If you know it's rot, remove any buds you can see it in and pray for the rest. You'll come across more during harvest that you were not aware of, so look it over very well.
Also, a 50 pint dehumidifier helps tremendously during flower.
Tip: anyone who claims "organic soil" is easiest, ask them how many bags of shit they keep on hand, ask about top dressing and brewing teas. Also ask them how long until nutrients are available to the plant. I could go on and on...
Then look into drain to waste coco growing.
Both are Sativa traits. Landrace Sativas can take a long time to flower. That's why most commercial growers won't run them. 16 weeks of flower is not uncommon.
Looking good @Wisesgl Don't knock those landrace genetics. Plenty of folks here would happily grow those over the hybrid mish-mash...