Multiple choice Disease in plants are caused by pathaogens such as............ bacteria,fungi,viruses fungi,protozoa,paramecium none of these covid-19 Reveal answer Fill a bubble to check yourself A Correct answer Explanation Plant diseases are caused by three main pathogen types: bacteria (blights, rots), fungi (rusts, mildews), and viruses (mosaics, leaf curls). Protozoa and paramecium are not plant pathogens, and COVID-19 affects humans.