What do you guys think?

Looking for tips or any advise I have 15 years under my belt but as every one knows growing advances so I'd like to evolve with it . I'm a strictly outdoor grower for plant size and terp.
Btw this is my lemon Cherry gelato &my Mandarin cookies from ethos. I also have a grape diamond by ethos.

Looks like you have the Purple Phytoplasm in some tops and some nutrient imbalances. Do you do any preventive maintenance during the season?

This is my grape diamonds by ethos how long do you guys think I have left.