I have a 3 in one Asian pear. Hosui, Chojuro, and 20th centuries…
The only one I found the black spots is on the 20th century leave. Like 5 leaves, but no sign on the branch.
I also spray it with a pesticide poison for plants that I bought at homedepot.
Can’t it be a bit to strong for the leaves or is it fireblight?
Also thinking Venturia pirina…
