Zombie plants

Mutant zombie plants
Perhaps one of the most surprising examples of a real-life zombie in nature is not in animals whose behaviour goes awry – but in plants that are transformed into mutant versions of themselves.
Saskia Hogenhout at the John Innes Centre and colleagues discovered the mechanism by which one group of bacteria, phytoplasma, transform helpless plants into zombies. They published their research in 2014.
The bacteria in question need to be spread by insects that feed on plant sap, for example leafhoppers. But in order to attract these vehicles of contagion, infected plants must first be bent to the bacteria's will.

http://www.bbc.com/earth/story/20170313-real-life-zombies-that-are-stranger-than-fiction