Back to profile Contact person for... - dr.ir. JC (Bob) Douma Pages Ecology of plant pests and pathogens Pests and diseases have large potential effects on crop yields and are of great concern to farmers. Increasing concerns about the environmental and... Thesis projects Ecology of plant pests and pathogens Pests and diseases have large potential effects on crop yields and are of great concern to farmers. Increasing concerns about the environmental and...