Help burnt tips

The tips of my leaves are browning, I think the nitrogen is too high. Also, my ph is around 7, too high no? any professional advice would be greatly appreciated.

burn tips might be nute burn and 7 is good. but the ideal ph is between 6.3 and 6.8

The leaf tips brown when there is not a lot of K nutrient, if it is only the tips of the leaves that are affected, then its K def. Increase K in fertilizer to a bit under N levels, see if that helps. May want to flush first, will probably be beneficial to clear out the old nuts but make sure you are not overwatering and that oxygen gets to the roots by stirring up the top half inch of soil, etc. Restoring K will not fix dead leaf tips, but new growth will no longer have this problem.