Anybody know whats causing this issue on my vining plants

[pointer80]

Hello all, Does anybody know what is causing this issue on some of the leaves of a couple of my vining plants? It is on my Zucchini. We have a lot of rain lately, almost to flood stage in some surrounding areas. I also treated my plants with Neem oil about a week ago. Thanks in advance all.

 

[pointer80]

Anybody??

 

[Tjohn]

They may need a shot of fertilizer if they have gotten very wet lately.