As you can see in these 2 pictures there appears this strange clawing downwards in the leaves. I've got the same problem in a bigger scale on some plants. Allmost stopped to give them nitrogen because they look very dark green and that clawing might be "nitrogen claws". Anybody knows a solution to this problem? Lower more the N?
Using EC1
PH5.8
dark green with claws of big fans leafes should be one of two things....
1) genetics.... blueberry is famous for this...
2) too much N as you pointed out before....