’Sneezing’ leaves may spread disease | Science News

In a quirk of fluid dynamics, dewdrops on healthy wheat plants and sick ones go flying after two drops coalesce and surface tension is released. Water catapulted from diseased plants can take pathogens along for the ride, such as fungal spores that cause an infection called leaf rust (orange in the diseased plant clip). Video: Saurabh Nath Learn more: