillar, and the green cloverworm.
- Alfalfa Insects II. Photos and identification information for insect pests of alfalfa in Nebraska, including the pea, spotted alfalfa, cowpea, and blue alfalfa aphids; potato leafhopper; and plant bug.
- Insecticides for Field Crops, including current alfalfa pest management information from UNL Extension. (The guide is excerpted from Nebraska Extension's Guide for Weed, Disease and Insect Management in Nebraska.)
- Insect Almanac, a website of the UNL Department of Entomology.
- CropWatch News: Search for tmely articles on identifying and treating alfalfa insects or reference the CropWatch News Archive.