CMV, INSV, TSWV, SqMV, WTF? Viruses are a confounding complex of pathogens of our vegetable crops that can hide in overhead ornamentals in greenhouses and non-crop weeds in fields. How can you prevent them from infecting plants, identify if plants are infected, or manage plants after infection? Brett Arenz, from the University of Minnesota, and Jan Byrne, from Michigan State University, join us to discuss these mysterious plant problems.