The plant disease ‘Fire Blight of Pears’ was reported by –

Correct option is A

Correct option: (a) T.J. Burrill
· T.J. Burrill discovered that Fire Blight of pear and apple is caused by a bacterium (Erwinia amylovora), making him one of the first to identify a bacterial plant pathogen.
Other options:
· (b) E. Jenner – Known for smallpox vaccine, not plant diseases.
· (c) W.M. Stanley – First to crystallize viruses (TMV).
· (d) K.C. Mehta – Known for wheat rust research in India.