Evaluation location: Texas, United States
Dr. Jerry Michels is a professor in the Department of Entomology at Texas A&M University and is located at the Texas Agricultural Experiment Station in Bushland, TX. Dr. Michels and his technical staff evaluate resistance to the sugar beet root aphid. His staff is hired through Texas A&M University and consists of full time professional technical personnel. This is a greenhouse test that is evaluated against a resistant and susceptible sugar beet check. Replications consist of a single plant grown in a pot and infested with aphids at the four leaf stage; each accession is replicated 15 times. The plants are evaluated six weeks after infestation and scored on a 1 to 4 scale] (no aphid colonization to major aphid colonization and reproduction) scale.
For an Excel (xlsx) file of Michels screening data from 1995 to 2010