Hi!
I'm from Italy and I have two little pecan plants.
One of them has some strange damages and spots since last week.
First the top of a new shoot dried and blackened, with about 5-6 leaves. Also the buds and small shoots have dried. This happened after 3 days of heavy rains.
Today I noticed the appearance of strange black spots on leaves, stem and branches.
Earlier I treated them with fungicides against scab disease since the nearby walnut is infected with scab.
According to you what is the problem and how can I control it.