o, it's not the ‘fire blight' pathogen Erwinia amylovora that affects apple and pear trees, you can actually use hot composting to destroy plant material infected with the pathogen Erwinia amylovora. I think what is being referred to as ‘fire blight' in reference to hot composting is some kind of thermophilic composting bacteria. LikeLike Reply Jax says:  October 0, 0000 at 0:00 pm 