Hi I’m in about Day 55 of flowering and one of my plants DogWalker OG has a sickness or deficiency that I can’t seem to figure out. Last feed was 1400 of FloraNova Bloom and ph at 6.5-6.6. The temp has been 80-87 degrees at 30 percent humidity. Here are pictures of the leaf…
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Honestly I wouldn’t be concerned its the nutrients… I’d flush for 2 weeks before you harvest… Looking damn good 
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Thank you good to hear I was worried.
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No problem… During the end of flower It normal to see yellowing actually if I don’t see it I feel like I havent fed enough… Never in veg tho if I see yellowing I immediately stop feeding.
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With your temps where they are and high ppms the plant is taking in more water and less nutes thereby raising the concentration in the soil.
An extra watering or 2 will help correct this in future.
Final flush will take care of things this time.
And welcome to GN. 
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Yup scale build up raising pH is my guess too 
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