What is this? Do I need to worry?

[Suzycue]

View attachment 4352431 View attachment 4352430

 

[Merlin1147]

Hard to tell. Is it only on those leaves? Whole plant pic may help. Is it an outdoor grow? Could be mechanical damage from wind and that wall. The spots look really white in the first pic. Hey and where did that leaf tip go? There is some tip burn which could be from high salts.

 

[McFrosticles]

Looks like maybe a calcium deficiency

 

[jungle666]

Hard to tell. Is it only on those leaves? Whole plant pic may help. Is it an outdoor grow? Could be mechanical damage from wind and that wall. The spots look really white in the first pic. Hey and where did that leaf tip go? There is some tip burn which could be from high salts.

What Merlin said