Science and Education Publishing Research in Plant Sciences 2 1 2014 02 10 Evaluation of Bioagents Seed Treatment Against Colletotrichum Lindemuthianum, in Haricot Bean Anthracnose under Field Condition 22 26 EN Mohammed Amin Department of Plant Science, College of Agriculture and Veterinary Science, Ambo University, Ethiopia Jifara Teshele Amare Tesfay PLANT2014215 10.12691/plant-2-1-5 2014 01 07 2014 01 22 2014 02 10 The effect of Pseudomonas fluorescence, Trichoderma viride and Trichoderma harzianum on anthracnose was studied at Ambo, Ethiopia during the 2013 cropping season. There were highly significant differences between disease levels and seed yield among bio agent seed treated plots. Anthracnose on beans from untreated seed-planted was more in diseases incidence and severity than on beans from seed treated plots with Pseudomonas fluorescence, Trichoderma harzianum, and Trichoderma viride. Bean seed yield and yield components aspect were also influenced by the bioagents. Lower hundred seed weight, infected pods per plant and seed yield were obtained from seed untreated plots. There were no significant differences in pods per plant and seeds per pod. Highly significant AUDPC of 1529.8%-day occurred in the control plot and 672.2%-day in the seed treated with Pseudomonas fluorescence plot. Management options that highly reduce anthracnose primary inoculum should be promoted indicating that the purpose of seed treatment was to reduce the primary inoculum.