Evaluation location: Ohio, United States
Information evaluated and summarized for GRIN by Dr. S.L. Clement, RPIS, Pullman, WA, 4/9/1997. Methods to rate PI lines: (1) to count nymphs on trifoliate leaf samples (2) to rate plots for leafhopper damage, where: Resistance in beans to potato leafhopper (Empoasca fabae) is considered high/resistant if the mean number of nymphs per trifoliate leaf is 0.4 or less and low/susceptible if the number is 0.5-1.5. R = Resistant, LR = Low level resistance, S = Susceptible. Material field screened under natural infestations in Marietta and Wooster, Ohio. Investigators: Dan Wolfenbarger and J.P. Sleesman. References: Wolfenbarger, D. and J.P. Sleesman. 1961. Resistance in Common Bean Lines to the Potato Leafhopper. Journal of Economic Entomology 54:846-849. And Wolfenbarger, D. and J.P. Sleesman. 1961. Resistance to the Potato Leafhopper in Lima Bean Lines, Interspecific Phaseolus Crosses, Phaseolus spp., the Cowpea, and the Bonavist Bean. Journal of Economic Entomology 54:1077-1079.