Dr. Paul Harvey, the team leader of Ecosystem Science in The Commonwealth Scientific and Industrial Research Organization (CSIRO), visited Plant Protection Institute (PPI) on invitation from April 23 to 24. During his visit, Dr. Paul Harvey gave a presentation entitled in “Agri-ecology of endophytic root disease suppressive Trichoderma inoculants”. After the presentation, Dr. Paul Harvey had discussion with the researchers in PPI about the quantitative detection of biocontrol agents, the interaction between biocontrol agents and the pathogens, as well as the function of genes in biocontrol agents. Dr. Paul Harvey also visited the experimental farm of PPI and investigated wheat diseases prevalence and experiment of wheat growth promotion bacteria screening. This visit promoted the more in-depth cooperation between CSIRO and PPI.