Keeping up with the plant killers

I gave this talk in 2020, the International Year of Plant Health, to discuss the pathogens that infect our crop plants. You can see that this talk dates to April 2020 — so, while we were all thinking about a viral pandemic, other pandemics, pandemics of plant diseases, were threatening our crops. Here, I start with a brief illustration of the power of plant pathogens to re-shape plant development, then explore how other plant killers affect the crops we depend on for our survival and how plants protect themselves against these killers.