Fungal Spray for Pecan Trees
I cannot tell what this issue is from these pictures. If you bring me a good sample then we can identify the issue. The office address is:
Marshall County Extension Office
1933 Mayfield Highway
Benton KY 42025
Insects and Fungicides can be found in the document link below in table 6 on p.19. http://www2.ca.uky.edu/agcomm/pubs/id/id77/id77.pdf
Hope this helps.